净水技术2024，Vol.43Issue(6)：153-160,8.DOI:10.15890/j.cnki.jsjs.2024.06.018
加油站地下水中甲基叔丁基醚污染特征
Pollution Characteristics of Methyl Tert-Butyl Ether in Ground water of Gas Stations
摘要
Abstract
In order to investigate the pollution characteristics of methyl tert-butyl ether(MTBE)in groundwater of gas station,one year system monitoring of MTBE in groundwater around 71 gas stations in 14 administrative regions of Shanghai was conducted.The monitoring results showed that MTBE was generally detected in the groundwater of gas stations in most districts of Shanghai.The detection mass concentration range of MTBE was ND～11 919 μg/L(ND indicated not detected)and the MTBE concentration showed significant difference among various points.The total detection and the over-standard rate of MTBE was 83.1％and 33.8％,respectively.From the first quarter to the fourth quarter,the detection rate and the over-standard rate of MTBE showed an increasing trend,indicating that the pollution level of MTBE in groundwater was gradually increasing.At the same time,MTBE concentration in groundwater was highly positively correlated with petroleum hydrocarbon concentration,indicating that MTBE pollution may be caused by oil leak during storage and use process.The health risk assessment results of 24 MTBE exceeding standard points showed that,from the first quarter to the fourth quarter,the concentration of MTBE had exceeded the health risk threshold for 11 times,probably threatening to human health.The MTBE concentration got close to the critical value for two times,being a warning sign.The risk of MTBE to human health was gradually increasing over time.Also,a risk assessment was conducted on the MTBE concentration in groundwater,and the MTBE risk control value was determined to be 1.9 μg/L.关键词
甲基叔丁基醚/加油站/地下水/健康风险/吹扫捕集/气相色谱-质谱法Key words
methyl tert-butyl ether(MTBE)/gas station/groundwater/human health risk/purge and trap/gas chromatography-mass spectrometry分类
环境科学引用本文复制引用
陈斐,胡丽雅..加油站地下水中甲基叔丁基醚污染特征[J].净水技术,2024,43(6):153-160,8.基金项目
上海市2020年度"科技创新行动计划"社会发展科技攻关项目(20dz1204500) （20dz1204500）
