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The misuse of fentanyl and more recently tramadol in the population has caused an opioid crisis in several countries and drawn much public attention worldwide. However, there is a gap of information on the potential misuse of fentanyl and tramadol in China. This study aims to fill this gap by analysing fentanyl and tramadol in wastewater of major cities across China to estimate their use. Wastewater samples were collected from 30 cities located across all seven geographic regions of China, from 2016 to 2019. Fentanyl was detected in only a few samples, suggesting a low prevalence of this potent opioid drug in China. Meanwhile, tramadol was found in most samples with concentrations ranging up to 186 ng/L. The per capita daily consumption of tramadol estimated from wastewater across China ranged from 6 mg/d/1000 in. to 213 mg/d/1000 inh. The consumption of tramadol seems to be similar among all the days of the week. Tramadol use is overall higher in Northeast China than in other regions, which is different from heroin, another popular opioid in China. Temporally, there is a significant decrease in tramadol use in major cities of China from 2016 to 2019. The results of our study suggested that tramadol use in China was predominantly from pharmaceutical prescription and not as prevalent as in other countries.
Peng Du; Zilei Zhou; Zhenglu Wang; Zeqiong Xu; Qiuda Zheng; Xinyue Li; Jia He; Xiqing Li; Hongguang Cheng; Phong K. Thai. Analysing wastewater to estimate fentanyl and tramadol use in major Chinese cities. Science of The Total Environment 2021, 795, 148838 .
AMA StylePeng Du, Zilei Zhou, Zhenglu Wang, Zeqiong Xu, Qiuda Zheng, Xinyue Li, Jia He, Xiqing Li, Hongguang Cheng, Phong K. Thai. Analysing wastewater to estimate fentanyl and tramadol use in major Chinese cities. Science of The Total Environment. 2021; 795 ():148838.
Chicago/Turabian StylePeng Du; Zilei Zhou; Zhenglu Wang; Zeqiong Xu; Qiuda Zheng; Xinyue Li; Jia He; Xiqing Li; Hongguang Cheng; Phong K. Thai. 2021. "Analysing wastewater to estimate fentanyl and tramadol use in major Chinese cities." Science of The Total Environment 795, no. : 148838.
PM2.5 is one of the primary components of air pollutants, and it has wide impacts on human health. Land use regression models have the typical disadvantage of low temporal resolution. In this study, various point of interests (POIs) variables are added to the usual predictive variables of the general land use regression (LUR) model to improve the temporal resolution. Hourly PM2.5 concentration data from 35 monitoring stations in Beijing, China, were used. Twelve LUR models were developed for working days and non-working days of the heating season and non-heating season, respectively. The results showed that these models achieved good fitness in winter and summer, and the highest R2 of the winter and summer models were 0.951 and 0.628, respectively. Meteorological factors, POIs, and roads factors were the most critical predictive variables in the models. This study also showed that POIs had time characteristics, and different types of POIs showed different explanations ranging from 5.5% to 41.2% of the models on working days or non-working days, respectively. Therefore, this study confirmed that POIs can greatly improve the temporal resolution of LUR models, which is significant for high precision exposure studies.
Yan Zhang; Hongguang Cheng; Di Huang; Chunbao Fu. High Temporal Resolution Land Use Regression Models with POI Characteristics of the PM2.5 Distribution in Beijing, China. International Journal of Environmental Research and Public Health 2021, 18, 6143 .
AMA StyleYan Zhang, Hongguang Cheng, Di Huang, Chunbao Fu. High Temporal Resolution Land Use Regression Models with POI Characteristics of the PM2.5 Distribution in Beijing, China. International Journal of Environmental Research and Public Health. 2021; 18 (11):6143.
Chicago/Turabian StyleYan Zhang; Hongguang Cheng; Di Huang; Chunbao Fu. 2021. "High Temporal Resolution Land Use Regression Models with POI Characteristics of the PM2.5 Distribution in Beijing, China." International Journal of Environmental Research and Public Health 18, no. 11: 6143.
In the field of environmental health, the impact of air pollution on people's cognitive function is receiving increasing attention. Various air pollution exposures and different exposure periods result in different degrees of damage to cognition. This paper first used CFPS cognitive tests to evaluate the cognitive function of 15,163 adults in 25 provinces of China. Next, based on the geographical location of the population, the kriging interpolation method was applied to evaluate the different exposure periods for various air pollutants (PM2.5, NO2 and O3). Air pollution exposures lasting 3 years and more were referred to in this paper as long-term exposures, while those lasting<3 years were short-term exposures. This paper used an ordinary least squares (OLS) regression model to explore the differential effects of various air pollutant exposures and discussed the impact of long- and short-term exposure to pollutants. Subsequently, Moran's index was used to test the spatial connection for cognitive function, and the spatial error model was used for analysis in the spatial autoregressive model. This research also conducted a heterogeneity study on the justice of air pollutant exposure among people with different characteristics. The population was classified according to cognitive function and geographic location using OLS regression and quantile regression, and a propensity score matching (PSM) model was used for cross-validation to explore whether people with different characteristics and attributes were differentially exposed to air pollution. We found that there were significant negative relationships between air pollutant exposure and cognitive function, especially PM2.5 exposure and long-term exposure. In addition, air pollution had significantly different impacts on cognition based on the different characteristics and attributes of the person exposed. This study helps by analyzing the socioeconomic factors that affect the level of exposure and suggests that groups who are vulnerable to environmental pollution should be protected and the occurrence of injustice reduced. The study also provides a reference for the distribution of pollution sources and the allocation of health resources, which can be useful for population distribution planning.
