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Antimony (Sb), a priority pollutant listed by the U.S. Environmental Protection Agency (USEPA), can cause adverse effects on human health, with particular impacts on skin, eyes, gastrointestinal tract, and respiratory system. In this study, a database of Sb concentrations in the global atmosphere was developed through a survey of measurements published in more than 600 articles, which was then used to assess the health risks of Sb exposure based on a USEPA assessment model. Most measurements showed Sb concentrations of less than ∼10 ng m–3, but those at several contaminated sites exhibited Sb concentrations of more than 100 ng m–3. For measurements conducted in urban environments, Sb concentrations in the total suspended particles (TSP) and particles of less than 10 (PM10) or 2.5 μm (PM2.5) were the highest in Asia, followed by Europe, South America, and North America. Sb concentrations were generally higher in winter and fall than during other seasons in TSP and PM10 samples. A significant correlation was observed between Sb and As in TSP and PM2.5 on a global scale. Sb was mainly derived from anthropogenic sources, especially traffic emission, industrial emission, and fossil combustion. Hazard quotients (HQ) of Sb in TSP, PM10, and PM2.5 were higher for children than adults because of their lighter body weight, inferior physical resistance, and higher ingestion probability. The global database for atmospheric Sb concentrations demonstrates a relatively low noncarcinogenic risk in most regions. Long-term monitoring is still required to identify the sources and growth potentials of Sb so that effective control policies can be established.
Jiali Jiang; Yunjie Wu; Guangyi Sun; Leiming Zhang; ZhongGen Li; Jonas Sommar; Heng Yao; Xinbin Feng. Characteristics, Accumulation, and Potential Health Risks of Antimony in Atmospheric Particulate Matter. ACS Omega 2021, 6, 9460 -9470.
AMA StyleJiali Jiang, Yunjie Wu, Guangyi Sun, Leiming Zhang, ZhongGen Li, Jonas Sommar, Heng Yao, Xinbin Feng. Characteristics, Accumulation, and Potential Health Risks of Antimony in Atmospheric Particulate Matter. ACS Omega. 2021; 6 (14):9460-9470.
Chicago/Turabian StyleJiali Jiang; Yunjie Wu; Guangyi Sun; Leiming Zhang; ZhongGen Li; Jonas Sommar; Heng Yao; Xinbin Feng. 2021. "Characteristics, Accumulation, and Potential Health Risks of Antimony in Atmospheric Particulate Matter." ACS Omega 6, no. 14: 9460-9470.
Indigenous zinc smelting (IZS) is a backward technique that releases a great deal of heavy metal(loid)s into the environment. However, the contamination of heavy metal(loid)s in ground dust and the associated health risks in such areas are poorly known. In this study, a former IZS area in Guizhou, China, was surveyed during 2008–2018 with 15 elements (Ag, As, Bi, Cd, Co, Cr, Cu, Hg, In, Ni, Pb, Sb, Sn, Tl, Zn) being analyzed. The results indicate that most elements (e.g., Ag, As, Cd, Cu, Pb, Sb, Sn, Zn) in ground dust decreased significantly after the cessation of the IZS in 2006; nevertheless, some elements still remained at relatively high levels in 2018, e.g., Pb (average: 762 ± 647 mg/kg), Zn (average: 1,287 ± 753 mg/kg), Cd (average: 7.76 ± 5.06 mg/kg), and As (average: 41.9 ± 34.8 mg/kg), indicating they might come from the local contaminated soils, slag residues and smelting potteries. In terms of the impacts on human health, children have both higher non-carcinogenic and carcinogenic risks than that of adults, with the latter subpopulation having a lower risk than the threshold values. Pb and As were the two elements with the highest non-carcinogenic risk for children, the hazard index of local children was still higher than the threshold of 1 (e.g., 1.43 for As, 2.09 for Pb) in 2018. The carcinogenic risk of As exposure to children dropped more than two times to 6.42 × 10−7 in 2018, which falls below the tolerable range (10−6–10−4). This study revealed that although the concentration of heavy metal(loid)s in ground dust and linked health risk in the IZS area has reduced dramatically after the cessation of IZS, continued removal of slag residues and smelting potteries is necessary for further decreasing the human health risk.
Shan Li; Xiangyang Bi; ZhongGen Li; Heng Wang; Xinyu Li; Xinbin Feng; Guangyi Sun; Ji Chen; Bo Meng. Heavy Metal(loid)s Contamination in Ground Dust and Associated Health Risks at a Former Indigenous Zinc Smelting Area. International Journal of Environmental Research and Public Health 2021, 18, 893 .
AMA StyleShan Li, Xiangyang Bi, ZhongGen Li, Heng Wang, Xinyu Li, Xinbin Feng, Guangyi Sun, Ji Chen, Bo Meng. Heavy Metal(loid)s Contamination in Ground Dust and Associated Health Risks at a Former Indigenous Zinc Smelting Area. International Journal of Environmental Research and Public Health. 2021; 18 (3):893.
Chicago/Turabian StyleShan Li; Xiangyang Bi; ZhongGen Li; Heng Wang; Xinyu Li; Xinbin Feng; Guangyi Sun; Ji Chen; Bo Meng. 2021. "Heavy Metal(loid)s Contamination in Ground Dust and Associated Health Risks at a Former Indigenous Zinc Smelting Area." International Journal of Environmental Research and Public Health 18, no. 3: 893.
