德克萨斯州墨西哥湾沿岸东南部含水层的石油生产、农业与地下水质量

Oil production, agriculture, and groundwater quality in the southeastern Gulf Coast Aquifer, Texas.

作者信息

Hudak P F, Wachal D J

机构信息

Department of Geography, University of North Texas, Denton, USA.

出版信息

Environ Monit Assess. 2001 Dec;72(3):249-64. doi: 10.1023/a:1012093020496.

DOI:10.1023/a:1012093020496

PMID:11720227

Abstract

Associations between groundwater quality and land use were evaluated in the southeastern Gulf Coast Aquifer, Texas. Data from 19234 oil/gas wells and 256 water wells were mapped with a geographic information system (GIS) and statistically analyzed. Water wells near oil/gas wells had significantly higher levels of chloride, bromide, and total dissolved solids (TDS). Bromide-chloride ratios were also higher at water wells near oil/gas wells. Shallower water wells had significantly higher chloride, bromide, TDS, and nitrate concentrations. Nitrate concentrations were higher beneath cropland compared to other land uses. Results of this study suggest that oil/gas production and agriculture have impacted water quality in the Gulf Coast Aquifer.

摘要

对得克萨斯州墨西哥湾沿岸含水层东南部的地下水质量与土地利用之间的关系进行了评估。利用地理信息系统（GIS）绘制了19234口油/气井和256口水井的数据，并进行了统计分析。靠近油/气井的水井中氯化物、溴化物和总溶解固体（TDS）的含量显著更高。靠近油/气井的水井中溴化物与氯化物的比率也更高。较浅的水井中氯化物、溴化物、TDS和硝酸盐的浓度显著更高。与其他土地利用类型相比，农田下方的硝酸盐浓度更高。本研究结果表明，石油/天然气生产和农业活动已经对墨西哥湾沿岸含水层的水质产生了影响。