Huaxi Gao; Jieran Shi; Hongguang Cheng; Yaqin Zhang. The impact of long- and short-term exposure to different ambient air pollutants on cognitive function in China. Environment International 2021, 151, 106416 .
AMA StyleHuaxi Gao, Jieran Shi, Hongguang Cheng, Yaqin Zhang. The impact of long- and short-term exposure to different ambient air pollutants on cognitive function in China. Environment International. 2021; 151 ():106416.
Chicago/Turabian StyleHuaxi Gao; Jieran Shi; Hongguang Cheng; Yaqin Zhang. 2021. "The impact of long- and short-term exposure to different ambient air pollutants on cognitive function in China." Environment International 151, no. : 106416.
Cancer, as well as the phenomena of cancer villagers, has attracted great concern from national and internal publics because of the high morality for population. Reference to long latency periods and multiple causalities for several cancers, cancer villages have usually used as circumstantial evidence for an association with cancers and environmental determinants relevant to economic-agricultural and demographic development even though there was no official definition and unified discrimination rule. On the assumption that all reported cancer villages are real and credible, this study primarily aimed to test the hypothesis that the water quality has caused concentration of cancer villages. The temporal and spatial pattern of Chinese cancer villages reported by media and literatures were firstly explored by means of spatial mapping and regression analysis. Considering the insignificant Moran'I coefficient, stepwise regression model combined with principal component regression model were performed to identify the association between cumulative number of cancer villages and water quality and other social-economic-environmental factors. The findings showed that there are at least 462 cancer villages across 226 counties in 29 out of 31 provincial administrative units were reported in China by the end of 2017, with an average of 7 new cancer villages per year, since the initial cancer village appeared in 1954. The number of cancer villages increased slowly before 2000 and dramatically accelerated during 10th and 11th Five-Year Plan period. The cumulative number of cancer villages increased gradient from West to East with regionally clustered and uneven spatial distribution. Cancer villages tend to cluster along the middle and lower reaches of major rivers and their branches, especially in Yangtze River Delta, the Bohai economic rim, the borders of Hunan, Hubei and Jiangxi provinces, as well as the borders of Yunnan and Guizhou province. Cumulative occurrence of cancer villages might be affected by domestic economic development, urbanization, as well as discharge of heavy metals in waste industrial water.
Xiangfen Cui; Hongguang Cheng; Haixu Sun; Jianhong Huang; Di Huang; Qin Zhang. Human health and environment: Spatiotemporal variation of chinese cancer villages and its contributing factors. Ecological Engineering 2020, 158, 106075 .
AMA StyleXiangfen Cui, Hongguang Cheng, Haixu Sun, Jianhong Huang, Di Huang, Qin Zhang. Human health and environment: Spatiotemporal variation of chinese cancer villages and its contributing factors. Ecological Engineering. 2020; 158 ():106075.
Chicago/Turabian StyleXiangfen Cui; Hongguang Cheng; Haixu Sun; Jianhong Huang; Di Huang; Qin Zhang. 2020. "Human health and environment: Spatiotemporal variation of chinese cancer villages and its contributing factors." Ecological Engineering 158, no. : 106075.
Different functions of various POIs result in different concentrations of PM2.5 at their locations and a different number of people gathering near them. This study divided the Baoding into 500 m × 500 m grids and studied several representative moments. The frequency of 16 kinds of POIs in each grid was calculated, and the kriging interpolation model was used to simulate PM2.5 concentration. The average pollutant concentration at each kind of POI was calculated. With mobile signal data, we count the number of people in each grid at each moment in real time. Then we used stepwise and principal component regression (PCR) to identify the relationship between the population distribution and various kinds of POIs. We found that the types of POIs with the highest and lowest pollutant PM2.5 concentrations in the study area did not change much most of the time. The relationship between each kind of POI and population distribution is also varied. Combining these two POI characteristics, we analyzed the causes and significance of these features, considering the functions of the various kinds of POIs and the main groups of people attracted. This study also provides suggestions on environmental exposure and urban planning according to the results obtained.
Jieran Shi; Huaxi Gao; Hongguang Cheng; Haixu Sun; Di Huang. Study on the exposure risk based on the PM2.5 pollution characteristics of POIs and their attractiveness to the crowd. Human and Ecological Risk Assessment: An International Journal 2020, 1 -19.
AMA StyleJieran Shi, Huaxi Gao, Hongguang Cheng, Haixu Sun, Di Huang. Study on the exposure risk based on the PM2.5 pollution characteristics of POIs and their attractiveness to the crowd. Human and Ecological Risk Assessment: An International Journal. 2020; ():1-19.
Chicago/Turabian StyleJieran Shi; Huaxi Gao; Hongguang Cheng; Haixu Sun; Di Huang. 2020. "Study on the exposure risk based on the PM2.5 pollution characteristics of POIs and their attractiveness to the crowd." Human and Ecological Risk Assessment: An International Journal , no. : 1-19.
