The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.
Sedimentary Records of DDT and HCH in the Pearl River Delta, South China
Abstract
Tropical regions in developing countries are thought to be significant sources of organochlorine pesticides in the global context, owing to high rate of use and only a recent production ban or restriction on application of these pesticides. In the present paper, DDT and HCH in eight 210Pb-dated sedimentary cores from the Pearl River Delta, South China, were analyzed in order to reconstruct the time trends of these persistent organic pollutants in this tropical region. The sedimentary inventories of sigmaDDT and sigmaHCH through the cores ranged from 36.6 to 1109.5 ng/cm2 and from 11.2 to 226.3 ng/cm2, respectively, and their spatial distribution implies that the water flows from the Humen, Jiaomen, Hongqili, and Hengmen outlets rather than the Xijiang flow from Modaomen outlet, supplied the major historical input of DDT to the estuary. Although a production ban of technical HCH and DDT was imposed in China in 1983, their sedimentary fluxes display increasing trends or strong rebounds in the 1990s as recorded in the core profiles, characteristic of the increasing ratios of (DDE + DDD)/DDT and DDE/DDT. It is suggested that an enhanced land soil runoff in the process of large-scale land transform, as well as a higher river water flow in early 1990s, had mobilized these pesticides from soil to the sedimentary system in the region.
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Cites
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Cited by
Mai, Chen, Luo, Chen, Yang, Sheng, Peng, Fu, & Zeng, E. Y. (2005) · Environmental Science & Technology · doi:10.1021/es048083x · Cited by 548
Persistent organic pollutants in environment of the Pearl River Delta, China: an overview
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Metadata
- Authors
- Zhang, G., Parker, A., House, A., Mai, B., Li, X., Kang, Y., & Wang, Z.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2002-07-20
- Volume
- 36
- Issue
- 17
- Pages
- 3671-3677
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W1988272674
- Cited by
- 360
- References
- 7
- FWCI
- 7.65
- Type
- journal article
- Language
- en
- Open access
- closed
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