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Meie Wang
State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China

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Journal article
Published: 08 March 2021 in Science of The Total Environment
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The anthropogenic background characterized by the accumulation characteristics of contaminants is recognized as an important evidence in pollution assessment and source identification in urban soil due to its less arbitrariness compared with the existing quality standards and the guidelines. A credible approach for pollution index calculation referring to anthropogenic background values (ABVs) combined with entropy weight method was developed. By the approach, the soil pollution degrees in Macau, China (one of the most densely populated region worldwide) were assessed based on the database of the heavy metals, Cd, Cu, Hg, Pb, and Zn, and high molecular weight polycyclic aromatic hydrocarbons (HMW PAHs) from 31 sites spatially distributed all over Macau. It was revealed that approximately half of the sites had no specific point source pollution. Mercury, benzo(a)anthracene (BaA), fluoranthene (FLT), and benzo(b)fluorantene (BbF), which had the highest weights were considered as the main contaminants. Macau Peninsula was identified as the critical polluted area. Then, the positive matrix factorization (PMF) coupled with ABVs as one of the data uncertainty inputs was used to identify the anthropogenic pollution sources of the contaminants. Three main anthropogenic sources with their contributions, including vehicle emissions (51.3%), use of hazard material (24.8%), and municipal or domestic waste (23.9%), could be well identified and quantified in the study area. The error estimation of the results showed that the variation of the contaminants in the derived factors were stable. The approaches which were in conformity with ABVs of soil contaminants are proved applicable in soil pollution assessment and source identification.

ACS Style

Tian Xie; Fei Lu; Meie Wang; Yuan Zhang; Changfeng Liu; Weiping Chen. The application of urban anthropogenic background to pollution evaluation and source identification of soil contaminants in Macau, China. Science of The Total Environment 2021, 778, 146263 .

AMA Style

Tian Xie, Fei Lu, Meie Wang, Yuan Zhang, Changfeng Liu, Weiping Chen. The application of urban anthropogenic background to pollution evaluation and source identification of soil contaminants in Macau, China. Science of The Total Environment. 2021; 778 ():146263.

Chicago/Turabian Style

Tian Xie; Fei Lu; Meie Wang; Yuan Zhang; Changfeng Liu; Weiping Chen. 2021. "The application of urban anthropogenic background to pollution evaluation and source identification of soil contaminants in Macau, China." Science of The Total Environment 778, no. : 146263.

Erratum
Published: 08 August 2020 in Environmental Pollution
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ACS Style

Tian Xie; Meie Wang; Chao Su; Weiping Chen. Corrigendum to “Evaluation of the natural attenuation capacity of urban residential soils with ecosystem-service performance index (EPX) and entropy-weight methods” [Environ. Pollut. 238 (2018) 222–229]. Environmental Pollution 2020, 265, 115333 .

AMA Style

Tian Xie, Meie Wang, Chao Su, Weiping Chen. Corrigendum to “Evaluation of the natural attenuation capacity of urban residential soils with ecosystem-service performance index (EPX) and entropy-weight methods” [Environ. Pollut. 238 (2018) 222–229]. Environmental Pollution. 2020; 265 ():115333.

Chicago/Turabian Style

Tian Xie; Meie Wang; Chao Su; Weiping Chen. 2020. "Corrigendum to “Evaluation of the natural attenuation capacity of urban residential soils with ecosystem-service performance index (EPX) and entropy-weight methods” [Environ. Pollut. 238 (2018) 222–229]." Environmental Pollution 265, no. : 115333.

Journal article
Published: 05 May 2020 in Journal of Environmental Sciences
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It is widely acknowledged that a simplified and robust approach to evaluating thecombined effects of chemical mixtures is critical for ecological risk assessment (ERA) of contaminated soil. The earthworm (Eisenia fetida) was used as a model to study the combined effects of polymetallic contamination and the herbicide siduron in field soil using a microcosm experiment. The responses of multiple biomarkers, including the activities of catalase (CAT), superoxide dismutase (SOD), glutathione reductase (GR) and acetylcholine esterase (AChE), the concentrations of glycogen, soluble protein (SP), malonaldehyde (MDA), and metallothionein (MT), and the neutral red uptake test (NRU), were investigated. Multivariate analysis, Principal Component Analysis (PCA) and Spearman's Rank Correlations analysis (BVSTEP) revealed that the activities of AChE and CAT and the NRU content were the prognostic biomarkers capturing the minimum data set of all the variables. Internal Cd (tissue Cd) in earthworms was closely related to the health status of worms under combined contamination of heavy metals and siduron. The integrated effect (Emix) calculated based on the activities of AChE and CAT and NRU content using the stress index method had significantly linear regression with internal Cd (p<0.01). Emix(10), Emix(20), and Emix(50) were then calculated, at 1.27, 1.63 and 2.71 mg/kg dry weight, respectively. It could be concluded that a bioassay-based approach incorporating multivariate analysis and internal dose was pragmatic and applicable to evaluating combined effects of chemical mixtures in soils under the guidance of the top-down evaluation concept of combined toxicity.

