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15篇 您的检索式:作者名="Lihai Shang"
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1Total mercury in wild fish in Guizhou reservoirs, China显示文摘The health hazard of mercury (Hg) compounds is internationally recognized, and the main pathways for methylmercury (MeHg) intake in humans are through consumption of food, especially fish. Given the large releases of Hg to the environment in China, combined with the fast development of hydropower, this issue deserves attention. Provided similar mobilization pathways of Hg in China as seen in reservoirs in North America and Europe one should expect increased Hg contamination in relation to future hydropower reservoir construction in this country. This study presents total Hg (THg) concentrations in wild fish from six Guizhou reservoirs, China. The THg concentrations in fish were generally low despite high background levels in the bedrock and depositions from local point sources. The over all mean ± SD concentration of THg was (0.066 ± 0.078) μg/g (n = 235). After adjusting for among-reservoir variation in THg, there were significant differences in THg among functional groups of the fish, assumed to re?ect trophic levels. Predicted THg- concentration ratios, retrieved from a mixed linear model, between the functional groups were 9:4:4:1 for carnivorous, omnivorous, planktivorous and herbivorous fish. This result indicated that MeHg accumulation may prevail even under circumstances with short food chains as in this Chinese water system. No fish exceeded recommended maximum THg limit for human consumption set by World Health Organization and the Standardization Administration of China (0.5 μg/g fish wet weight (ww)). Only six fish (2.5%) exceeded the maximum THg limit set by US Environmental Protection Agency (0.3 μg/g fish ww).Haiyu Yan Atle Rustadbakken Heng Yao Thorjorn Larssen Xinbin Feng Ting Liu Lihai Shang Thrond O. Haugen 2010Journal of Environmental Sciences2010,22,8:6
2The influence of atmospheric Hg on Hg contaminations in rice and paddy soil in the Xunyang Hg mining district,China显示文摘To date, the Xunyang mercury(Hg) mining district is the only ongoing large-scale Hg mining district in China. To understand the influence of Hg contamination mode from the Hg mining and smelting activities, 27 sampling sites in the Xunyang Hg mining district were chosen in this study. Total gaseous mercury(TGM) in ambient air was measured using a Lumex-RA915 automatic Hg analyzer in2011. Rice samples and soil samples from rhizosphere were collected systematically and simultaneously. Total Hg(THg) and methylmercury(Me Hg) concentrations in rice grain and soil samples and Hg speciation with modified sequential selective extractions were measured. The local environment was seriously polluted with Hg. The TGM(302 ± 376 ng·m-3, ranging from 24 to 2220 ng·m^(-3)) in the local ambient air, THg(28 ± 30 mg·kg^(-1), ranging from 0.31 to 121 mg·kg^(-1)) and Me Hg(2.3 ± 1.9 lg·kg^(-1),ranging from 0.24 to 8.9 lg·kg^(-1)) in soil samples were at the sample level with Hg contaminated area. The THg concentration(26 ± 16 lg·kg^(-1)ranging from 4.5 to 71 lg·kg^(-1)) in most of the rice grain samples clearly exceeds the threshold level(20 lg·kg^(-1)) in the Chinese national guidelines for cereals(NY 861-2004). The inorganic mercury(IHg)(9.1 ± 5.6 lg·kg^(-1), ranging from 1.2 to 24 lg·kg^(-1)) and Me Hg(14 ± 9.8 lg·kg^(-1), ranging from 2.1 to 59 lg·kg^(-1))concentration in rice grain samples were at the same level with Hg contaminated area. The main species of Hg in paddy soils reveal strong complex Hg and residue Hg. According to the correlation analysis, a Hg pollution mode from local Hg mining and smelting was hypothesized, including Hg emission, transportation, methylation, and uptake process.Ming Ao Bo Meng Atindra Sapkota Yonggui Wu Xiaoli Qian Guangle Qiu Shunqing Zhong Lihai Shang 2017Acta Geochimica2017,36,2:5
3Chemical characterization and sources of PM2.5 at 12-h resolution in Guiyang, China显示文摘The increasing emission of primary and gaseous precursors of secondarily formed atmospheric particulate matter due to continuing industrial development and urbanization are leading to an increased public awareness of environmental issues and human health risks in China.As part of a pilot study, 12-h integrated fine fraction particulate matter(PM_(2.5) filter samples were collected to chemically characterize and investigate the sources of ambient particulate matter in Guiyang City, Guizhou Province, southwestern China. Results showed that the 12-h integrated PM_(2.5) concentrations exhibited a daytime average of 51 ± 22 lg m^(-3)(mean ± standard deviation) with a range of 17–128 lg m^(-3) and a nighttime average of55 ± 32 lg m~(^(-3)) with a range of 4–186 lg m^(-3). The 24-h integrated PM_(2.5) concentrations varied