ASSESSMENT OF PESTICIDE CONTAMINATION OF GROUNDWATER IN NEW-ZEALAND .1. RANKING OF REGIONS FOR POTENTIAL CONTAMINATION

被引:18
作者
CLOSE, ME
机构
[1] Institute of Environmental Health and Forensic Sciences, Christchurch
关键词
GROUNDWATER; PESTICIDES; NEW-ZEALAND; INDEX; DRASTIC;
D O I
10.1080/00288330.1993.9516565
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
Groundwater contamination by pesticides may be affected by the amounts of pesticide used, the mobility and degradation characteristics of the pesticides, and the vulnerability of an area to pollution. An index of potential pollution was developed based on these factors, with the groundwater vulnerability being measured using the DRASTIC ranking method. Seventeen regions were selected from throughout New Zealand where significant pesticides have been applied and there is an underlying groundwater system. They were ranked according to this index of potential pollution. The sensitivity of the ranking to various formulations and weightings of the index was examined. Three regions (Poverty Bay, Te Puke, and Motueka) were generally highly ranked for a wide range of index formulations. Six of the higher-ranked regions were selected for sampling in the second phase of the study.
引用
收藏
页码:257 / 266
页数:10
相关论文
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