ACS Style

Xuzhi Li; Meie Wang; Rong Jiang; Liping Zheng; Weiping Chen. Evaluation of joint toxicity of heavy metals and herbicide mixtures in soils to earthworms (Eisenia fetida). Journal of Environmental Sciences 2020, 94, 137 -146.

AMA Style

Xuzhi Li, Meie Wang, Rong Jiang, Liping Zheng, Weiping Chen. Evaluation of joint toxicity of heavy metals and herbicide mixtures in soils to earthworms (Eisenia fetida). Journal of Environmental Sciences. 2020; 94 ():137-146.

Chicago/Turabian Style

Xuzhi Li; Meie Wang; Rong Jiang; Liping Zheng; Weiping Chen. 2020. "Evaluation of joint toxicity of heavy metals and herbicide mixtures in soils to earthworms (Eisenia fetida)." Journal of Environmental Sciences 94, no. : 137-146.

Journal article
Published: 20 December 2019 in Science of The Total Environment
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Adding limestone into acidic paddy soils might reduce cadmium (Cd) accumulation in rice plants and the harvested grains but with inconsistent results in the field practice. We conducted three experiments of different field scales, including small-plots, multi-location trial, and large-scale field samplings of rice grown in a major production region of southern China, to investigate whether liming could sustainably limit the Cd phytoavailability to rice. Forty-eight physical, chemical, and biological attributes associated with paired soils and plants were collectively analyzed. Rice Cd uptake was significantly reduced when moderate dosage (2.25–3 t ha−1) of liming was present in the soils. The limes decreased rice Cd uptake by reducing the Cd concentrations of soil solution phase and regulating Ca2+ and Cd2+ competitions for absorption sites at root surfaces. Soil Zn hardly any effect on rice Cd uptake. Rice Cd uptake was suppressed at the higher rates of liming (4.5–9 t ha−1) due to the heavy loss of soil labile Mn. The tendencies of over compensating were soil-, plant-, and climate-dependent and were estimated by a transfer function and the risks were characterized using probabilistic analysis. The sustainable doses of limestone that reduced grain Cd accumulation, but did not compromise yield, or disrupt the rice rhizosphere was 3 t ha−1 annually incorporated two weeks before the seedlings were transplanted.

ACS Style

Yang Yang; Meie Wang; Andrew C. Chang; Yanling Li; Weiping Chen; Weiguang Yang. Inconsistent effects of limestone on rice cadmium uptake: Results from multi-scale field trials and large-scale investigation. Science of The Total Environment 2019, 709, 136226 .

AMA Style

Yang Yang, Meie Wang, Andrew C. Chang, Yanling Li, Weiping Chen, Weiguang Yang. Inconsistent effects of limestone on rice cadmium uptake: Results from multi-scale field trials and large-scale investigation. Science of The Total Environment. 2019; 709 ():136226.

Chicago/Turabian Style

Yang Yang; Meie Wang; Andrew C. Chang; Yanling Li; Weiping Chen; Weiguang Yang. 2019. "Inconsistent effects of limestone on rice cadmium uptake: Results from multi-scale field trials and large-scale investigation." Science of The Total Environment 709, no. : 136226.