The concept of circular economy (CE) has recently gained momentum in the political, scientific, and economic debate, especially in China and Europe. As a result, organizations and scholars have started to establish different sets of principles for its adoption. For this reason, it is important to identify and assess the differences and similarities among existing sets of CE principles, and how organizations and individuals understand and translate them into practice. In this paper, we firstly present a brief review and analysis of the coherence among six existing sets of principles. Our analysis finds that, despite the mixed degree of coherence, all sets describe the necessity to implement CE principles at all levels of a company. We then present the results of an in-depth qualitative survey that investigates how 19 key informants representing small, medium, and multinational companies based in China understand and carry out the CE principles laid out by the BSI standard BS 8001:2017; how these principles can transform the culture and processes of these companies; and what are the opportunities and threats that such transformation can bring. Results describe a good awareness and knowledge of the CE principles and an optimistic outlook concerning their adoption. At the same time, numerous barriers and threats that the implementation of these principles might entail are presented. Overall, respondents confirm the complexity of implementing the principles of the CE in an integrated and consistent way in the management and strategies of Chinese companies and highlight the challenges that might arise during their implementation.
Marco Pesce; Ilaria Tamai; Deyan Guo; Andrea Critto; Daniele Brombal; Xiaohui Wang; Hongguang Cheng; Antonio Marcomini. Circular Economy in China: Translating Principles into Practice. Sustainability 2020, 12, 832 .
AMA StyleMarco Pesce, Ilaria Tamai, Deyan Guo, Andrea Critto, Daniele Brombal, Xiaohui Wang, Hongguang Cheng, Antonio Marcomini. Circular Economy in China: Translating Principles into Practice. Sustainability. 2020; 12 (3):832.
Chicago/Turabian StyleMarco Pesce; Ilaria Tamai; Deyan Guo; Andrea Critto; Daniele Brombal; Xiaohui Wang; Hongguang Cheng; Antonio Marcomini. 2020. "Circular Economy in China: Translating Principles into Practice." Sustainability 12, no. 3: 832.
Oral ingestion is the main exposure pathway through which humans ingest trace metals in the soil, particularly for children. Metals in different soil particle size fractions may vary in terms of concentration and properties. Urban school/kindergarten soil samples were collected from three cities: Lanzhou in northwest China, Wuhan in central China, and Shenzhen in southeast China. Soil samples were classified according to particle size (<63 μm, 63–150 μm, 150–250 μm, and 250–2000 μm) to estimate the effects of soil particle size on the total content and bioaccessibility of metals (Cd, Cr, Cu, Ni, Pb, and Zn). Based on the results, we assessed whether the standard size <150 μm (containing < 63 μm and 63–150 μm), recommended by the Technical Review Workgroup (TRW) of the Environmental Protection Agency (EPA), and <250 μm (containing < 63 μm, 63–150 μm, and 150–250) recommended by the Bioaccessibility Research Group of Europe (BARGE), are suitable where the largest proportion adhering to hands is the finest soil (<63 μm). The results showed that different metals exhibited different relationships between soil particle size and content and between soil particle size and bioaccessibility. Pb and Zn generally exhibited the greatest bioaccessibility in the coarsest particle sizes (250–2000 μm); whereas the highest Ni bioaccessibility occurred in the finest sizes (<63 μm); the bioaccessibility of other metals did not exhibit any obvious relationships with particle size. When assessing health risks using bioaccessible metal content in the recommended soil particle size ranges (<150 μm and <250 μm) and in finer particles (<63 μm), the results for noncarcinogenic risks to children exhibited no obvious difference, while the actual carcinogenic risks may be underestimated with the use of soil particle size ranges < 150 μm and <250 μm. Therefore, when choosing an optimal particle size fraction to evaluate the health risk of oral soil ingestion, we recommend the use of the bioaccessible metal content in <63 μm soil fraction.
Junwei Ma; Yuqian Li; Yanzhong Liu; Chunye Lin; Hongguang Cheng. Effects of soil particle size on metal bioaccessibility and health risk assessment. Ecotoxicology and Environmental Safety 2019, 186, 109748 .
AMA StyleJunwei Ma, Yuqian Li, Yanzhong Liu, Chunye Lin, Hongguang Cheng. Effects of soil particle size on metal bioaccessibility and health risk assessment. Ecotoxicology and Environmental Safety. 2019; 186 ():109748.
Chicago/Turabian StyleJunwei Ma; Yuqian Li; Yanzhong Liu; Chunye Lin; Hongguang Cheng. 2019. "Effects of soil particle size on metal bioaccessibility and health risk assessment." Ecotoxicology and Environmental Safety 186, no. : 109748.
Rainfall can directly remove atmospheric pollutants through the below-cloud scavenging process, and the atmospheric particles also affect the chemical composition of rainfall. Therefore, the interactions between rainfall properties and fine particulate matter (PM2.5) need deep investigation. Based on simultaneous in situ measurements of PM2.5 and rainfall samples during May–October in 2017 and 2018, their chemical composition dynamics and the relationship were identified. It was found that NO3− and SO42− were predominant in PM2.5, whereas NO3− and Ca2+ were the main ionic species in rainfall. The characteristics of ions in rainfall and PM2.5 showed that Beijing was heavily affected by mobile sources and by anthropogenic pollution. The PM2.5 was most effectively removed from the atmosphere by rainfall and the responses of the ionic compositions of PM2.5 to the washing effect were much different. Simultaneously, PM2.5 posed a significant impact on Ca2+ and K+ in rainwater. The effect of PM2.5 1 day before rain on the Ca2+ in rainwater was more prominent than the effect of the chemical species in PM2.5 on the day of the rainfall, while the trend was the opposite for K+. The key factors affecting the characteristics of ions in PM2.5 and rainfall were rainfall amount, duration and relative humidity. The wind direction also have big impacts on NH4+. The findings provide more scientific supports the rainfall pollution and PM2.5 management in the urban.
