دورية أكاديمية
Hexachlorocyclohexane and dichlorodiphenyltrichloroethane residues in the dustfall of Tianjin, China
| العنوان: | Hexachlorocyclohexane and dichlorodiphenyltrichloroethane residues in the dustfall of Tianjin, China |
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| المؤلفون: | Wu, SP, Tao, S, Lan, T, Li, BG, Cao, J, Liu, WX, Liu, Y, Meng, BJ |
| المساهمون: | Tao, S (reprint author), Peking Univ, Coll Environm Sci, Lab Earth Surface Processes, Beijing 100871, Peoples R China., Peking Univ, Coll Environm Sci, Lab Earth Surface Processes, Beijing 100871, Peoples R China. |
| المصدر: | SCI ; EI |
| بيانات النشر: | journal of environmental science and health part a toxichazardous substances environmental engineering |
| سنة النشر: | 2005 |
| المجموعة: | Peking University Institutional Repository (PKU IR) / 北京大学机构知识库 |
| مصطلحات موضوعية: | HCH, DDT, dustfall, flux, seasonal variation, PERSISTENT ORGANIC POLLUTANTS, LONG-RANGE TRANSPORT, ORGANOCHLORINE PESTICIDES, GAMMA-HEXACHLOROCYCLOHEXANE, LAKE BAIKAL, AIR, WATER, SEDIMENTS, SOILS, FATE |
| الوصف: | Heating and nonheating season dustfall samples were collected from 23 sites in Tianjin, China during 2002-2003 to determine residues of hexachlorocyclohexane isomers (alpha-HCH, beta-HCH, gamma-HCH, and delta-HCH) and dichlorodiphenyltrichloroethane and metabolites (p,p'-DDE, p,p'-DDD, and p,p'-DDT). Concentrations of Sigma HCH (sum of alpha-, beta-, gamma-, and delta-HCH) and Sigma DDT (sum of p,p'-DDE, p,p'-DDD, and p,p'-DDT) varied in ranges of 10.9-3.16 x 10(3) and 37.9-1.53 x 10(3) ng g(-1) dry weight in heating season and in ranges of 6.9-1.12 x 10(3) and 18.6-626 ng g(-1) dry weight in nonheating season, respectively. It was found that HCHs and DDTs concentrations of the most heating season samples were higher than those of nonheating season samples collected from the same sites. Among studied compounds of the HCH family, beta-HCH prevailed in most samples, suggesting a possible volatilization or resuspension from contaminated topsoil. As for DDTs, p,p'-DDT and p,p'-DDE prevailed in most samples, indicating a possible "fresh" input. Correlations between HCHs/DDTs and total organic carbon and particle size are discussed. Atmospheric deposition fluxes were calculated for the heating and nonheating seasons, and the results showed that the annual input of particulate Sigma HCH and Sigma DDT from air to surface in the studied area of 1.19 x 10(4) km(2) were 89 t and 80 t, respectively. ; Engineering, Environmental ; Environmental Sciences ; SCI(E) ; EI ; 9 ; 9 ; 1715-1730 ; 40 |
| نوع الوثيقة: | journal/newspaper |
| اللغة: | English |
| تدمد: | 1093-4529 |
| العلاقة: | JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING.2005,40,(9),1715-1730.; 994676; http://hdl.handle.net/20.500.11897/254185Test; WOS:000231388700006 |
| DOI: | 10.1081/ESE-200068002 |
| الإتاحة: | https://doi.org/20.500.11897/254185Test https://doi.org/10.1081/ESE-200068002Test https://hdl.handle.net/20.500.11897/254185Test |
| رقم الانضمام: | edsbas.C4DBAF61 |
| قاعدة البيانات: | BASE |
| تدمد: | 10934529 |
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| DOI: | 10.1081/ESE-200068002 |