【作者】 焦荔； 祁国伟；

【Author】 Jiao li Qi Guo-wei Hangzhou Municipal Environmental Monitoring Center,Hangzhou 310007

【机构】 杭州市环境监测中心站；

【摘要】 2001年2月至2002年4月在5个空气质量国控点采集176组 PM₁₀样品,分析有机碳（OC）和元素碳（EC） 含量。并在5个国控点位采用 TEOM 法同步监测 PM₁₀质量浓度。其中在卧龙桥国控点对 PM_2．5和 PM₁₀同步质量浓度监测。全市 PM₁₀年日均浓度为119．2μg·m^-3。PM_2．5年日均浓度为68μg/m³。PM_2．5/PM₁₀日浓度比值范围在0．31-0．95 间变化,平均比值0．62。PM_2．5与 PM₁₀质量浓度呈显著的线性关系。OC 和 EC 浓度分别为20．4 μg·m^-3和4．0 μg·m^-3, 其相关性不好表明碳的来源复杂。SOC 分别占各季 OC 的37．2%,47．0%,57．8%,43．7%。更多还原

【Abstract】 A total of 176 sets of PM10 samples have been collected at five automatic stations of air quality monitoring network in Hangzhou city from February 2001 to April 2002.The concentrations of mass,organic carbon and elemental carbon have been analyzed.The annual mean concentrations for PM10 are 119.2μg·m-3,for PM2.5 are 68μg/m3.The annual average ratio PM2.5/PM10 is 0.62,vails within 0.31-0.95 for four seasons.The average concentrations of OC and EC are 20.4μg·m-3 and 4.0μg·m-3,respectively.The relationship of OC and EC is not good,implying the complex sources of OC and EC.SOC consisted of 37.2%,47.0%,57.8%,43.7%OC during four seasons.更多还原