Impact of uncertainty in soil, climatic, and chemical information in a pesticide leaching assessment

被引：57

作者：

Loague, K. ^{[1
]}

Green, R.E. ^{[1
]}

Giambelluca, T.W. ^{[1
]}

Liang, T.C. ^{[1
]}

Yost, R.S. ^{[1
]}

机构：

[1] Department of Plant and Soil Biology, University of California, Berkeley, CA 94720, United States

来源：

Journal of Contaminant Hydrology | 1990年 / 5卷 / 02期

关键词：

Meteorology--Climatology - Organic Chemicals--Leaching - Soils - Water Resources--Groundwater - Water; Underground--Contamination;

D O I：

10.1016/0169-7722(90)90004-Z

中图分类号：

学科分类号：

摘要：

A simple mobility index, when combined with a geographic information system, can be used to generate rating maps which indicate qualitatively the potential for various organic chemicals to leach to groundwater. In this paper we investigate the magnitude of uncertainty associated with pesticide mobility estimates as a result of data uncertainties. Our example is for the Pearl Harbor Basin, Oahu, Hawaii. The two pesticides included in our analysis are atrazine (2-chloro-4-ethylamino-6-isopropylamino-s-triazine) and diuron [3-(3,4-dichlorophenyul)-1,1-dimethylarea]. The mobility index used here is known as the Attenuation Factor (AF); it requires soil, hydrogeologic, climatic and chemical information as input data. We employ first-order uncertainty analysis to characterize the uncertainty in estimates of AF resulting from uncertainties in the various input data. Soils in the Pearl Harbor Basin are delineated at the order taxonomic category for this study. The results indicate significant uncertainty in estimates of pesticide mobility.

引用

页码：171 / 194