In agricultural lands with selenium (Se) deficiency, bioavailability of Se in plants is low. Residents from large-scale agricultural production areas with Se deficiency often suffer from endemic diseases because of consumption of agricultural products lacking in Se. One such area in Northeast China where Keshan disease and Kashin–Beck disease originated, was selected for investigating the geochemistry, influencing factors, and risks of Se in the agroecosystems. Analysis of field samples indicates that the Se deficiency in soil is significantly reduced compared with that of several decades ago, and 62.6% of soils are now Se-sufficient in the southern Songnen Plain. However, Se in crop products remains low due to weak soil-plant transfer, resulting in high risks of Se deficiency related diseases in the rural population of this area. Structural equation modeling, principal component analysis, and other statistical analyses revealed that climate conditions and soil physical and chemical properties are the key factors influencing the spatial distribution of soil Se. Extensive use of agricultural fertilizers may indirectly inhibit the migration of Se from soil to plants. Ensuring sufficient Se contents in agricultural products to meet the minimum daily requirements of residents remains a challenge in Se-deficient areas, especially in the increased agricultural production environment in China.
Chenmeng Yang; Heng Yao; Yunjie Wu; Guangyi Sun; Wen Yang; ZhongGen Li; Lihai Shang. Status and risks of selenium deficiency in a traditional selenium-deficient area in Northeast China. Science of The Total Environment 2020, 762, 144103 .
AMA StyleChenmeng Yang, Heng Yao, Yunjie Wu, Guangyi Sun, Wen Yang, ZhongGen Li, Lihai Shang. Status and risks of selenium deficiency in a traditional selenium-deficient area in Northeast China. Science of The Total Environment. 2020; 762 ():144103.
Chicago/Turabian StyleChenmeng Yang; Heng Yao; Yunjie Wu; Guangyi Sun; Wen Yang; ZhongGen Li; Lihai Shang. 2020. "Status and risks of selenium deficiency in a traditional selenium-deficient area in Northeast China." Science of The Total Environment 762, no. : 144103.
Northeast China possess large areas of agricultural farmlands that were reclaimed from earlier marsh wetlands in the past several decades, while the response of trace element like mercury (Hg) in this process were not fully understood. In the present study, total mercury (THg) and Hg isotope composition were determined in reservoir sediment cores of a reservoir, agricultural soils and forest soils in Northeast China to reveal the possible impacts of agricultural activities on Hg geochemistry in the reservoir. The more negative δ202Hg (↓0.35‰), increased concentrations of THg (↑22.4 ng g−1), and higher organic matter (OM) (↑10%) in the deeper than the upper layer sediments indicate noticeable Hg input about 50–60 years ago, which is coincident with the grand reclamation of marsh wetland in the study area. The gradual decrease in THg content and the increase of δ202Hg value in the upper sediment layer reflect the weakened reclamation and thus less Hg input in the later decades. Using a triple mixing model, it is estimated that more than half of Hg in this reservoir sediment was originated from the reclamation of marsh wetlands into farmlands in the earlier stage and soil erosion in the later period. The study demonstrated that Hg isotope signatures in reservoir sediment core can reflect the landscape changes, such as reclamation.
Huifang Zhao; Guangyi Sun; ZhongGen Li; Leiming Zhang; Xinbin Feng; Xinyu Li; Tingting Wu. Total mercury and mercury isotope signatures in reservoir sediment reflecting the landscape changes and agricultural activities in northeast China. CATENA 2020, 197, 104983 .
AMA StyleHuifang Zhao, Guangyi Sun, ZhongGen Li, Leiming Zhang, Xinbin Feng, Xinyu Li, Tingting Wu. Total mercury and mercury isotope signatures in reservoir sediment reflecting the landscape changes and agricultural activities in northeast China. CATENA. 2020; 197 ():104983.
Chicago/Turabian StyleHuifang Zhao; Guangyi Sun; ZhongGen Li; Leiming Zhang; Xinbin Feng; Xinyu Li; Tingting Wu. 2020. "Total mercury and mercury isotope signatures in reservoir sediment reflecting the landscape changes and agricultural activities in northeast China." CATENA 197, no. : 104983.
The accumulations of heavy metals in urban soils are derived from natural parent materials and complex anthropogenic emission sources. This paper investigated metal contamination in urban soils at an industry undeveloped city (Haikou) in southern China, an ideal place to quantitatively assess the contribution of metals from different sources. The concentrations of most heavy metals in the urban soils of Haikou were much lower than their guideline values and that of those from other big cities in China. In contrast, the chemical speciation of metals in this study was similar to those from other cities. The spatial distributions of heavy metals and principal component analysis (PCA) revealed that basaltic parent materials, traffic emissions, and coal combustion were the main factors controlling the distribution of metals in the soils. The Pb isotope signatures of the Haikou soils were greatly different from those of the Beijing and Shanghai soils, but similar to those of the Guangzhou soils, suggesting the common sources of Pb in southern China cities. The results of ternary mixing model of Pb isotopes showed that the contributions of Pb from natural background, coal combustion and traffic emission sources were 5.3–82.4% (mean: 39.7 ± 21.1%), 0–85.7% (mean: 25.5 ± 24.6%), and 1.9–64% (mean: 34.8 ± 22.9%), respectively. This suggests that traffic emission is still the most important anthropogenic source of Pb in Haikou.
Xiangyang Bi; Mohai Zhang; Yunjie Wu; Zhongbiao Fu; Guangyi Sun; Lihai Shang; ZhongGen Li; Pengcong Wang. Distribution patterns and sources of heavy metals in soils from an industry undeveloped city in Southern China. Ecotoxicology and Environmental Safety 2020, 205, 111115 .