Bing Gao; Wei Ouyang; Hongguang Cheng; Yi Xu; Chunye Lin; Jing Chen. Interactions between rainfall and fine particulate matter investigated by simultaneous chemical composition measurements in downtown Beijing. Atmospheric Environment 2019, 218, 117000 .
AMA StyleBing Gao, Wei Ouyang, Hongguang Cheng, Yi Xu, Chunye Lin, Jing Chen. Interactions between rainfall and fine particulate matter investigated by simultaneous chemical composition measurements in downtown Beijing. Atmospheric Environment. 2019; 218 ():117000.
Chicago/Turabian StyleBing Gao; Wei Ouyang; Hongguang Cheng; Yi Xu; Chunye Lin; Jing Chen. 2019. "Interactions between rainfall and fine particulate matter investigated by simultaneous chemical composition measurements in downtown Beijing." Atmospheric Environment 218, no. : 117000.
Nitrous oxide (N2O) from agricultural ditches is a non-negligible source of anthropogenic greenhouse gas (GHG) emissions, but few studies have addressed this topic in depth. On the other hand, although there are numerous reports that biochar application can affect N2O emissions from soil, the understanding of the process and source of changes is still incomplete. To examine the effect of biochar and Calamagrostis angustifolia on N2O emissions, we conducted experiments with constructed ditches where corn stalk biochar (pyrolysis temperature of 450 °C) was applied at a rate of 16.77 Mg ha-1 and C. angustifolia was planted. The sources (native sediment versus exogenous inorganic N) and production pathways (nitrification versus denitrification) of N2O emissions were discriminated using the 15N isotope tracer method. We observed that biochar application reduced the cumulative total N-N2O emissions from the native sediment by 10.8-18.7% and reduced the cumulative 15N-N2O emissions from the exogenous 15N-labelled inorganic N by 25.7-68.6%; C. angustifolia planting reduced these cumulative N2O emissions by 48.8-53.3% and 93.3-92.4%, respectively. The results showed that biochar stimulated nitrification and nitrification-derived 15N-N2O emissions, but reduced denitrification-derived 15N-N2O emissions in bare sediment microcosms; C. angustifolia effectively reduced both nitrification-derived and denitrification-derived 15N-N2O emissions. Therefore, we concluded that the effect of biochar application on N2O emissions may depend on its dominant N2O production pathway and biochar application plus C. angustifolia planting could be beneficial for the mitigation of N2O emissions in agricultural ditch systems.
Qianding Cheng; Hongguang Cheng; Zhenzhen Wu; Xiao Pu; Lu Lu; Jian Wang; Jinbo Zhao; Aihua Zheng. Biochar amendment and Calamagrostis angustifolia planting affect sources and production pathways of N2O in agricultural ditch systems. Environmental Science: Processes & Impacts 2019, 21, 727 -737.
AMA StyleQianding Cheng, Hongguang Cheng, Zhenzhen Wu, Xiao Pu, Lu Lu, Jian Wang, Jinbo Zhao, Aihua Zheng. Biochar amendment and Calamagrostis angustifolia planting affect sources and production pathways of N2O in agricultural ditch systems. Environmental Science: Processes & Impacts. 2019; 21 (4):727-737.
Chicago/Turabian StyleQianding Cheng; Hongguang Cheng; Zhenzhen Wu; Xiao Pu; Lu Lu; Jian Wang; Jinbo Zhao; Aihua Zheng. 2019. "Biochar amendment and Calamagrostis angustifolia planting affect sources and production pathways of N2O in agricultural ditch systems." Environmental Science: Processes & Impacts 21, no. 4: 727-737.
Fine particulate matter (PM2.5) pollution exposure has an adverse impact on public health, and some vulnerable social groups suffer from unfair exposure. Few studies have been conducted to estimate and to compare the exposure and inequality of different residential demographics at multiple time scales. This study assessed the exposures level of age and education subgroups on the whole city and the exposure inequalities of these subgroups within a concentration interval area for PM2.5 pollution at multiple time scales in Beijing in 2015. The potential association of PM2.5 with cancer morbidity was also explored through spatial analysis. Comparing the model performance of the ordinary kriging (OK) interpolation method with that of the land use regression (LUR) model method, the OK method was applied to estimate the PM2.5 concentrations at 1 km resolution. The exposure and inequality assessments for PM2.5 pollution were conducted by calculating the population-weighted exposure level and the inequality index, respectively. The spatial correlation of PM2.5 with cancer morbidity was investigated by spatial autocorrelation and grey correlation degree analysis. Overall, for the highest 1-h concentration, older people (age ≥ 60) and residents with tertiary education were the most disproportionately exposed to PM2.5. For the higher PM2.5 concentration during the annual average, spring, autumn and winter periods, exposures to PM2.5 were disproportionately high for children (age ≤ 4) and residents with primary or secondary education. Moreover, exposures to PM2.5 were disproportionately low for the illiterate due to their geographical distribution characteristics. Additionally, the spatial distribution of cancer morbidity was similar to the spatial pattern of PM2.5, manifesting a potential spatial association between PM2.5 and cancer morbidity. These findings provide scientific support for air pollution exposure assessments and environmental epidemiology.
