THE HISTORY OF A CHLORPYRIFOS SPILL - CARTAGENA, COLOMBIA

被引:14
作者
COWGILL, UM
GOWLAND, RT
RAMIREZ, CA
FERNANDEZ, V
机构
[1] Environmental Toxicology and Chemistry Research Laboratory, The Dow Chemical Company, Midland
[2] Agricultural Chemicals Technology Center, The Dow Chemical Company, Midland, MI
[3] Dow Quimica de Colombia, Cartagena
关键词
Coastal Zones--Columbia - Hazardous Materials--Spills - Water Pollution--Marine Pollution;
D O I
10.1016/0160-4120(91)90338-Q
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Due to an operational error, a small amount of chlorpyrifos (an organophosphorus compound) entered the marine bay of Cartegena, Colombia. The resulting fish kill was extensive (17 tons). To hasten the degradation process, the contaminated sediment, the main source of chlorpyrifos to the Bay, was periodically removed. In addition, the exact amount spilled is unknown. Thus, rates of disappearance can only estimated. Under the physical conditions in the Bay of Cartagena, the half-life in water is about 9 days and in fish 11 days. The Bay showed considerable recovery from the biological and chemical effects of the chlorpyrifos spill in 23 days, i.e., chlorpyrifos was below the limits of detection (at or <0.3 μg/L) in the water. During days 3-6 of this study, residue levels in live fish caught were below the level that would cause a human health problem upon their consumption. © 1990.
引用
收藏
页码:61 / 71
页数:11
相关论文
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