当前位置： SCI文献检索 > ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY期刊下所有文献 > Evaluating the fate of p,p'-DDT in Tianjin, China using a non-steady-state multimedia fugacity model.

Evaluating the fate of p,p'-DDT in Tianjin, China using a non-steady-state multimedia fugacity model.

Abstract：

:Studies showed that DDT levels were still high in Tianjin, China, even though its use was banned in 1983. To estimate current risk of DDT to human health in Tianjin area, a non-steady-state (Level IV) multimedia fugacity model was used to simulate the fate and transfer of p,p'-DDT before and after the ban. The ordinary linear equations of Level IV model were solved with a matrix approach. The calculated p,p'-DDT concentration in air, water, soil, and sediment reached a maximum in the 1980s and then decreased, and agree well with those measured. The biggest bulk sinks of p,p'-DDT were soil and sediment, which accounted for 90% of total amount of p,p'-DDT in the environment. Air deposition and diffusions through the interfaces of water-air and water-sediment were the major intermedia transfer processes, while the degradation in soil and sediment were the key eliminating routes for p,p'-DDT in the environment.

journal_name

Ecotoxicol Environ Saf

journal_title

Ecotoxicology and environmental safety

authors

Li Q,Zhu T,Qiu X,Hu J,Vighi M

doi

10.1016/j.ecoenv.2005.06.003

keywords:

subject

Has Abstract

pub_date

2006-02-01 00:00:00

pages

196-203

issue

2

eissn

0147-6513

issn

1090-2414

pii

S0147-6513(05)00145-4

journal_volume

63

pub_type

杂志文章

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