Long-Lived Pollutants in Sediments from the Laguna Atascosa National Wildlife Refuge, Texas

WAYNE M. AHR

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Long-Lived Pollutants in Sediments from the Laguna Atascosa National Wildlife Refuge, Texas

机译：得克萨斯州拉古纳·阿塔斯科萨国家野生动物保护区沉积物中的长寿命污染物

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DDT and some heavy metals are long-lived pollutants which may be retained in sedimentary layers and may be relocated by post-depositional biological or mechanical processes. Because DDT has a half life of up to 17 yr and it is concentrated in higher ecological levels, even a few parts per billion in the sedimentary substrate can be harmful to wildlife. The potential danger and the persistence of many long-lived pollutants create a genuine need for environmental studies made by geologists.

机译：滴滴涕和某些重金属是长期存在的污染物，可能会保留在沉积层中，并可能通过沉积后的生物或机械过程进行迁移。由于滴滴涕的半衰期长达17年，并且集中在较高的生态水平，因此沉积物中的十亿分之几甚至可以使得真正需要地质学家进行环境研究。

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《GSA Bulletin》 |1973年第8期|2511-2516|共6页
作者
WAYNE M. AHR;
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Department of Geology, Texas A&M University, College Station, Texas 77843;

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Long-Lived Pollutants in Sediments from the Laguna Atascosa National Wildlife Refuge, Texas

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