Wei Ouyang; Bing Gao; Hongguang Cheng; Zengchao Hao; Ni Wu. Exposure inequality assessment for PM2.5 and the potential association with environmental health in Beijing. Science of The Total Environment 2018, 635, 769 -778.
AMA StyleWei Ouyang, Bing Gao, Hongguang Cheng, Zengchao Hao, Ni Wu. Exposure inequality assessment for PM2.5 and the potential association with environmental health in Beijing. Science of The Total Environment. 2018; 635 ():769-778.
Chicago/Turabian StyleWei Ouyang; Bing Gao; Hongguang Cheng; Zengchao Hao; Ni Wu. 2018. "Exposure inequality assessment for PM2.5 and the potential association with environmental health in Beijing." Science of The Total Environment 635, no. : 769-778.
Soil ingestion by people is an important route of exposure to environmental contaminants. Studies on soil ingestion using tracer mass-balance method are mainly for young children and adults, scarcely for teenagers. In such case, the soil ingestion rate for teenagers recommended by regulators is generally identical to that of adults based on one activity pattern modeling study. However, teenagers are expected to have different soil ingestion exposure via ingestion pathway due to different activity patterns and exposure scenarios. We conducted a pilot study on soil ingestion in 30 teenage children aged 12.0-16.5 years from Hubei Province of China, using the best tracer method, with the results compared with previous soil ingestion studies. The estimated mean and median soil ingestion rates for teenagers in this study based on the best five tracers (Al, Ce, Sc, V, and Y) were 45.2 mg d and 44.8 mg d respectively, with the 95% confidence interval of the mean value ranging from 28.0 mg d to 50.9 mg d. These soil ingestion rate estimates were slightly higher than the recommended values for adults by U.S. EPA, but lower than those for Chinese younger children observed in the other similar study. The result in this study is important to access the health risk resulting from exposure to toxic substances in soil via direct soil ingestion pathway by teenagers in China as well as other countries.
Beibei Wang; Chunye Lin; Xuan Zhang; Xiaoli Duan; Dongqun Xu; Hongguang Cheng; Qin Wang; Xitao Liu; Jin Ma; Junwei Ma; Fengchang Wu. A soil ingestion pilot study for teenage children in China. Chemosphere 2018, 202, 40 -47.
AMA StyleBeibei Wang, Chunye Lin, Xuan Zhang, Xiaoli Duan, Dongqun Xu, Hongguang Cheng, Qin Wang, Xitao Liu, Jin Ma, Junwei Ma, Fengchang Wu. A soil ingestion pilot study for teenage children in China. Chemosphere. 2018; 202 ():40-47.
Chicago/Turabian StyleBeibei Wang; Chunye Lin; Xuan Zhang; Xiaoli Duan; Dongqun Xu; Hongguang Cheng; Qin Wang; Xitao Liu; Jin Ma; Junwei Ma; Fengchang Wu. 2018. "A soil ingestion pilot study for teenage children in China." Chemosphere 202, no. : 40-47.
Few studies have linked social factors to air pollution exposure in China. Unlike the race or minority concepts in western countries, the Hukou system (residential registration system) is a fundamental reason for the existence of social deprivation in China. To assess the differences in ozone (O) exposure among social groups, especially groups divided by Hukou status, we assigned estimates of O exposure to the latest census data of the Beijing urban area using a kriging interpolation model. We developed simultaneous autoregressive (SAR) models that account for spatial autocorrelation to identify the associations between O exposure and social factors. Principal component regression was used to control the multicollinearity bias as well as explore the spatial structure of the social data. The census tracts (CTs) with higher proportions of persons living alone and migrants with non-local Hukou were characterized by greater exposure to ambient O. The areas with greater proportions of seniors had lower O exposure. The spatial distribution patterns were similar among variables including migrants, agricultural population and household separation (population status with separation between Hukou and actual residences), which fit the demographic characteristics of the majority of migrants. Migrants bore a double burden of social deprivation and O pollution exposure due to city development planning and the Hukou system.
Xinyi Zhao; Hongguang Cheng; Siyuan He; Xiangfen Cui; Xiao Pu; Lu Lu. Spatial associations between social groups and ozone air pollution exposure in the Beijing urban area. Environmental Research 2018, 164, 173 -183.
AMA StyleXinyi Zhao, Hongguang Cheng, Siyuan He, Xiangfen Cui, Xiao Pu, Lu Lu. Spatial associations between social groups and ozone air pollution exposure in the Beijing urban area. Environmental Research. 2018; 164 ():173-183.
Chicago/Turabian StyleXinyi Zhao; Hongguang Cheng; Siyuan He; Xiangfen Cui; Xiao Pu; Lu Lu. 2018. "Spatial associations between social groups and ozone air pollution exposure in the Beijing urban area." Environmental Research 164, no. : 173-183.
The Chinese leadership has formally proposed that the national park system should initiate an institutional change of conservation management by reforming the governance system and management mechanism. The principle of “ecological protection first and public welfare a priority” indicates that both biodiversity and ecosystem services are essential. The “China national parks for people” project was, therefore, launched to practice an ecosystem services approach in national park planning so that scientists, practitioners and decision makers could communicate using a science-policy-practice interface (SPPI). By linking ecosystem services to the social demand of their beneficiaries through the economic definition, we set a conceptual framework for China national park construction that may also be applicable to other developing countries facing similar conservation challenges so that rural livelihood is not negligible regarding conservation. This study focuses on reducing trade-offs between ecosystem services that are important for local livelihood and that are, generally, public goods in a national park pilot. A technical route is proposed starting from the identification of beneficiaries through to regulating community behaviour using ecosystem services mapping, assessment and governance analyses. It is hypothesized that this approach will assist in national park zoning and land management, and this approach is designed to trigger increased discussion on benefit sharing in future national parks, e.g., the Wuyishan pilot, where this research was performed.