AMA StyleXiangyang Bi, Mohai Zhang, Yunjie Wu, Zhongbiao Fu, Guangyi Sun, Lihai Shang, ZhongGen Li, Pengcong Wang. Distribution patterns and sources of heavy metals in soils from an industry undeveloped city in Southern China. Ecotoxicology and Environmental Safety. 2020; 205 ():111115.
Chicago/Turabian StyleXiangyang Bi; Mohai Zhang; Yunjie Wu; Zhongbiao Fu; Guangyi Sun; Lihai Shang; ZhongGen Li; Pengcong Wang. 2020. "Distribution patterns and sources of heavy metals in soils from an industry undeveloped city in Southern China." Ecotoxicology and Environmental Safety 205, no. : 111115.
Characterizing the composition of mercury (Hg) isotopes in the atmospheric emissions of cement plants is critical to understand the global circulation of Hg because large quantities of Hg are released from this source annually. A pre-calciner cement plant in Guizhou Province in Southwest China was selected to investigate the mass dependent fractionation (MDF) and mass independent fractionation (MIF) of Hg in the entire production process and the speciated Hg isotope composition in stack gas. Significant MDF and insignificant MIF were observed in this cement plant. Different raw/correction materials have δ202Hg signals ranging from -1.68 to -2.19‰. Raw meal is featured with lighter Hg (δ202Hg = -2.83 ± 0.18‰) as results of Hg circulation and accumulation during the clinker production. Cement products possess negative δ202Hg values (-1.98 ± 0.02‰) due to the input of light δ202Hg isotopes through additives/retarder limestone, and fly ash and gypsum from coal-fired power plant (CFPPs). Speciated Hg isotopes in the stack gas of the kiln tail and kiln head show no significant differences, and δ202Hg and Δ199Hg in the discharged flue gas averaged at -2.03 ± 0. 31‰ and -0.03 ± 0.07‰, respectively, which has negative δ202Hg characteristics with other anthropogenic sources.
Xinyu Li; Ji Chen; Li Tang; Tingting Wu; Chengcheng Fu; ZhongGen Li; Guangyi Sun; Huifang Zhao; Leiming Zhang; Qiuhua Li; Xinbin Feng. Mercury isotope signatures of a pre-calciner cement plant in Southwest China. Journal of Hazardous Materials 2020, 401, 123384 .
AMA StyleXinyu Li, Ji Chen, Li Tang, Tingting Wu, Chengcheng Fu, ZhongGen Li, Guangyi Sun, Huifang Zhao, Leiming Zhang, Qiuhua Li, Xinbin Feng. Mercury isotope signatures of a pre-calciner cement plant in Southwest China. Journal of Hazardous Materials. 2020; 401 ():123384.
Chicago/Turabian StyleXinyu Li; Ji Chen; Li Tang; Tingting Wu; Chengcheng Fu; ZhongGen Li; Guangyi Sun; Huifang Zhao; Leiming Zhang; Qiuhua Li; Xinbin Feng. 2020. "Mercury isotope signatures of a pre-calciner cement plant in Southwest China." Journal of Hazardous Materials 401, no. : 123384.
The geochemical characteristics of atmospheric deposition can help trace the origin and assess the impacts of pollutants. Northeast China has always been a region seriously affected by sandstorms. This study aims to explain the potential source of sandstorms in Gannan County, Heilongjiang Provence, by collecting dust and analyzing geochemistry in one year where there is no significant industrial or anthropogenic pollution. Input fluxes of deposition show that Zn and Mn were more prevalent (36.7 g·hm−2·a−1 and 77.93 g·hm−2·a−1, respectively) than other elements. The geochemical composition of atmospheric deposition samples from 17 collection points in Gannan County were determined with regard to 20 elements including nine heavy metals, two metalloids, three nonmetallic elements, a transition metal, and five other major elements. The discriminate function (DF) and chemical index of alteration (CIA) indices indicate that Gannan County (agricultural production area) and Harbin (densely inhabited district) have similar geochemical characteristics of dry deposition. The integration of Na/Al and Ca/Mg ratios with an air mass back-trajectories model shows effects from Russian dust sources (36.6%) and from the northwest desert of China (13.3%). The results will assist in developing strategies for reducing dry deposition pollution inputs to agricultural soils in the area and will effectively target policies to protect soils from long-term contaminant accumulation.
Chenmeng Yang; Guangyi Sun; Chao Zhang; Yupeng Chen; Lihai Shang. A New Geochemical Method for Determining the Sources of Atmospheric Particles: A Case Study from Gannan, Northeast China. Atmosphere 2019, 10, 632 .
AMA StyleChenmeng Yang, Guangyi Sun, Chao Zhang, Yupeng Chen, Lihai Shang. A New Geochemical Method for Determining the Sources of Atmospheric Particles: A Case Study from Gannan, Northeast China. Atmosphere. 2019; 10 (10):632.
Chicago/Turabian StyleChenmeng Yang; Guangyi Sun; Chao Zhang; Yupeng Chen; Lihai Shang. 2019. "A New Geochemical Method for Determining the Sources of Atmospheric Particles: A Case Study from Gannan, Northeast China." Atmosphere 10, no. 10: 632.
