دورية أكاديمية
Using the o,p '-DDT/p,p '-DDT ratio to identify DDT sources in China
| العنوان: | Using the o,p '-DDT/p,p '-DDT ratio to identify DDT sources in China |
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| المؤلفون: | Qiu, Xinghua, Zhu, Tong |
| المساهمون: | Zhu, T (reprint author), Peking Univ, Coll Environm Sci & Engn, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100871, Peoples R China., Peking Univ, Coll Environm Sci & Engn, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100871, Peoples R China. |
| المصدر: | PubMed ; EI ; SCI |
| بيانات النشر: | chemosphere |
| سنة النشر: | 2010 |
| المجموعة: | Peking University Institutional Repository (PKU IR) / 北京大学机构知识库 |
| مصطلحات موضوعية: | Dichlorodiphenyltrichloroethane (DDT), Dicofol, Technical DDT, Isomer ratio, Source, China, PERSISTENT ORGANIC POLLUTANTS, RANGE ATMOSPHERIC TRANSPORT, PEARL RIVER DELTA, ORGANOCHLORINE PESTICIDES, TAIHU LAKE, SOUTHERN-CALIFORNIA, HONG-KONG, AIR, EXCHANGE, SOIL |
| الوصف: | Dichlorodiphenyltrichloroethane (DDT) has been banned in China for decades, and yet high DDT concentrations are still being detected in the Chinese environment. This might be at least partly due to the current use of dicofol formulation, which contains DDT as an impurity. In this study, a method based on the ratios of two DDT isomers, o,p '-DDT and p,p '-DDT, was established and used to estimate the relative contributions of dicofol formulation and those of technical DDT to overall environmental DDT. Based on this method and field data from the literature, we calculated that dicofol formulation contributed >72% of atmospheric DDT in 2004 in the Taihu Lake region, China, and this value was >84% in summer when dicofol was applied for agricultural purposes. Sediment and soil, however, contained mostly residual DDT from the historical use of technical DDT. In most other regions of China, we found that dicofol contributed to a significant fraction of DDT in air samples. (C) 2010 Elsevier Ltd. All rights reserved. ; Environmental Sciences ; SCI(E) ; EI ; PubMed ; 12 ; ARTICLE ; 8 ; 1033-1038 ; 81 |
| نوع الوثيقة: | journal/newspaper |
| اللغة: | English |
| تدمد: | 0045-6535 |
| العلاقة: | CHEMOSPHERE.2010,81,(8),1033-1038.; 664631; http://hdl.handle.net/20.500.11897/158877Test; WOS:000284250800009 |
| DOI: | 10.1016/j.chemosphere.2010.08.049 |
| الإتاحة: | https://doi.org/20.500.11897/158877Test https://doi.org/10.1016/j.chemosphere.2010.08.049Test https://hdl.handle.net/20.500.11897/158877Test |
| رقم الانضمام: | edsbas.6EDE241B |
| قاعدة البيانات: | BASE |
| تدمد: | 00456535 |
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| DOI: | 10.1016/j.chemosphere.2010.08.049 |