کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6313647 | 1619049 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Chronic lead exposure is epidemic in obligate scavenger populations in eastern North America
ترجمه فارسی عنوان
قرار گرفتن در معرض سرب مزمن اپیدمی در جمعیت مهاجم مجرب در شرق آمریکای شمالی است
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کلمات کلیدی
قرار گرفتن در معرض سرب مزمن، مهمات سرب، اسکنر، کرکس،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
چکیده انگلیسی
Lead is a prominent and highly toxic contaminant with important impacts to wildlife. To understand the degree to which wildlife populations are chronically exposed, we quantified lead levels within American black vultures (Coragyps atratus; BLVU) and turkey vultures (Cathartes aura; TUVU), two species that are useful as environmental sentinels in eastern North America. Every individual sampled (n = 108) had bone lead levels indicative of chronic exposure to anthropogenic lead (BLVU: x¯ = 36.99 ± 55.21 mg Pb/kg tissue (± SD); TUVU: x¯ = 23.02 ± 18.77 mg/kg). Only a few showed evidence of recent lead exposure (BLVU liver: x¯ = 0.78 ± 0.93 mg/kg; TUVU liver: x¯ = 0.55 ± 0.34 mg/kg). Isotopic ratios suggested multiple potential sources of lead including ammunition, gasoline, coal-fired power plants, and zinc smelting. Black and turkey vultures range across eastern North America, from Quebec to Florida and individuals may traverse thousands of kilometers annually. The extent to which vultures are exposed suggests that anthropogenic lead permeates eastern North American ecosystems to a previously unrecognized degree. Discovery of an epidemic of chronic lead exposure in such widespread and common species and the failure of soft-tissue sampling to diagnose this pattern has dramatic implications for understanding modern wildlife and human health concerns.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environment International - Volume 79, June 2015, Pages 51-55
Journal: Environment International - Volume 79, June 2015, Pages 51-55
نویسندگان
Shannon Behmke, Jesse Fallon, Adam E. Duerr, Andreas Lehner, John Buchweitz, Todd Katzner,