Early Ordovician A-type granites in the northeastern (NE) Songnen Block NE China were studied to better understand the geodynamic settings in this region. This research presents new zircon U–Pb ages and whole-rock geochemical data for the Early Ordovician granites in the NE Songnen Block. Zircon U–Pb dating indicates that the granite in the Cuibei, Hongxing, and Meixi areas in the NE Songnen Block formed in the Early Ordovician with ages of 471–479 Ma. The granites show geochemical characteristics of high SiO2 and K2O compositions and low FeOT, MgO, CaO, and P2O5 compositions. They belong to a high K calc-alkaline series and display a weak peraluminous feature with A/CNK values of 0.98–1.14. The rocks have a ∑REE composition of 249.98–423.94 ppm, and are enriched in LREE with (La/Yb)N values of 2.87–9.87, and display obvious Eu anomalies (δEu = 0.01–0.29). Trace elements of the studied granites are characterized by enrichment in Rb, Th, U, Pb, Hf, and Sm, and depletion of Ba, Nb, Ta, and Sr. They display geochemical features of high Zr + Y + Nb + Ce values (324–795 ppm) and Ga/Al ratios consistent with A-type granites. Based on particular geochemical features, such as high Rb/Nb (7.98–24.19) and Y/Nb (1.07–3.43), the studied A-type granites can be further classified as an A2-type subgroup. This research indicates that the Early Ordovician A-type granites were formed by the partial melting of ancient crust in an extensional setting. Lower Sr/Y and (Ho/Yb)N ratios indicate that plagioclase and amphibole are residual in the source, and garnet is absent, implying that the magma was generated at low levels of pressure. By contrast, the contemporaneous granites in the SE Xing’an Block suggest a subduction-related tectonic setting, and its adakitic property indicates a thickened continental crust. We suggest that the Paleo-Asian Ocean plate between the Xing’an and Songnen blocks subducted northward during the Early Ordovician. Meanwhile, the NE Songnen Block was exposed to a passive continental margin tectonic setting.
Changzhou Deng; Deyou Sun; Guangyi Sun; Changlu Lv; Zhen Qin; Xianquan Ping; Guanghui Li. Age and geochemistry of Early Ordovician A-type granites in the Northeastern Songnen Block, NE China. Acta Geochimica 2018, 37, 805 -819.
AMA StyleChangzhou Deng, Deyou Sun, Guangyi Sun, Changlu Lv, Zhen Qin, Xianquan Ping, Guanghui Li. Age and geochemistry of Early Ordovician A-type granites in the Northeastern Songnen Block, NE China. Acta Geochimica. 2018; 37 (6):805-819.
Chicago/Turabian StyleChangzhou Deng; Deyou Sun; Guangyi Sun; Changlu Lv; Zhen Qin; Xianquan Ping; Guanghui Li. 2018. "Age and geochemistry of Early Ordovician A-type granites in the Northeastern Songnen Block, NE China." Acta Geochimica 37, no. 6: 805-819.
In order to assess the exposure of rural residents to trace metals via drinking water ingestion, 222 drinking water samples of rural areas from 8 provinces in China were collected and 18 trace metals analyzed by inductively coupled plasma mass spectrometer (ICP-QMS). Based on metal concentrations, the health-risk assessment such as chronic daily intakes (CDI) and hazard quotient (HQ) were calculated. Results showed that most metals occurred in the drinking water at very low concentrations, indicating a general good quality, while the concentrations of As, Pb and Zn in some samples from Qinghai, Yunnan and Hunan provinces were higher than World Health Organization (WHO) and Chinese guidelines for drinking water. The values of CDI and HQ indicated a negligible health risk for most Chinese rural residents via drinking water. However, high concentrations of As in drinking water from Qinghai province would pose a serious risk to the local inhabitants. More attention and intensive study should be paid to Zn, Pb and As contents.
Junhua Wu; Yi Man; Guangyi Sun; Lihai Shang. Occurrence and Health-Risk Assessment of Trace Metals in Raw and Boiled Drinking Water from Rural Areas of China. Water 2018, 10, 641 .
AMA StyleJunhua Wu, Yi Man, Guangyi Sun, Lihai Shang. Occurrence and Health-Risk Assessment of Trace Metals in Raw and Boiled Drinking Water from Rural Areas of China. Water. 2018; 10 (5):641.
Chicago/Turabian StyleJunhua Wu; Yi Man; Guangyi Sun; Lihai Shang. 2018. "Occurrence and Health-Risk Assessment of Trace Metals in Raw and Boiled Drinking Water from Rural Areas of China." Water 10, no. 5: 641.
The characterization of the concentrations and sources of metals and metalloids in soils is necessary to establish quality standards on a regional level and to assess the potential threat of metals to food safety and human health. A total of 8713 soil samples throughout Hainan Island, China were collected at a density of one sample per 4 km2, and concentrations of As, Cd, Cr, Cu, Hg, Ni, Pb, Se, and Zn were analyzed. The geometric mean values of the elements were 2.17, 0.60, 26.5, 9.43, 0.033, 8.74, 22.2, 0.26, and 39.6 mg·· kg−1 for As, Cd, Cr, Cu, Hg, Ni, Pb, Se, and Zn, respectively, significantly lower than the background values of Chinese soils with the exception of Se. Principal component analysis (PCA) suggested that multiple anthropogenic sources regulated the elemental compositions of the Hainan environment. Coal combustion and mining are important anthropogenic sources of metals for Hainan. The geochemical maps of elements in Hainan soils were produced using the Geographic Information System (GIS) method, and several hot-spot areas were identified. The ecological impact of As, Cd, Cu, Cr, Hg, Pb, Ni, and Zn pollution to the soils was extremely “low”.
Xiangjun Liao; Chao Zhang; Guangyi Sun; ZhongGen Li; Lihai Shang; Yangrong Fu; Yusheng He; Yi Yang. Assessment of Metalloid and Metal Contamination in Soils from Hainan, China. International Journal of Environmental Research and Public Health 2018, 15, 454 .