from 15 to157 lg m~(^(-3)), with a mean value of 53 ± 25 lg m^(-3), which exceeded the 24-h PM_(2.5) standard of 35 lg m^(-3) set by USEPA, but was below the standard of 75 lg m^(-3), set by China Ministry of Environmental Protection. Energy-dispersive X-ray fluorescence spectrometry(XRF) was applied to determine PM_(2.5) chemical element concentrations. The order of concentrations of heavy metals in PM_(2.5) were iron(Fe) [ zinc(Zn) [ manganese(Mn) [ lead(Pb) [ arsenic(As) [ chromium(Cr). The total concentration of 18 chemical elements was 13 ± 2 lg m^(-3),accounting for 25% in PM_(2.5), which is comparable to other major cities in China, but much higher than cities outside of China.Longchao Liang Na Liu Matthew S. Landis Xiaohang Xu Xinbin Feng Zhuo Chen Lihai Shang Guangle Qiu 2018Acta Geochimica2018,37,2:4
4Mercury concentrations and air/soil fluxes in Wuchuan mercury mining district, Guizhou province, China显示文摘Shaofeng Wang Xinbin Feng Guangle Qiu Lihai Shang Ping Li Zhongqing Wei 2007Atmospheric Environment2007,,28:1
5Fractionation, distribution and transport of mercury in rivers and tributaries around Wanshan Hg mining district, Guizhou province, southwestern China: Part 1 – Total mercury显示文摘Hua Zhang Xinbin Feng Thorj?rn Larssen Lihai Shang Rolf D. Vogt Sarah E. Rothenberg Ping Li Hui Zhang Yan Lin 2010Applied Geochemistry2010,,5:1
6Mercury speciation and distribution in Aha Reservoir which was contaminated by coal mining activities in Guiyang, Guizhou, China显示文摘Xinbin Feng Weiyang Bai Lihai Shang Tianrong He Guangle Qiu Haiyu Yan 2010Applied Geochemistry2010,,2:1
7Mercury pollution from artisanal mercury mining in Tongren, Guizhou, China显示文摘LI Ping FENG Xinbin SHANG Lihai 2008Applied Geochemistry2008,23,:1
8The variations of mercury in sediment profiles from a historically mercury-contaminated reservoir, Guizhou province, China显示文摘Haiyu Yan Xinbin Feng Lihai Shang Guangle Qiu Qianjin Dai Shaofeng Wang Yamin Hou 2008Science of the Total Environment2008,,1:1
9Tota gaseous mercury in the atmosphere of Guiyang,PR China显示文摘FENG Xinbin TANG Shunlin SHANG Lihai 2003Science of the Total Environment2003,304,123:1
10Comparison of the effects of two sediments processing ways on the determination of methylmercury in sediments显示文摘Lihai SHANG Xinbin FENG Guangle QIU Haiyu YAN Guanghui LI 2006Chinese Journal Of Geochemistry2006,25,B08:0
11Different mercury species in the atmosphere over the municipal solid waste landfills显示文摘Zhonggen LI Xinbin FENG Ping LI Shunlin TANG Shaofeng WANG Xuewu FU Wei ZHENG Lihai SHANG 2006Chinese Journal Of Geochemistry2006,25,B08:0
12Methylmercury and total mercury distribution in the sediments of Baihua Reservoir, Guizhou Province, China显示文摘Lihai SHANG Xinbin FENG Haiyu YAN Guangle QIU Guanghui LI 2006Chinese Journal Of Geochemistry2006,25,B08:0
13Must mercury enriched substrate be atmospheric mercury sources?显示文摘Shaofeng WANG Xinbin FENG Guangle QIU Lihai SHANG Ping LI Zhongqing WEI 2006Chinese Journal Of Geochemistry2006,25,B08:0
14Understanding the excretion rates of methylmercury and inorganic mercury from human body via hair and fingernails显示文摘Effective biomarkers are necessary to better understand the human mercury(Hg) exposure levels. However, mismatched biomarker sampling method causes extra uncertainty in assessing the risk of Hg exposure. To compare the differences between hair and fingernail, and further understand the excretion rates of methylmercury(MeHg) and inorganic mercury(IHg) via hair and fingernails, the total mercury(THg), Me Hg, and IHg concentrations in paired hair and fingernail samples were investigated through paired samples collected from two typical mining areas, Wanshan mercury mine area(WMMA) and Hezhang zinc smelting area(HZSA). The positive correlation in THg, MeHg, and IHg concentrations( p < 0.01) between hair and fingernail samples indicated that those two biomarkers can be corrected in application of assessing human Hg exposure. Compared to fingernails, the hair was suggested to be a more sensitive biomarker as the concentration of THg, MeHg and IHg were 2~4 times higher than those in fingernails. Furthermore, the amounts of THg, MeHg, and IHg excreted via hair were 70~226 times higher than that excreted via fingernails, and the hair plays a more important role than fingernails in the excretion of Hg from human bodies. Present study therefore provides some new insights to better understand the fate of human assimilated Hg.Wei Zhang Fen Li Lingjian Gao Guangyi Sun Zikang Cui Fengfeng Chen Ping Li Xinbin Feng Lihai Shang 2022Journal of Environmental Sciences2022,34,9:0
15A primary study on biogeochemical cycling characteristics of mercury in Baihua Reservoir in Guizhou显示文摘Haiyu YAN Xinbin FENG Lihai SHANG Guangle QIU 2006Chinese Journal Of Geochemistry2006,25,B08:0
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