Journal article
Published: 25 November 2019 in Ecological Indicators
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The functional stability (FS) of soil microbial communities contributes in a fundamental way to maintaining soil ecosystem functioning and services, when environmental disturbances, e.g. contamination arise. While, the mechanisms enabling soil microbial communities to remain stable under stresses are not clear. Thus, this work aims at investigating changes in integrated microbial FS under long-term stress of heavy metals (FSHM) and subsequent herbicide siduron (FSsid). A second objective is to determine which factors affect the FS of microbial communities. The results show that the overall function, alpha diversity, and composition of microbial communities are affected significantly by the presence of heavy metals and herbicide siduron. The loss of biodiversity induced by heavy metal does not appear to impair the functions of microbial communities or their functional stability in response to the additional stress of siduron. Whereas, the change of microbial community composition, e.g., the decrease of the gram positive/gram negative ratio triggered by the adaption and tolerance process to the pre-disturbance of heavy metals, is the central factor governing FS. Soil organic matter content, the concentration of heavy metals and the C/N value are the dominant abiotic factors affecting FS through direct effect on microbial activities involved in functional processes and indirect effect on microbial community composition. Our study highlights that the structural composition of soil microbial community is more important than the diversity of microbial species to explain the functional stability of microbial communities under chemical stresses, and that a number of soil properties and the disturbance history also play a decisive role. Thus, the functional stability of soil microbial community can be used as a feasible and pragmatic indicator to assess the overarching responses to environmental stresses at ecological system level.

ACS Style

Rong Jiang; Meie Wang; Weiping Chen; Xuzhi Li; María Balseiro-Romero. Changes in the integrated functional stability of microbial community under chemical stresses and the impacting factors in field soils. Ecological Indicators 2019, 110, 105919 .

AMA Style

Rong Jiang, Meie Wang, Weiping Chen, Xuzhi Li, María Balseiro-Romero. Changes in the integrated functional stability of microbial community under chemical stresses and the impacting factors in field soils. Ecological Indicators. 2019; 110 ():105919.

Chicago/Turabian Style

Rong Jiang; Meie Wang; Weiping Chen; Xuzhi Li; María Balseiro-Romero. 2019. "Changes in the integrated functional stability of microbial community under chemical stresses and the impacting factors in field soils." Ecological Indicators 110, no. : 105919.

Journal article
Published: 10 September 2019 in Environmental Pollution
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Assessing the ecological risk of combined pollution, especially from a holistic perspective with the consideration of the overarching functions of soil ecosystem, is crucial and beneficial to the improvement of ecological risk assessment (ERA) framework. In this study, four soils with similar physicochemical properties but contrasting heavy metals contamination levels were selected to explore changes in the integrated functional sensitivity (MSI), resistance (MRS) and resilience (MRL) of soil microbial communities subjected to herbicide siduron, based on which the ecological risk of the accumulation of siduron in the four studied soils were evaluated. The results suggested that the microbial biomass carbon, activity of denitrification enzyme and nitrogenase were indicative of MSI and MRS, and the same three parameters plus soil basal respiration were indicative of MRL. Significant dose-effect relationships between siduron residues in soils and MSI, MRS and MRL under combined pollution were observed. Heavy metal polluted soils showed higher sensitivity and lower resistance to the additional disturbance of herbicide siduron due to the lower microbial biomass, while the resilience of heavy metal polluted soils was much higher due to the pre-adaption to the chemical stresses. The quantifiable indicator microbial functional stability was incorporated in the framework of ERA and the results showed that the accumulation of siduron in the studied soils could exhibit potential harm to the integrated functional stability of soil microbial community. Thus, this work provides insights into the application of integrated function of soil microbial community into the framework of ERA.

ACS Style

Rong Jiang; Meie Wang; Weiping Chen; Xuzhi Li; María Balseiro-Romero; Philippe C. Baveye. Ecological risk of combined pollution on soil ecosystem functions: Insight from the functional sensitivity and stability. Environmental Pollution 2019, 255, 113184 .

AMA Style

Rong Jiang, Meie Wang, Weiping Chen, Xuzhi Li, María Balseiro-Romero, Philippe C. Baveye. Ecological risk of combined pollution on soil ecosystem functions: Insight from the functional sensitivity and stability. Environmental Pollution. 2019; 255 ():113184.

Chicago/Turabian Style

Rong Jiang; Meie Wang; Weiping Chen; Xuzhi Li; María Balseiro-Romero; Philippe C. Baveye. 2019. "Ecological risk of combined pollution on soil ecosystem functions: Insight from the functional sensitivity and stability." Environmental Pollution 255, no. : 113184.