AMA StyleXiangjun Liao, Chao Zhang, Guangyi Sun, ZhongGen Li, Lihai Shang, Yangrong Fu, Yusheng He, Yi Yang. Assessment of Metalloid and Metal Contamination in Soils from Hainan, China. International Journal of Environmental Research and Public Health. 2018; 15 (3):454.
Chicago/Turabian StyleXiangjun Liao; Chao Zhang; Guangyi Sun; ZhongGen Li; Lihai Shang; Yangrong Fu; Yusheng He; Yi Yang. 2018. "Assessment of Metalloid and Metal Contamination in Soils from Hainan, China." International Journal of Environmental Research and Public Health 15, no. 3: 454.
In this study, total mercury (THg) and methylmercury (MeHg) concentrations in muscles (leg and breast), organs (intestine, heart, stomach, liver) and blood were investigated for backyard chickens, ducks and geese of the Wanshan Mercury Mine, China. THg in poultry meat products range from 7.9 to 3917.1 ng/g, most of which exceeded the Chinese national standard limit for THg in meat (50 ng/g). Elevated MeHg concentrations (0.4-62.8 ng/g) were also observed in meat products, suggesting that poultry meat can be an important human MeHg exposure source. Ducks and geese showed higher Hg levels than chickens. For all poultry species, the highest Hg concentrations were observed in liver (THg: 23.2-3917.1 ng/g; MeHg: 7.1-62.8 ng/g) and blood (THg: 12.3-338.0 ng/g; MeHg: 1.4-17.6 ng/g). We estimated the Hg burdens in chickens (THg: 15.3-238.1 μg; MeHg: 2.2-15.6 μg), ducks (THg: 15.3-238.1 μg; MeHg: 3.5-14.7 μg) and geese (THg: 83.8-93.4 μg; MeHg: 15.4-29.7 μg). To not exceed the daily intake limit for THg (34.2 μg/day) and MeHg (6 μg/day), we suggested that the maximum amount (g) for chicken leg, breast, heart, stomach, intestine, liver, and blood should be 1384, 1498, 2315, 1214, 1081, 257, and 717, respectively; the maximum amount (g) for duck leg, breast, heart, stomach, intestine, liver, and blood should be 750, 1041, 986, 858, 752, 134, and 573, respectively; and the maximum amount (g) for goose leg, breast, heart, stomach, intestine, liver, and blood should be 941, 1051, 1040, 1131, 964, 137, and 562, respectively.
Runsheng Yin; Wei Zhang; Guangyi Sun; Zhaohui Feng; James P. Hurley; Liyuan Yang; Lihai Shang; Xinbin Feng. Mercury risk in poultry in the Wanshan Mercury Mine, China. Environmental Pollution 2017, 230, 810 -816.
AMA StyleRunsheng Yin, Wei Zhang, Guangyi Sun, Zhaohui Feng, James P. Hurley, Liyuan Yang, Lihai Shang, Xinbin Feng. Mercury risk in poultry in the Wanshan Mercury Mine, China. Environmental Pollution. 2017; 230 ():810-816.
Chicago/Turabian StyleRunsheng Yin; Wei Zhang; Guangyi Sun; Zhaohui Feng; James P. Hurley; Liyuan Yang; Lihai Shang; Xinbin Feng. 2017. "Mercury risk in poultry in the Wanshan Mercury Mine, China." Environmental Pollution 230, no. : 810-816.
To investigate the impact of artisanal zinc smelting activities (AZSA) on the distribution and enrichment of trace metal(loid)s in street dust of a small city in Guizhou province, SW China, street dust samples were collected and analyzed for 10 trace metal(loid)s (Cr, Co, Ni, Cu, Zn, As, Cd, Sb, Pb, and Hg). Meanwhile, the health risks of local resident exposed to street dust were assessed. The result showed that the average concentrations of 10 elements were Zn (1039 mg kg−1), Pb (423 mg kg−1), Cr (119 mg kg−1), Cu (99 mg kg−1), As (55 mg kg−1), Ni (39 mg kg−1), Co (18 mg kg−1), Sb (7.6 mg kg−1), Cd (2.6 mg kg−1), and Hg (0.22 mg kg−1). Except Ni, Co, and Cr, other elements in street dust were obviously elevated compared to the provincial soil background. Pb, Zn, Cd, Sb, and Cu were at heavy to moderate contamination status, especially Pb and Zn, with maximums of 1723 and 708 mg kg−1, respectively; As and Hg were slightly contaminated; while Cr, Ni, and Co were at un-contaminated levels. Multivariate statistical analysis revealed AZSA contributed to the increase of Pb, Zn, Cd, Sb, As, and Hg, while, natural sources introduced Ni, Co, Cr, and Cu. The health risk assessment disclosed that children had higher non-carcinogenic risk than those found in adults, and As has hazardous index (HI) higher than 1 both for children and adults, while Pb and Cr only had HIs higher than 1 for children, other elements were relatively safe. For carcinogenic risks, the major concern was As, then a lesser concern for Cr. The study showed that although the scale of AZSA was small, the contamination of heavy metal(loid)s in street dust and associated health risks were severe.
Tingting Wu; Xiangyang Bi; ZhongGen Li; Guangyi Sun; Xinbin Feng; Lihai Shang; Hua Zhang; Tianrong He; Ji Chen. Contaminations, Sources, and Health Risks of Trace Metal(loid)s in Street Dust of a Small City Impacted by Artisanal Zn Smelting Activities. International Journal of Environmental Research and Public Health 2017, 14, 961 .