Siyuan He; Yang Su; Lei Wang; Louise Gallagher; Hongguang Cheng. Taking an ecosystem services approach for a new national park system in China. Resources, Conservation and Recycling 2018, 137, 136 -144.
AMA StyleSiyuan He, Yang Su, Lei Wang, Louise Gallagher, Hongguang Cheng. Taking an ecosystem services approach for a new national park system in China. Resources, Conservation and Recycling. 2018; 137 ():136-144.
Chicago/Turabian StyleSiyuan He; Yang Su; Lei Wang; Louise Gallagher; Hongguang Cheng. 2018. "Taking an ecosystem services approach for a new national park system in China." Resources, Conservation and Recycling 137, no. : 136-144.
It is important to integrate local residents’ awareness and perception of ecosystem services (ES) into the ES assessment for the planning of protected areas (PAs). Using data collected from the newly designated Wuyishan national park pilot, we assessed communities’ identification and perceptions of a broad range of ESs. We examined the factors that affected the preference and assessment across communities and found a PA-enclave effect: preference towards the ES categories diverge between residents inside and outside of current protected areas resulted from previous PA management. While provisioning services were recognised and closely bonded with livelihood when communities acquired them as demanders, cultural services were also recognised when communities saw themselves as providers. The recognition and assessment of regulating services were generally low as local people were more sensitive to ecological outcomes than processes. The results underline the importance of the cultural landscape history in shaping communities’ mind and the security of livelihood as a baseline to facilitate regional conservation planning. Since communities are diverse in perceptions to ESs even in the relatively homogeneous national park pilot, the management must consider a strategic planning in regulation to address the diversity in demand to achieve the conservation goal in the whole region.
Siyuan He; Louise Ann Gallagher; Yang Su; Lei Wang; Hongguang Cheng. Identification and assessment of ecosystem services for protected area planning: A case in rural communities of Wuyishan national park pilot. Ecosystem Services 2018, 31, 169 -180.
AMA StyleSiyuan He, Louise Ann Gallagher, Yang Su, Lei Wang, Hongguang Cheng. Identification and assessment of ecosystem services for protected area planning: A case in rural communities of Wuyishan national park pilot. Ecosystem Services. 2018; 31 ():169-180.
Chicago/Turabian StyleSiyuan He; Louise Ann Gallagher; Yang Su; Lei Wang; Hongguang Cheng. 2018. "Identification and assessment of ecosystem services for protected area planning: A case in rural communities of Wuyishan national park pilot." Ecosystem Services 31, no. : 169-180.
In seasonal freeze-thaw zones of NE China, the policy-oriented land management has caused successive land use conversions of native woodland, dry cropland and paddy field for food security. Controls of soil property factors on soil dissolved organic carbon (DOC) dynamics might vary with deforestation. This study aimed to test performance of soil properties interpreting DOC variability along soil profile following a vegetation succession of native forest, rainfed crops (maize-soybean rotations) and paddy rice in an observation area of the Sanjiang Plain. The linear mixed effects model evaluated relative importance of soil properties with comparisons of adjusting and not adjusting for random effects of land use and soil depth as subject variables. The modeling results revealed presence of consistent soil property factors indicating DOC dynamics before and after deforestation. When excluding interferences of land uses and soil layers, interpretations of soil properties were weakened. Soil moisture and bulk density predominantly accounted for DOC variability across land uses, presenting greater estimated effects (0.69 and −0.64, respectively) over those of total nitrogen, soil organic carbon and hydrolyzable nitrogen (0.49, 0.44 and 0.31, respectively). But no soil property factor indicated DOC variability with soil depth. Further research is needed to understand why indications of soil moisture and bulk density on DOC dynamics would differ between horizontal and vertical.
Xiao Pu; Hongguang Cheng; Mats Tysklind; Jing Xie; Lu Lu; Shengtian Yang. Indications of soil properties on dissolved organic carbon variability following a successive land use conversion. Ecological Engineering 2018, 117, 115 -119.
AMA StyleXiao Pu, Hongguang Cheng, Mats Tysklind, Jing Xie, Lu Lu, Shengtian Yang. Indications of soil properties on dissolved organic carbon variability following a successive land use conversion. Ecological Engineering. 2018; 117 ():115-119.
Chicago/Turabian StyleXiao Pu; Hongguang Cheng; Mats Tysklind; Jing Xie; Lu Lu; Shengtian Yang. 2018. "Indications of soil properties on dissolved organic carbon variability following a successive land use conversion." Ecological Engineering 117, no. : 115-119.
