济南市环境空气中TSP和PM_(10)来源解析研究

Study on Source Appointment of TSP and PM_(10) in Air Environment in Jinan

于1999—2000年在济南市5个采样点分别采集了环境空气中的总悬浮颗粒物(TSP)和可吸入颗粒物(PM10),用化学质量平衡(CMB)受体模型和二重源解析技术解析了TSP和PM10的来源。结果表明,各主要源类对TSP的贡献率依次为:扬尘34%,煤烟尘25%,土壤风沙尘18%,机动车尾气尘6%,建筑水泥尘2%,其他15%;对PM10的贡献率依次为:扬尘30%,煤烟尘27%,土壤风沙尘15%,机动车尾气尘9%,建筑水泥尘3%,其他16%。

Samples for TSP and PM_(10) were collected from 1999 to 2000 at five sites in Jinan.The authors investigated the contributions of emission sources to TSP and PM_(10) in Jinan by chemical mass balance (CMB) and nested chemical mass balance(NCMB) receptor models.The results showed that the major contributors of TSP in Jinan include:urban resuspended dusts 34%,coal combustion 25%,soil dusts 18%,motor vehicle exhausts 6%,cement dusts 2% and unexplained mass 15%.The major sources of PM_(10) aerosols are:urban resuspended dusts 30%,coal combustion 27%,soil dusts 15%,motor vehicle exhausts 9%,cement dusts 3% and unexplained mass 16%.