کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4427341 1309154 2006 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Source and persistence of pesticides in a semi-confined chalk aquifer of southeast England
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Source and persistence of pesticides in a semi-confined chalk aquifer of southeast England
چکیده انگلیسی

Pesticide contamination in groundwater is an increasing problem that poses a significant long-term threat to water quality. Following the detection of elevated concentrations of diuron in boreholes in a semi-confined chalk aquifer from southeast England, a sampling programme was undertaken. Between 2003 and 2004 diuron was observed in 90% of groundwaters analysed. In 60% of groundwater samples metabolites of diuron were more prevalent than the parent compound. Longer-term (1989–2005) monitoring shows that pollution of the aquifer by atrazine, simazine, and more recently diuron, shows a positive correlation with periods of high groundwater levels. Results from groundwater residence time indicators suggest that the highest diuron concentrations are associated with waters containing the greatest proportion of recent recharge. There is some evidence to indicate that diuron occurrence can be spatially related to areas of urban and industrial development and is probably correlated with amenity usage.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 144, Issue 3, December 2006, Pages 1031–1044
نویسندگان
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