کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9451721 | 1618881 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Organochlorinated pesticides in sediments from the Lake Albufera of Valencia (Spain)
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Bottom sediment samples from 121 sites of the Lake Albufera of Valencia were analyzed. Dieldrin, endrin, heptachlor and opâ²-DDT were not detected (<0.01 ng gâ1) in 88-93% of the sites. Aldrin and HCB concentration ranges were between <0.01 and 0.1 ng gâ1 in 86% and 94% of the sites, respectively. Heptachlor-epoxide and lindane 95% confidence intervals were 0.2-0.5 and 0.06-0.12, respectively. The greatest average concentration corresponds to ppâ²-DDE, ppâ²-DDD and ppâ²-DDT. The sum of six isomers and derivatives of the DDT average concentration reaches 2.1 ng gâ1, as opposed to 2.7 ng gâ1 for the sum of 13 pesticides considered. In the site with a major contamination, 27.0 ng gâ1 of ppâ²-DDD and 12.8 ng gâ1 of ppâ²-DDT were accumulated. The DDE:DDT proportion average was 0.37, indicating an aged DDT contamination. Concentrations of pesticides in sediments were compared to three sediment quality guidelines, and indicated that a low biological effects level can be expected in either sediments or aquatic organisms.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 60, Issue 11, September 2005, Pages 1542-1549
Journal: Chemosphere - Volume 60, Issue 11, September 2005, Pages 1542-1549
نویسندگان
E. Peris, S. Requena, M. de la Guardia, A. Pastor, J.M. Carrasco,