کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9456159 1309173 2005 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Survival, Pb-uptake and behaviour of three species of earthworm in Pb treated soils determined using an OECD-style toxicity test and a soil avoidance test
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Survival, Pb-uptake and behaviour of three species of earthworm in Pb treated soils determined using an OECD-style toxicity test and a soil avoidance test
چکیده انگلیسی
Mature (clitellate) Eisenia andrei Bouché (ultra epigeic), Lumbricus rubellus Hoffmeister (epigeic), and Aporrectodea caliginosa (Savigny) (endogeic) earthworms were placed in soils treated with Pb(NO3)2 to have concentrations in the range 1000 to 10 000 mg Pb kg−1. After 28 days LC50−95%confidence limit+95%confidence limit values were E. andrei5824−361+898 mg Pb kg−1, L. rubellus2867−193+145 mg Pb kg−1 and A. caliginosa2747−304+239 mg Pb kg−1 and EC50s for weight change were E. andrei2841−68+150 mg Pb kg−1, L. rubellus1303−201+240 mg Pb kg−1 and A. caliginosa1208−206+212 mg Pb kg−1. At any given soil Pb concentration, Pb tissue concentrations after 28 days were the same for all three earthworm species. In a soil avoidance test there was no difference between the behaviour of the different species. The lower sensitivity to Pb exhibited by E. andrei is most likely due to physiological adaptations associated with the modes of life of the earthworms, and could have serious implications for the use of this earthworm as the species of choice in standard toxicological testing.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 138, Issue 2, November 2005, Pages 368-375
نویسندگان
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