摘要
目的:鉴别太原市大气总悬浮颗粒物的主要来源。方法:用原子吸收分光光度法测定了太原市大气总悬浮颗粒物(TSP)中16种化学元素的含量,用化学元素平衡法对太原市大气总悬浮颗粒物的污染来源进行了追踪研究。结果:太原市5个主要污染源对大气总悬浮颗粒的贡献分别为:土壤冬季35.20%,夏季58.79%;燃煤冬季40.80%,夏季14.26%;建筑材料冬季10.00%,夏季16.36%;冶金冬季10.19%,夏季6.91%;汽车燃油冬季3.81%,夏季1.68%。结论:太原市5个主要污染源中,土壤和燃煤尘对大气总悬浮颗粒的贡献最大,其次是建筑材料和冶金,汽车燃油贡献最小。
Objective:To identify the source of atmospheric particles in a city.Method:Total suspended particulate(TSP)samples were collected at six sites and analyzed for16elements by atomic absorption spectrophotometry.The pollution patterns were interpreted by using chemical element balances(CEBs )for five sources:soil,coal,limestone,metallurgical industry and motor-vehicle emissions.Results:In five sources,soil,coal,limestone,metallurgical industry and motor-vehicle emissions amount to35.2%,40.80%,10.00%,10.19%and3.81%in winter;58.79%,14.26%,16.36%,6.91%and1.68%in summer.Conclu sion:Soil and coal made thegreatest contribution to the primary TSP.Limestone and metallurgical industry made less pollution than soil and coal,motor-vehicle emissions made the least contribution to the primary TPS in the city.
出处
《海南医学院学报》
CAS
2003年第4期193-197,共5页
Journal of Hainan Medical University