AMA StyleTingting Wu, Xiangyang Bi, ZhongGen Li, Guangyi Sun, Xinbin Feng, Lihai Shang, Hua Zhang, Tianrong He, Ji Chen. Contaminations, Sources, and Health Risks of Trace Metal(loid)s in Street Dust of a Small City Impacted by Artisanal Zn Smelting Activities. International Journal of Environmental Research and Public Health. 2017; 14 (9):961.
Chicago/Turabian StyleTingting Wu; Xiangyang Bi; ZhongGen Li; Guangyi Sun; Xinbin Feng; Lihai Shang; Hua Zhang; Tianrong He; Ji Chen. 2017. "Contaminations, Sources, and Health Risks of Trace Metal(loid)s in Street Dust of a Small City Impacted by Artisanal Zn Smelting Activities." International Journal of Environmental Research and Public Health 14, no. 9: 961.
In this paper, we report new whole-rock geochemical and zircon U–Pb data for monzogranites in the NE Xing’an block. These data constrained the petrogenesis of C type (high Sr/Y) adakitic rocks and showed the spatial extent of the influence of the Mongol-Okhostsk ocean tectonic regime and the collision between the Jiamusi Massif and Songliao Terrane. New zircon laser-ablation inductivity coupled plasma mass spectrometry (LA-ICP-MS) U–Pb data indicated that the monzogranites in the studied area were emplaced in the Early Jurassic (~180 Ma). These rocks were characterized by unusally high SiO2 (≥67.49), and Sr (461–759 ppm), but strikingly low Y (4.63–8.06 ppm) and HREE (∑HREE = 3.83–6.49 ppm, Yb = 0.5–0.77 ppm) contents, with therefore high Sr/Y (67.2–119) and (La/Yb)N (29.7–41.5) ratios, showing the geochemical characteristics of C type adakitic granite. The data displayed negligible Eu anomalies (Eu/Eu* = 0.77–1.08), LREE-enriched and pronounced negative Nb and Ta anomalies. The C-type adakites in the studied area were most likely derived from the partial melting of a thickened lower continental curst. The magma source is most likely dominated by amphibolites and garnet amphibolites. In combination with previously-reported data from igneous rocks from the Mesozoic in NE China, we conclude that the Xing’an block was influenced by the Mongol-Okhotsk subduction tectonic system, and experiences compressive settings from the amalgamation of the Jiamusi block in the east of the CAOB.
Changzhou Deng; Guangyi Sun; Hu Huang; Jianfeng Zhang; Jun Gou. Origin of C type adakite magmas in the NE Xing’an block, NE China and tectonic implication. Acta Geochimica 2017, 37, 281 -294.
AMA StyleChangzhou Deng, Guangyi Sun, Hu Huang, Jianfeng Zhang, Jun Gou. Origin of C type adakite magmas in the NE Xing’an block, NE China and tectonic implication. Acta Geochimica. 2017; 37 (2):281-294.
Chicago/Turabian StyleChangzhou Deng; Guangyi Sun; Hu Huang; Jianfeng Zhang; Jun Gou. 2017. "Origin of C type adakite magmas in the NE Xing’an block, NE China and tectonic implication." Acta Geochimica 37, no. 2: 281-294.
The content levels, distribution characteristics, and health risks associated with 15 rare earth elements (REEs) in urban street dust from an industrial city, Zhuzhou, in central China were investigated. The total REE content (∑REE) ranged from 66.1 to 237.4 mg kg(-1), with an average of 115.9 mg kg(-1), which is lower than that of Chinese background soil and Yangtze river sediment. Average content of the individual REE in street dust decreased in the order Ce > La > Nd > Y > Pr > Sm > Gd > Dy > Er > Yb > Eu > Ho > Tb > Tm > Lu. The chondrite-normalized REE pattern indicated light REE (LREE) enrichment, a relatively steep LREE trend, heavy REE (HREE) depletion, a flat HREE trend, a Eu-negative anomaly and a Ce-positive anomaly. Foremost heavy local soil and to less degree anthropogenic pollution are the main sources of REE present in street dust. Health risk associated with the exposure of REE in street dust was assessed based on the carcinogenic and non-carcinogenic effect and lifetime average daily dose. The obtained cancer and non-cancer risk values prompt for no augmented health hazard. However, children had greater health risks than that of adults.
Guangyi Sun; ZhongGen Li; Ting Liu; Ji Chen; Tingting Wu; Xinbin Feng. Rare earth elements in street dust and associated health risk in a municipal industrial base of central China. Environmental Geochemistry and Health 2017, 39, 1469 -1486.
AMA StyleGuangyi Sun, ZhongGen Li, Ting Liu, Ji Chen, Tingting Wu, Xinbin Feng. Rare earth elements in street dust and associated health risk in a municipal industrial base of central China. Environmental Geochemistry and Health. 2017; 39 (6):1469-1486.
Chicago/Turabian StyleGuangyi Sun; ZhongGen Li; Ting Liu; Ji Chen; Tingting Wu; Xinbin Feng. 2017. "Rare earth elements in street dust and associated health risk in a municipal industrial base of central China." Environmental Geochemistry and Health 39, no. 6: 1469-1486.
