常德市油气污染排放现状及呼吸暴露风险研究  

Research on Oil and Gas Pollution Emission Status and Respiratory Exposure Risk of Gas Stations in Changde City

作　　者：史恭林 史鸿娟 屈建民 谭玮 SHI Gonglin;SHI Hongjuan;QU Jianmin;TAN Wei

机构地区：[1]湖南博联华信环保科技有限公司,湖南常德415003 [2]常德淮阳中学,湖南常德415100 [3]湖南博联检测集团有限责任公司,湖南常德415003

出　　处：《化工设计通讯》2025年第2期118-119,138,共3页Chemical Engineering Design Communications

基　　金：2022年常德市“小荷”人才项目(20220715);常德市武陵区2022年度科学技术研究与开发项目:加油站挥发性有机物(VOCs)排放现状研究(08)。

摘　　要：通过对常德市172家加油站的现场采样和实验室分析,探究了加油站VOCs排放特征、排放限值和暴露风险。结果表明:(1)本次调查的常德市加油站的VOCs实测浓度在1.225~8.355 mg/m^(3),平均浓度为3.476 mg/m^(3),超过标准限值的有10家,超标率为5.814%;(2)超过标准限值的10家加油站中有8家加油站的油气回收气液比不达标;(3)通过呼吸的日均暴露量均分布在0.040 mg/(kg·d)以内,日均暴露量均超过0.080 mg/(kg·d)。定期开展泄漏检测与修复工作(LDAR)将极大地减少人群因VOCs泄漏带来的呼吸暴露风险。Through on-site sampling and laboratory analysis of 172 gas stations in Changde City,the emission characteristics,emission limits and exposure risks of VOCs in gas stations were explored.The results showed that:①The measured concentration of VOCs in gas stations in Changde City was 1.225~8.355 mg/m^(3),and the average concentration was 3.476 mg/m^(3).Ten gas stations exceeded the standard limits,with an over-standard rate of 5.814%.②Among the 10 gas stations exceeding the standard limits,8 gas stations did not meet the standard of gas-liquid ratio of oil and gas recovery.③The average daily exposure through breathing was distributed within 0.040 mg/(kg·d),and the average daily exposure was more than 0.080 mg/(kg·d).Regular leak detection and repair(LDAR)will greatly reduce the risk of respiratory exposure caused by VOCs leakage.

关 键 词：加油站 油气污染 排放现状 呼吸暴露风险 常德市 

分 类 号：X51[环境科学与工程—环境工程]