Journal article
Published: 01 August 2018 in Chemosphere
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Siduron is a widely used herbicide in urban lawn and has been frequently detected in urban and suburban surface water. However, characteristics of its environmental behavior in soil are seldom reported. The combined pollution of heavy metals, especially for Cu, Pb, Cd, Zn and siduron would be common because of the widely existence of heavy metal pollution in urban soils. In this study, four soils with similar physicochemical properties but different levels of preexisting heavy metals were selected to investigate the adsorption and successive desorption of siduron using batch experiments. The results revealed a low sorption of siduron to all the tested soils. The organic carbon normalized distribution coefficient (K) of siduron in the studied soils ranged from 117 to 137 L kg and was not significantly correlated to heavy metal levels. No apparent desorption hysteresis was observed with the hysteresis index (HI) ranging from 0.921 to 1.11. More than 50% of the sorbed siduron was readily released into soil solution. Results suggested that siduron was highly mobile and bioavailable in the studied soils. Significant correlation was found between adsorption/desorption parameters and soil organic carbon (SOC) in four soils. soil organic matter was thus considered as the dominant factor determining the adsorption and desorption of siduron in soils. Different from most of reported studies conducted by laboratory-amended soils, the influence of preexisting heavy metals on the adsorption-desorption of siduron was not significant in this work.

ACS Style

Rong Jiang; Meie Wang; Weiping Chen. Characterization of adsorption and desorption of lawn herbicide siduron in heavy metal contaminated soils. Chemosphere 2018, 204, 483 -491.

AMA Style

Rong Jiang, Meie Wang, Weiping Chen. Characterization of adsorption and desorption of lawn herbicide siduron in heavy metal contaminated soils. Chemosphere. 2018; 204 ():483-491.

Chicago/Turabian Style

Rong Jiang; Meie Wang; Weiping Chen. 2018. "Characterization of adsorption and desorption of lawn herbicide siduron in heavy metal contaminated soils." Chemosphere 204, no. : 483-491.

Journal article
Published: 27 July 2018 in Science of The Total Environment
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Agrochemicals and heavy metals are widespread contaminants in urban soil and could co-exist as mixture, which could cause unexpected risk to terrestrial organism. To assess the joint effect of herbicide Siduron and Cd, a battery of sub-lethal biomarkers was studied using earthworm ecotoxicological assay. Most selected biomarkers appeared significant but complicated responses with the increasing concentration of contaminants after 28-day exposure. In order to quantify the overall effect of the mixture contaminants, Biomarker Response Index (BRI) was used to integrate the multiple responses. Concentration Addition Index (CAI) and Effect Addition Index (EAI) were also introduced to assess types of joint effect. Results showed significantly dose-effect responses between BRI and contaminant exposure concentrations. The integrated toxicity increased obviously under joint treatments of Siduron and Cd compared to their individual treatments. According to CAI, a clear antagonism was observed at relatively lower effects and gradually transformed to slight synergism with an increase of effects, while EAI showed the joint effect of addition at the whole range of effect levels. Thus, compared to the simple analysis of those complicated responses, BRI is an effective method to determine the integrated toxicity of mixture and its combination with joint effect indices (CAI and EAI) provides more worthy risk assessment on toxicity interaction among compounds.

ACS Style

Xuzhi Li; Meie Wang; Weiping Chen; Rong Jiang. Evaluation of combined toxicity of Siduron and cadmium on earthworm (Eisenia fetida) using Biomarker Response Index. Science of The Total Environment 2018, 646, 893 -901.

AMA Style

Xuzhi Li, Meie Wang, Weiping Chen, Rong Jiang. Evaluation of combined toxicity of Siduron and cadmium on earthworm (Eisenia fetida) using Biomarker Response Index. Science of The Total Environment. 2018; 646 ():893-901.

Chicago/Turabian Style

Xuzhi Li; Meie Wang; Weiping Chen; Rong Jiang. 2018. "Evaluation of combined toxicity of Siduron and cadmium on earthworm (Eisenia fetida) using Biomarker Response Index." Science of The Total Environment 646, no. : 893-901.

Journal article
Published: 01 July 2018 in Environmental Pollution
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Soils provide the service of attenuating and detoxifying pollutants. Such ability, natural attenuation capacity (NAC), is one of the most important ecosystem services for urban soils. We improved the ecosystem-service performance index (EPX) model by integrating with entropy weight determination method to evaluate the NAC of residential soils in Beijing. Eleven parameters related to the soil process of pollutants fate and transport were selected and 115 residential soil samples were collected. The results showed that bulk density, microbial functional diversity and soil organic matter had high weights in the NAC evaluation. Urban socio-economic indicators of residential communities such as construction age, population density and property & management fee could be employed in kinetic fittings of NAC. It could be concluded urbanization had significant impacts on NAC in residential soils. The improved method revealed reasonable and practical results, and it could be served as a potential measure for application to other quantitative assessment.