Fifty-five urban street dust samples were collected from Zhuzhou, an industrial city in central China and analyzed for a range of toxic elements. Potential carcinogenic and non-carcinogenic health effects on children and adults due to exposure to street dust were assessed. Concerning the two subgroups, the child cohort is confronted with considerably greater health risks than adults. According to the Hazard Quotient (HQ) method, ingestion of dust particles poses primary risk to children and adults, followed by dermal contact and inhalation for all of the metals investigated except Hg, for which inhalation of its elemental vapor constitute a slightly higher risk than ingestion. For children, Pb, As, Cd, Cr, Hg and Sb exposure were deemed as the highest contributors to non-cancer health risks, while As and Cr represent an enhanced cancer risk for children. For adults, risk indicator values for both cancer and non-cancer effects obtained were within the safety threshold. In a comparison with other locations within and outside mainland China, exposure to arsenic is prominent for the population of Zhuzhou, indicating more attention and preventive actions should been taken.
Guangyi Sun; ZhongGen Li; Ting Liu; Ji Chen; Tingting Wu; Xinbin Feng. Metal Exposure and Associated Health Risk to Human Beings by Street Dust in a Heavily Industrialized City of Hunan Province, Central China. International Journal of Environmental Research and Public Health 2017, 14, 261 .
AMA StyleGuangyi Sun, ZhongGen Li, Ting Liu, Ji Chen, Tingting Wu, Xinbin Feng. Metal Exposure and Associated Health Risk to Human Beings by Street Dust in a Heavily Industrialized City of Hunan Province, Central China. International Journal of Environmental Research and Public Health. 2017; 14 (3):261.
Chicago/Turabian StyleGuangyi Sun; ZhongGen Li; Ting Liu; Ji Chen; Tingting Wu; Xinbin Feng. 2017. "Metal Exposure and Associated Health Risk to Human Beings by Street Dust in a Heavily Industrialized City of Hunan Province, Central China." International Journal of Environmental Research and Public Health 14, no. 3: 261.
Agricultural soil pollution is a serious problem that can endanger ecology, food safety, and human health. The study evaluated the accumulation and distribution of major and trace elements in the agricultural soil of the Gannan area in the northwest Songnen-Plain, a very important base of grain production in northeastern China. To identify the concentrations and sources of pollutants and also to assess the soil environmental quality, a total of 2400 topsoil (0–20 cm) samples and 10 subsoil (180–200 cm) samples were collected. Then 6 major elements (CaO, Fe2O3, K2O, MgO, Na2O, SiO2), 18 trace elements (As, B, Cd, Co, Cr, Cu, F, Hg, I, Mo, Mn, N, Ni, P, Pb, Se, S, and Zn), pH, and Corg (organic carbon) were analyzed. The accumulation of Cd, Cu, Pb, Zn, Hg, and F was apparent in the agricultural soils. Correlation coefficient analysis showed that most major and trace elements, as well as pH and Corg, were significantly positive correlated in agricultural soil. Principal component analysis (PCA) indicated two main anthropogenic sources for trace elements in agricultural topsoil. The first component including B, Cr, Cu, Mg, Ni, and Zn, represented a mixture of atmospheric deposition and livestock manures; whereas the second component, relating to Ca, F, Cd, Hg, Se, and P, suggested the inorganic fertilizers and lime, as well as agrochemicals. Spatial distribution patterns using GIS contour maps and an integrated soil pollution index were established for the selected metal concentrations. In general, the range of RI (the potential ecological risk index) was from 43.6 to 556, with a mean value of 106, indicating low ecological risk in this study area. This study indicated that more attention should be paid to metal pollution of agricultural soil in the rural area to safeguard both soil and food safety.
Guangyi Sun; Yupeng Chen; Xiangyang Bi; Wen Yang; Xingshi Chen; Bin Zhang; Yujun Cui. Geochemical assessment of agricultural soil: A case study in Songnen-Plain (Northeastern China). CATENA 2013, 111, 56 -63.
AMA StyleGuangyi Sun, Yupeng Chen, Xiangyang Bi, Wen Yang, Xingshi Chen, Bin Zhang, Yujun Cui. Geochemical assessment of agricultural soil: A case study in Songnen-Plain (Northeastern China). CATENA. 2013; 111 ():56-63.
Chicago/Turabian StyleGuangyi Sun; Yupeng Chen; Xiangyang Bi; Wen Yang; Xingshi Chen; Bin Zhang; Yujun Cui. 2013. "Geochemical assessment of agricultural soil: A case study in Songnen-Plain (Northeastern China)." CATENA 111, no. : 56-63.
The horizontal and vertical distribution patterns and contamination status of ten trace metal/metalloids (Ag, Bi, Co, Cr, Ge, In, Ni, Sb, Sn, Tl) in soils around one of the largest Chinese Pb-Zn smelter in Zhuzhou City, Central China, were revealed. Different soil samples were collected from 11 areas, including ten agricultural areas and one city park area, with a total of 83 surface soil samples and six soil cores obtained. Trace metal/metalloids were determined by inductively coupled plasma-mass spectrometry after digestion by an acid mixture of HF and HNO3. The results showed that Ag, Bi, In, Sb, Sn, and Tl contents decreased both with the distance to the Pb-Zn smelter as well as the soil depth, hinting that these elements were mainly originated from the Pb-Zn smelting operations and were introduced into soils through atmospheric deposition. Soil Ge was influenced by the smelter at a less extent, while the distributions of Co, Cr, and Ni were roughly even among most sampling sites and soil depths, suggesting that they were primarily derived from natural sources. The contamination status, as revealed by the geo-accumulation index (I geo), indicated that In and Ag were the most enriched elements, followed by Sb, Bi, and Sn. In general, Cr, Tl, Co, Ni, and Ge were of an uncontaminated status.
ZhongGen Li; Xinbin Feng; Xiangyang Bi; Guanghui Li; Yan Lin; Guangyi Sun. Probing the distribution and contamination levels of 10 trace metal/metalloids in soils near a Pb/Zn smelter in Middle China. Environmental Science and Pollution Research 2013, 21, 4149 -4162.