Dietary intake of metal(loid)s can seriously affect human health, but the levels, the bioaccumulation, sources and related health risks of As, Cd, Cr and Pb in cultivated lilies, particularly for Lilium davidii var. unicolor, remain unresolved. We collected 35 lily samples aged 1-6 years from farmlands of two types of soil (heilu soils and loessal soils) in Qilihe district in 2016 and analysed the concentrations of As, Cd, Cr and Pb in bulbs, the soil-bulb bioaccumulation and the potential sources of these elements in bulbs. Non-carcinogenic and carcinogenic risks by consuming lilies were also assessed. Concentrations of four elements decreased in the order of Cr > Pb > Cd > As, and soil-bulb BCFs in the order of BCF > BCF > BCF > BCF The Cd concentration of bulbs of lilies which grew in heilu soils was statistically higher than that of bulbs of lilies which grew in loessal soils, and the Cd concentration of bulbs of lilies aged 1-3 years was statistically higher than that of bulbs of lilies aged 4-6 years. Levels and soil-bulb BCFs of Cr and Pb of two-bulbed lilies were statistically higher than those of one-bulbed lilies. Farmyard manure may be a primary source of Cd in soil. There existed overall potential non-carcinogenic effects by exposure to the combination of four elements. Dietary intake of Cr posed carcinogenic risks to both adults and children. Non-carcinogenic and carcinogenic risks were higher for adults than children. Concluding, the edible parts of lily were significantly polluted by Cr and Pb but not by As and Cd. The number of bulbs significantly impacted concentrations and soil-bulb BCFs of Cr and Pb, but the reason for which needs further studies. Non-carcinogenic and carcinogenic risks caused by lily consumption should not be neglected.
Haixu Sun; Hongguang Cheng; Longzhun Lin; Ke Deng; Xiangfen Cui. Bioaccumulation and sources of metal(loid)s in lilies and their potential health risks. Ecotoxicology and Environmental Safety 2018, 151, 228 -235.
AMA StyleHaixu Sun, Hongguang Cheng, Longzhun Lin, Ke Deng, Xiangfen Cui. Bioaccumulation and sources of metal(loid)s in lilies and their potential health risks. Ecotoxicology and Environmental Safety. 2018; 151 ():228-235.
Chicago/Turabian StyleHaixu Sun; Hongguang Cheng; Longzhun Lin; Ke Deng; Xiangfen Cui. 2018. "Bioaccumulation and sources of metal(loid)s in lilies and their potential health risks." Ecotoxicology and Environmental Safety 151, no. : 228-235.
Adverse health effects related to accumulative cadmium (Cd) exposure have aroused widespread attention from the public in China. Knowledge on the relationships between Cd exposure and early renal effects is particularly limited for children, who are more susceptible to absorbing metals than adults. A typical Cd-polluted area of South China was selected to determine the Cd exposure and related early renal effects of the general population, including children. In total, 211 children and 806 adults were enrolled in the study. The urinary levels of Cd (U-Cd), β2-microglobulin (U-BMG), retinol binding protein (U-RBP), and N-acetyl-β-d-glucosaminidase (U-NAG) were measured. The relationship between U-Cd and ranked indicators of early renal effects was examined by multiple regression analysis. The average U-Cd ranged from 7.01 μg/g creatinine (boys) to 13.55 μg/g creatinine (women) in the Cd-polluted areas. These values are much higher than those of the control group and those that have been reported by other countries. In agreement with previous studies, environmental Cd pollution resulted in elevated Cd accumulation in the bodies of children, and it increased the concentration of NAG in their urine. Similarly, environmental Cd pollution increased NAG and BMG in the urine of adults. Multivariate models showed that the urinary excretion of BMG, RBP, and NAG was positively associated with Cd levels in the urine of both children and adults. The reference thresholds of U-Cd in relation to elevated U-BMG, U-RBP, and U-NAG were higher in children than adults after standardization for other covariates. These results reinforce the need to control and regulate the sources of environmental Cd contamination and to promote more effective risk management measures, especially for vulnerable groups.
Xiangfen Cui; Hongguang Cheng; Xuelian Liu; Elisa Giubilato; Andrea Critto; Haixu Sun; Lei Zhang. Cadmium exposure and early renal effects in the children and adults living in a tungsten-molybdenum mining areas of South China. Environmental Science and Pollution Research 2018, 25, 15089 -15101.
AMA StyleXiangfen Cui, Hongguang Cheng, Xuelian Liu, Elisa Giubilato, Andrea Critto, Haixu Sun, Lei Zhang. Cadmium exposure and early renal effects in the children and adults living in a tungsten-molybdenum mining areas of South China. Environmental Science and Pollution Research. 2018; 25 (15):15089-15101.
Chicago/Turabian StyleXiangfen Cui; Hongguang Cheng; Xuelian Liu; Elisa Giubilato; Andrea Critto; Haixu Sun; Lei Zhang. 2018. "Cadmium exposure and early renal effects in the children and adults living in a tungsten-molybdenum mining areas of South China." Environmental Science and Pollution Research 25, no. 15: 15089-15101.
Fate of nitrogen in overlying water with or without biochar addition to sediment in planted or unplanted ditch microcosms.
Qianding Cheng; Hongguang Cheng; Lu Lu; Xiao Pu; Zhenzhen Wu; Haixu Sun. Fate of nitrogen in overlying water with biochar addition to sediment in planted ditches. Environmental Science: Processes & Impacts 2017, 20, 384 -394.
AMA StyleQianding Cheng, Hongguang Cheng, Lu Lu, Xiao Pu, Zhenzhen Wu, Haixu Sun. Fate of nitrogen in overlying water with biochar addition to sediment in planted ditches. Environmental Science: Processes & Impacts. 2017; 20 (2):384-394.