ACS Style

Tian Xie; Meie Wang; Chao Su; Weiping Chen. Evaluation of the natural attenuation capacity of urban residential soils with ecosystem-service performance index (EPX) and entropy-weight methods. Environmental Pollution 2018, 238, 222 -229.

AMA Style

Tian Xie, Meie Wang, Chao Su, Weiping Chen. Evaluation of the natural attenuation capacity of urban residential soils with ecosystem-service performance index (EPX) and entropy-weight methods. Environmental Pollution. 2018; 238 ():222-229.

Chicago/Turabian Style

Tian Xie; Meie Wang; Chao Su; Weiping Chen. 2018. "Evaluation of the natural attenuation capacity of urban residential soils with ecosystem-service performance index (EPX) and entropy-weight methods." Environmental Pollution 238, no. : 222-229.

Journal article
Published: 01 June 2018 in Ecotoxicology and Environmental Safety
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Ecological risk assessment (ERA) of polymetallic contamination in soils has caused extensive solicitude. However, objective and feasible methods suitable for soil ERA are limited. Therefore, in this study, a multidisciplinary and quantitative weight of evidence approach (WOE) specific to soil ecosystems was developed based on the previous WOE for aquatic ecosystems. The framework consisted of four lines of evidence (LOEs): DTPA-extractable heavy metal in soils, bioaccumulation in earthworms, integration of biomarker responses and expected community effect (multi-substance Potentially Affected Fraction, msPAF). These four LOEs were initially evaluated by each hazard quotient (HQ) of them based on the ratio to the reference (RTR) of each parameter. Then, Environmental risk index (EnvRI) integrated by HQs with different weights was calculated. At last, three sites, one for reference (N1) and two for contaminated soils (N2 and N3) were chosen to apply the modified WOE approach. Results showed that heavily contaminated site, N3 had higher HQ classification for each LOE and its EnvRI was classified as Major levels, while the EnvRI of N2 was assigned into Moderate. What's more, HQ of biomarker response (HQbiomarker) integrated by RTRs of biomarkers increased gradiently with the increase of heavy metal levels in soils though irregular changes were observed for most of those biomarkers. Overall, our results indicated that the quantitative WOE framework specific to soil ERA had the advantage of obtaining a comprehensive and objective risk assessment.

ACS Style

Xuzhi Li; Meie Wang; Weiping Chen; Herman Uwizeyimana. Ecological risk assessment of polymetallic sites using weight of evidence approach. Ecotoxicology and Environmental Safety 2018, 154, 255 -262.

AMA Style

Xuzhi Li, Meie Wang, Weiping Chen, Herman Uwizeyimana. Ecological risk assessment of polymetallic sites using weight of evidence approach. Ecotoxicology and Environmental Safety. 2018; 154 ():255-262.

Chicago/Turabian Style

Xuzhi Li; Meie Wang; Weiping Chen; Herman Uwizeyimana. 2018. "Ecological risk assessment of polymetallic sites using weight of evidence approach." Ecotoxicology and Environmental Safety 154, no. : 255-262.

Journal article
Published: 01 June 2018 in Science of The Total Environment
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Combined pollution of agrichemicals and heavy metals in urban lawn soils were commonly observed throughout the world, and the co-existed two chemicals could interact with each other both in environment behavior and toxic effect. However, little has been reported on the ecological risk of their combined pollution, especially in field due to lack of systematic methodology. In this study, four soils (C, N1, N2, N3) from two public parks in Beijing, China, with similar properties but contrasting heavy metal contaminated level were chosen to assess the ecological risks of co-existed herbicide siduron and heavy metals. Environmental behaviors of siduron in studied soils were investigated with batch experiments in lab, based on which the environmental exposure level of siduron was simulated with HYDRUS-1D. Results suggested that soil organic matter (SOM) rather than the co-existed heavy metals was the dominant factor affecting the fate and the accumulation of siduron in soils. Soil N2 with the highest SOM, showed the strongest tendency to retain siduron among the studied soils. Significant joint effect of siduron and heavy metals on cucumber root elongation was observed through lab experiments. Thus, the joint toxicity of siduron and heavy metals were calculated based on single toxicology data of them using independent action (IA) and concentration addition (CA) model. Then, the predicted no effect concentration (PNECsoil) of siduron was calculated with equilibrium partitioning method and extrapolation techniques. The PNECsoil of siduron was the lowest in heaviest heavy metal contaminated soil N3. The risk characterization ratios (RCR) of siduron in four soils were all >1. The highest RCR of siduron in soil N3 suggested that it was the joint toxicity of siduron and heavy metals to organisms determining the ecological risks of siduron in combined polluted soils.