AMA StyleZhongGen Li, Xinbin Feng, Xiangyang Bi, Guanghui Li, Yan Lin, Guangyi Sun. Probing the distribution and contamination levels of 10 trace metal/metalloids in soils near a Pb/Zn smelter in Middle China. Environmental Science and Pollution Research. 2013; 21 (6):4149-4162.
Chicago/Turabian StyleZhongGen Li; Xinbin Feng; Xiangyang Bi; Guanghui Li; Yan Lin; Guangyi Sun. 2013. "Probing the distribution and contamination levels of 10 trace metal/metalloids in soils near a Pb/Zn smelter in Middle China." Environmental Science and Pollution Research 21, no. 6: 4149-4162.
A series of representative street dust samples were collected from a heavily industrialized city, Zhuzhou, in central China, with the aim to investigate the spatial distribution and pollution status of 17 trace metal/metalloid elements. Concentrations of twelve elements (Pb, Zn, Cu, Cd, Hg, As, Sb, In, Bi, Tl, Ag and Ga) were distinctly amplified by atmospheric deposition resulting from a large scale Pb/Zn smelter located in the northwest fringe of the city, and followed a declining trend towards the city center. Three metals (W, Mo and Co) were enriched in samples very close to a hard alloy manufacturing plant, while Ni and Cr appeared to derive predominantly from natural sources. Other industries and traffic had neglectable effects on the accumulation of observed elements. Cd, In, Zn, Ag and Pb were the five metal/metalloids with highest pollution levels and the northwestern part of city is especially affected by heavy metal pollution.
ZhongGen Li; Xinbin Feng; Guanghui Li; Xiangyang Bi; Jianming Zhu; Haibo Qin; Zhihui Dai; Jinling Liu; Qiuhua Li; Guangyi Sun. Distributions, sources and pollution status of 17 trace metal/metalloids in the street dust of a heavily industrialized city of central China. Environmental Pollution 2013, 182, 408 -416.
AMA StyleZhongGen Li, Xinbin Feng, Guanghui Li, Xiangyang Bi, Jianming Zhu, Haibo Qin, Zhihui Dai, Jinling Liu, Qiuhua Li, Guangyi Sun. Distributions, sources and pollution status of 17 trace metal/metalloids in the street dust of a heavily industrialized city of central China. Environmental Pollution. 2013; 182 ():408-416.
Chicago/Turabian StyleZhongGen Li; Xinbin Feng; Guanghui Li; Xiangyang Bi; Jianming Zhu; Haibo Qin; Zhihui Dai; Jinling Liu; Qiuhua Li; Guangyi Sun. 2013. "Distributions, sources and pollution status of 17 trace metal/metalloids in the street dust of a heavily industrialized city of central China." Environmental Pollution 182, no. : 408-416.
Zongmin Zhu; Guangyi Sun; Xiangyang Bi; ZhongGen Li; Genhua Yu. Identification of trace metal pollution in urban dust from kindergartens using magnetic, geochemical and lead isotopic analyses. Atmospheric Environment 2013, 77, 9 -15.
AMA StyleZongmin Zhu, Guangyi Sun, Xiangyang Bi, ZhongGen Li, Genhua Yu. Identification of trace metal pollution in urban dust from kindergartens using magnetic, geochemical and lead isotopic analyses. Atmospheric Environment. 2013; 77 ():9-15.
Chicago/Turabian StyleZongmin Zhu; Guangyi Sun; Xiangyang Bi; ZhongGen Li; Genhua Yu. 2013. "Identification of trace metal pollution in urban dust from kindergartens using magnetic, geochemical and lead isotopic analyses." Atmospheric Environment 77, no. : 9-15.
Mercury (Hg) contamination in urban area is a hot issue in environmental research. In this study, the distribution, sources and health risk of Hg in dust from 69 kindergartens in Wuhan, China, were investigated. In comparison with most other cities, the concentrations of total mercury (THg) and methylmercury (MeHg) were significantly elevated, ranging from 0.15 to 10.59 mg kg−1 and from 0.64 to 3.88 μg kg−1, respectively. Among the five different urban areas, the educational area had the highest concentrations of THg and MeHg. The GIS mapping was used to identify the hot-spot areas and assess the potential pollution sources of Hg. The emissions of coal-power plants and coking plants were the main sources of THg in the dust, whereas the contributions of municipal solid waste (MSW) landfills and iron and steel smelting related industries were not significant. However, the emission of MSW landfills was considered to be an important source of MeHg in the studied area. The result of health risk assessment indicated that there was a high adverse health effect of the kindergarten dust in terms of Hg contamination on the children living in the educational area (Hazard index (HI) = 6.89).
Guangyi Sun; ZhongGen Li; Xiangyang Bi; Yupeng Chen; Shuangfang Lu; Xin Yuan. Distribution, sources and health risk assessment of mercury in kindergarten dust. Atmospheric Environment 2013, 73, 169 -176.
AMA StyleGuangyi Sun, ZhongGen Li, Xiangyang Bi, Yupeng Chen, Shuangfang Lu, Xin Yuan. Distribution, sources and health risk assessment of mercury in kindergarten dust. Atmospheric Environment. 2013; 73 ():169-176.
Chicago/Turabian StyleGuangyi Sun; ZhongGen Li; Xiangyang Bi; Yupeng Chen; Shuangfang Lu; Xin Yuan. 2013. "Distribution, sources and health risk assessment of mercury in kindergarten dust." Atmospheric Environment 73, no. : 169-176.