工业区河流沉积物中有机氯农药的存在情况
Occurrence of organochlorine pesticides in stream sediments from an industrial area.
作者信息
González-López N, Rial-Otero R, Cancho-Grande B, Simal-Gándara J, Soto-González B
机构信息
Nutrition and Bromatology Group, Analytical and Food Chemistry Department, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, 32004, Ourense, Spain.
出版信息
Arch Environ Contam Toxicol. 2005 Apr;48(3):296-302. doi: 10.1007/s00244-004-0070-8. Epub 2005 Jan 4.
Contaminated stream sediments are a serious problem because contaminant residues will be persistent for a long time. Organochlorine pesticides (OCPs) were screened in stream sediments collected along stream flows close to an industrial area in northwestern Spain. Analyses were performed by extraction with organic solvents followed by gas chromatography-mass spectrometry detection. OCPs such as hexachlorobenzene, hexachlorocyclohexane (alpha and beta isomers) and DDT were detected at levels ranging between 29 and 392 microg/kg indicating there is a moderate to severe pollution in the area even though they were banned a few decades ago.
受污染的河流沉积物是一个严重问题，因为污染物残留会长期存在。对西班牙西北部一个工业区附近沿河流采集的沉积物进行了有机氯农药（OCPs）筛查。采用有机溶剂萃取后，通过气相色谱 - 质谱检测进行分析。检测到六氯苯、六氯环己烷（α和β异构体）以及滴滴涕等有机氯农药的含量在29至392微克/千克之间，这表明尽管这些农药在几十年前就已被禁用，但该地区仍存在中度至重度污染。
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