ACS Style

Rong Jiang; Meie Wang; Weiping Chen; Xuzhi Li. Ecological risk evaluation of combined pollution of herbicide siduron and heavy metals in soils. Science of The Total Environment 2018, 626, 1047 -1056.

AMA Style

Rong Jiang, Meie Wang, Weiping Chen, Xuzhi Li. Ecological risk evaluation of combined pollution of herbicide siduron and heavy metals in soils. Science of The Total Environment. 2018; 626 ():1047-1056.

Chicago/Turabian Style

Rong Jiang; Meie Wang; Weiping Chen; Xuzhi Li. 2018. "Ecological risk evaluation of combined pollution of herbicide siduron and heavy metals in soils." Science of The Total Environment 626, no. : 1047-1056.

Journal article
Published: 24 May 2018 in International Journal of Environmental Research and Public Health
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Heavy metal contamination in roadside soil due to traffic emission has been recognized for a long time. However, seldom has been reported regarding identification of critical factors influencing the accumulation of heavy metals in urban roadside soils due to the frequent disturbances such as the repair of damaged roads and green belt maintanance. Heavy metals in the roadside soils of 45 roads in Xihu district, Hangzhou city were investigated. Results suggested the accumulation of Cu, Pb, Cd, Cr, and Zn in roadside soil was affected by human activity. However, only two sites had Pb and Zn excessing the standards for residential areas, respectively, according to Chinese Environmental Quality Standards for soils. The concentrations of Cu, Pb, Cd, and Zn were significantly and positively correlated to soil pH and organic matter. An insignificant correlation between the age of the roads or vegetation cover types and the concentration of heavy metals was found although they were reported closely relating to the accumulation of heavy metals in roadside soils of highways. The highest Pb, Cd, and Cr taking place in sites with heavy traffic and significant differences in the concentrations of Cu, Pb, Cd, and Zn among the different categories of roads suggested the contribution of traffic intensity. However, it was difficult to establish a quantitative relationship between traffic intensity and the concentrations of heavy metals in the roadside soil. It could be concluded that impaction of traffic emission on the accumulation of heavy metals in roadside soils in urban area was slight and soil properties such as pH and organic matters were critical factors influencing the retention of heavy metals in soils.

ACS Style

Meie Wang; Haizhen Zhang. Accumulation of Heavy Metals in Roadside Soil in Urban Area and the Related Impacting Factors. International Journal of Environmental Research and Public Health 2018, 15, 1064 .

AMA Style

Meie Wang, Haizhen Zhang. Accumulation of Heavy Metals in Roadside Soil in Urban Area and the Related Impacting Factors. International Journal of Environmental Research and Public Health. 2018; 15 (6):1064.

Chicago/Turabian Style

Meie Wang; Haizhen Zhang. 2018. "Accumulation of Heavy Metals in Roadside Soil in Urban Area and the Related Impacting Factors." International Journal of Environmental Research and Public Health 15, no. 6: 1064.

Journal article
Published: 01 February 2018 in Journal of Environmental Sciences
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Urbanization processes affect the accumulation of heavy metals in urban soils. Effects of urbanization on heavy metal accumulation in soils were studied using Beijing as an example. It has been suggested that the ecological function of vegetation covers shifting from natural to agricultural settings and then to urban greenbelts could increase the zinc (Zn) concentrations of soils successively. The Zn concentration of urban soils was significantly correlated to the percentage of the impervious land surface at the 500m×500m spatial scale. For urban parks, the age or years since the development accounted for 80% of the variances of cadmium (Cd) and Zn in soils. The population density, however, did not affect the heavy metal distributions in urban soils. To conclude, the urban age turned out to be a notable factor in quantifying heavy metal accumulation in urban soils.

