Muralidharan S, Dhananjayan V, Risebrough Robert, Prakash V, Jayakumar R, Bloom Peter H
Division of Ecotoxicology, Sálim Ali Centre for Ornithology and Natural History, Coimbatore, India.
Bull Environ Contam Toxicol. 2008 Dec;81(6):561-5. doi: 10.1007/s00128-008-9529-z. Epub 2008 Sep 20.
Organochlorine pesticide residues were determined in tissues of five Indian white-backed vultures and two of their eggs collected from different locations in India. All the samples had varying levels of residues. p,p'-DDE ranged between 0.002 microg/g in muscle of vulture from Mudumali and 7.30 microg/g in liver of vulture from Delhi. Relatively higher levels of p,p'-DDT and its metabolites were documented in the bird from Delhi than other places. Dieldrin was 0.003 and 0.015 microg/g while p,p'-DDE was 2.46 and 3.26 microg/g in egg one and two respectively. Dieldrin appeared to be lower than the threshold level of 0.5 microg/g. p,p'-DDE exceeded the levels reported to have created toxic effects in eggs of other wild birds. Although varying levels of DDT, HCH, dieldrin, heptachlor epoxide and endosulfan residues were detected in the vulture tissues, they do not appear to be responsible for the present status of population in India.
对从印度不同地点采集的五只印度白背兀鹫及其两枚卵的组织进行了有机氯农药残留检测。所有样本的残留水平各不相同。p,p'-滴滴伊的含量在穆杜马里兀鹫肌肉中的为0.002微克/克，在德里兀鹫肝脏中的为7.30微克/克。德里的兀鹫体内p,p'-滴滴涕及其代谢物的含量相对高于其他地方。狄氏剂在第一枚和第二枚卵中的含量分别为0.003微克/克和0.015微克/克，而p,p'-滴滴伊分别为2.46微克/克和3.26微克/克。狄氏剂含量似乎低于0.5微克/克的阈值水平。p,p'-滴滴伊超过了据报道对其他野生鸟类卵产生毒性作用的水平。尽管在兀鹫组织中检测到了不同水平的滴滴涕、六氯环己烷、狄氏剂、环氧七氯和硫丹残留，但它们似乎并非导致印度目前兀鹫种群现状的原因。