Chicago/Turabian StyleQianding Cheng; Hongguang Cheng; Lu Lu; Xiao Pu; Zhenzhen Wu; Haixu Sun. 2017. "Fate of nitrogen in overlying water with biochar addition to sediment in planted ditches." Environmental Science: Processes & Impacts 20, no. 2: 384-394.
Cadmium (Cd) is one of the most serious soil contaminants in China, and it poses an increasing risk to human health as large amounts of Cd are emitted into the environment. However, knowledge about soil Cd concentrations and the human health risks of these concentrations at a national scale is limited. In this study, we conducted a review of 190 articles about soil Cd concentrations during 2001 to 2010. The study involved 146 cities in China, and we quantified the risks to human health according to different regions. The results showed that elevated Cd levels were present compared to the background value of soil in 1990, and the soil Cd concentrations in the Guangxi province exceeded even the class III Soil Environmental Quality standard, which is the limit for the normal growth of plants. The Chinese soil Cd concentrations ranged from 0.003 mg kg−1 to 9.57 mg kg−1. The soil Cd concentrations had the following trend: northwest > southwest > south central > east > northeast > north. The sources of soil Cd are mainly from smelting, mining, waste disposal, fertilizer and pesticide application, and vehicle exhaust, etc. but differentiated in various regions. The soil Cd contamination in urban areas was more serious than contamination in the agricultural areas. Currently, there is no significant non-carcinogenic risk in any of the provinces. Regarding the different exposure pathways, the dermal pathway is the primary source of soil Cd exposure, and the risk associated with this pathway is generally hundreds of times higher than the risk for an ingestion pathway. For most of the provinces, the health risk to the urban population was higher than the risk to the rural population. For each population, the carcinogenic risk was less than 10−6 in most of the provinces, except for the urban population in the Hunan province. If the other exposure pathways are fully considered, then the people in these areas may have a higher carcinogenic risk. This review provides a comprehensive assessment of soil Cd pollution in China, and it identifies policy recommendations for pollution mitigation and environmental management in the relevant regions.
Lin Wang; Xiangfen Cui; Hongguang Cheng; Fei Chen; Jiantong Wang; Xinyi Zhao; Chunye Lin; Xiao Pu. A review of soil cadmium contamination in China including a health risk assessment. Environmental Science and Pollution Research 2015, 22, 16441 -16452.
AMA StyleLin Wang, Xiangfen Cui, Hongguang Cheng, Fei Chen, Jiantong Wang, Xinyi Zhao, Chunye Lin, Xiao Pu. A review of soil cadmium contamination in China including a health risk assessment. Environmental Science and Pollution Research. 2015; 22 (21):16441-16452.
Chicago/Turabian StyleLin Wang; Xiangfen Cui; Hongguang Cheng; Fei Chen; Jiantong Wang; Xinyi Zhao; Chunye Lin; Xiao Pu. 2015. "A review of soil cadmium contamination in China including a health risk assessment." Environmental Science and Pollution Research 22, no. 21: 16441-16452.
Policy-oriented successive land use conversion intensively occurred in seasonally frozen zones of China during the past five decades. However, responses of soil carbon (C) and nitrogen (N) to land use conversion under cold temperate climates are not fully understood. The objective was to characterize C and N variations following a succession of forest, dryland and paddy. Soil cores were collected for 6 layers with a 10 cm increment from three adjacent chronosequences to determine concentrations of soil organic carbon (SOC), total nitrogen (TN), dissolved organic carbon (DOC) and alkaline hydrolysable nitrogen (HN). Analysis of variance with multivariate general linear model was operated on data sets. Significant losses of SOC and TN storages subject to land use conversion were merely confined within 0 – 10 cm layer, decreasing by 16 % and 38 % for forest to dryland and by 23 % and 43 % for forest to paddy, respectively. Cultivation also influenced SOC and TN stocks at 20 – 40 cm depth for dryland and 20 – 60 cm depth for paddy with increases by 38 Mg C ha−1 and 2.8 Mg N ha−1 for forest to dryland, and by 56 Mg C ha−1 and 4.1 Mg N ha−1 for forest to paddy, respectively. Successive land use conversion from forest to cropland affected C and N levels in deeper layers, demonstrating the high potentials of subsoil in sequestrating C and N. The extents of cultivation-induced SOC and TN redistribution along soil profile varied among different agricultural systems. DOC and HN changes interpreted SOC and TN changes with land use, presenting high involvements of soluble compartments in SOC and TN variations. The net variation in SOC/TN ratio effectively indicated C and N changes when dryland was converted to paddy.
Xiao Pu; Hongguang Cheng; Mats Tysklind; Shengtian Yang; Chunye Lin; Lu Lu; Jing Xie. Responses of soil carbon and nitrogen to successive land use conversion in seasonally frozen zones. Plant and Soil 2014, 387, 117 -130.
AMA StyleXiao Pu, Hongguang Cheng, Mats Tysklind, Shengtian Yang, Chunye Lin, Lu Lu, Jing Xie. Responses of soil carbon and nitrogen to successive land use conversion in seasonally frozen zones. Plant and Soil. 2014; 387 (1-2):117-130.
Chicago/Turabian StyleXiao Pu; Hongguang Cheng; Mats Tysklind; Shengtian Yang; Chunye Lin; Lu Lu; Jing Xie. 2014. "Responses of soil carbon and nitrogen to successive land use conversion in seasonally frozen zones." Plant and Soil 387, no. 1-2: 117-130.