ACS Style

Meie Wang; Rui Liu; Weiping Chen; Chi Peng; Bernd Markert. Effects of urbanization on heavy metal accumulation in surface soils, Beijing. Journal of Environmental Sciences 2018, 64, 328 -334.

AMA Style

Meie Wang, Rui Liu, Weiping Chen, Chi Peng, Bernd Markert. Effects of urbanization on heavy metal accumulation in surface soils, Beijing. Journal of Environmental Sciences. 2018; 64 ():328-334.

Chicago/Turabian Style

Meie Wang; Rui Liu; Weiping Chen; Chi Peng; Bernd Markert. 2018. "Effects of urbanization on heavy metal accumulation in surface soils, Beijing." Journal of Environmental Sciences 64, no. : 328-334.

Review
Published: 01 October 2017 in Environmental Toxicology and Pharmacology
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Earthworms are the key soil organisms, contribute to many positive ecological services that could be degraded by pesticides and other soil pollutants such as heavy metals. Chemicals usually occur as mixtures in the environmental systems which can lead synergistic effects. The assessment and characterization of soil pollutants that effects risks are very difficult due to the complexity of soil matrix, poor understanding about the fate and effects of chemical combinations like pesticide and metal mixtures in terrestrial systems, and scarcity of toxicological data on mixtures of pollutants. In this review we summarized the current studies on individual and joint effects of pesticides and metals on earthworms and indicate the mixture that cause the synergistic interactions. The review explores the methods and models used previously to evaluate the toxicity of chemical mixtures, and suggests the perspective approaches for a better knowledge of combine effects as well as research methods The summarized report indicates that pesticide and metal mixtures at all organization levels affect the earthworms negatively. Whereas, the combined pollution generated by mixtures of pesticides and metal ions could induce the DNA damage, disruption in enzyme activities, reduction in individual survival, production and growth rate, change in individual behavior such as feeding rate, and decrease in the total earthworm community biomass and density. Among the pesticides organophosphates were identified the most toxic pesticides causing the synergistic effects. The findings indicate the scarcity of toxicological data concerning the assessment of pesticide and metal mixtures at genome level; while the mechanisms causing synergism were still not sufficiently explored.

ACS Style

Herman Uwizeyimana; Meie Wang; Weiping Chen; Kifayatullah Khan. The eco-toxic effects of pesticide and heavy metal mixtures towards earthworms in soil. Environmental Toxicology and Pharmacology 2017, 55, 20 -29.

AMA Style

Herman Uwizeyimana, Meie Wang, Weiping Chen, Kifayatullah Khan. The eco-toxic effects of pesticide and heavy metal mixtures towards earthworms in soil. Environmental Toxicology and Pharmacology. 2017; 55 ():20-29.

Chicago/Turabian Style

Herman Uwizeyimana; Meie Wang; Weiping Chen; Kifayatullah Khan. 2017. "The eco-toxic effects of pesticide and heavy metal mixtures towards earthworms in soil." Environmental Toxicology and Pharmacology 55, no. : 20-29.

Journal article
Published: 01 November 2015 in Huan jing ke xue= Huanjing kexue
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ACS Style

Mei-E Wang; Chi Peng; Wei-Ping Chen. [Effects of Rice Cultivar and Typical Soil Improvement Measures on the Uptake of Cd in Rice Grains]. Huan jing ke xue= Huanjing kexue 2015, 36, 1 .

AMA Style

Mei-E Wang, Chi Peng, Wei-Ping Chen. [Effects of Rice Cultivar and Typical Soil Improvement Measures on the Uptake of Cd in Rice Grains]. Huan jing ke xue= Huanjing kexue. 2015; 36 (11):1.

Chicago/Turabian Style

Mei-E Wang; Chi Peng; Wei-Ping Chen. 2015. "[Effects of Rice Cultivar and Typical Soil Improvement Measures on the Uptake of Cd in Rice Grains]." Huan jing ke xue= Huanjing kexue 36, no. 11: 1.

Review
Published: 01 March 2014 in Ying yong sheng tai xue bao = The journal of applied ecology
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ACS Style

Mei-E Wang; Wei-Ping Chen; Chi Peng. [Urban ecological risk assessment: a review]. Ying yong sheng tai xue bao = The journal of applied ecology 2014, 25, 1 .

AMA Style

Mei-E Wang, Wei-Ping Chen, Chi Peng. [Urban ecological risk assessment: a review]. Ying yong sheng tai xue bao = The journal of applied ecology. 2014; 25 (3):1.

Chicago/Turabian Style

Mei-E Wang; Wei-Ping Chen; Chi Peng. 2014. "[Urban ecological risk assessment: a review]." Ying yong sheng tai xue bao = The journal of applied ecology 25, no. 3: 1.

Review
Published: 01 May 2013 in Ying yong sheng tai xue bao = The journal of applied ecology
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ACS Style

Wei-Ping Chen; Si-Dan Lü; Mei-E Wang; Wen-Tao Jiao. [Effects of reclaimed water recharge on groundwater quality: a review]. Ying yong sheng tai xue bao = The journal of applied ecology 2013, 24, 1 .

AMA Style

Wei-Ping Chen, Si-Dan Lü, Mei-E Wang, Wen-Tao Jiao. [Effects of reclaimed water recharge on groundwater quality: a review]. Ying yong sheng tai xue bao = The journal of applied ecology. 2013; 24 (5):1.

Chicago/Turabian Style

Wei-Ping Chen; Si-Dan Lü; Mei-E Wang; Wen-Tao Jiao. 2013. "[Effects of reclaimed water recharge on groundwater quality: a review]." Ying yong sheng tai xue bao = The journal of applied ecology 24, no. 5: 1.

Journal article
Published: 01 December 2012 in Huan jing ke xue= Huanjing kexue
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ACS Style

Mei-E Wang; Wei-Ping Chen; Wen-Tao Jiao. [Model simulation of the transportation, transformation and accumulation of synthetic musks in soils input through recycle water irrigation]. Huan jing ke xue= Huanjing kexue 2012, 33, 1 .

AMA Style

Mei-E Wang, Wei-Ping Chen, Wen-Tao Jiao. [Model simulation of the transportation, transformation and accumulation of synthetic musks in soils input through recycle water irrigation]. Huan jing ke xue= Huanjing kexue. 2012; 33 (12):1.

Chicago/Turabian Style

Mei-E Wang; Wei-Ping Chen; Wen-Tao Jiao. 2012. "[Model simulation of the transportation, transformation and accumulation of synthetic musks in soils input through recycle water irrigation]." Huan jing ke xue= Huanjing kexue 33, no. 12: 1.

Journal article
Published: 01 December 2012 in Huan jing ke xue= Huanjing kexue
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ACS Style

Zhong-Ming Zhao; Wei-Ping Chen; Wen-Tao Jiao; Mei-E Wang. [Modeling the Cd accumulation in agricultural soil irrigated with reclaimed water]. Huan jing ke xue= Huanjing kexue 2012, 33, 1 .

AMA Style

Zhong-Ming Zhao, Wei-Ping Chen, Wen-Tao Jiao, Mei-E Wang. [Modeling the Cd accumulation in agricultural soil irrigated with reclaimed water]. Huan jing ke xue= Huanjing kexue. 2012; 33 (12):1.

Chicago/Turabian Style

Zhong-Ming Zhao; Wei-Ping Chen; Wen-Tao Jiao; Mei-E Wang. 2012. "[Modeling the Cd accumulation in agricultural soil irrigated with reclaimed water]." Huan jing ke xue= Huanjing kexue 33, no. 12: 1.

Journal article
Published: 01 December 2012 in Huan jing ke xue= Huanjing kexue
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ACS Style

Si-Dan Lü; Wei-Ping Chen; Mei-E Wang. [Simulation of effect of irrigation with reclaimed water on soil water-salt movement by ENVIRO-GRO model]. Huan jing ke xue= Huanjing kexue 2012, 33, 1 .

AMA Style

Si-Dan Lü, Wei-Ping Chen, Mei-E Wang. [Simulation of effect of irrigation with reclaimed water on soil water-salt movement by ENVIRO-GRO model]. Huan jing ke xue= Huanjing kexue. 2012; 33 (12):1.

Chicago/Turabian Style

Si-Dan Lü; Wei-Ping Chen; Mei-E Wang. 2012. "[Simulation of effect of irrigation with reclaimed water on soil water-salt movement by ENVIRO-GRO model]." Huan jing ke xue= Huanjing kexue 33, no. 12: 1.