【摘要】 本研究采用主动采样技术历时一年连续采集大气TSP样品,利用GC-MS分析测试TSP中16-PAHs的质量浓度,分析大气TSP中PAHs的浓度变化特征,成分谱分布规律。研究结果表明:成都TSP中PAHs浓度范围为15.75~295.63 ng/m3,年平均浓度及标准偏差为82.16±53.31 ng/m3,在Spearman相关检验中TSP中PAHs浓度与气温呈显著的负相关性,相关系数为:-0.6855,TSP中PAHs与TSP质量浓度成正相关关系,相关系数为:0.7186,全年大气TSP中PAHs浓度呈现出冬季>春季>秋季≈夏季的季节变化特征。更多还原

【Abstract】 This research adopts the active sampling technology lasted a year continuous air TSP samples, using GC-MS analysis 16-PAHs in the TSP,analyzing the characteristic of PAHs concentration in TSP of and composition spectrum distribution.. The results show that the concentration range of PAHs is 15.75 ~295.63 ng/m3,the mean total concentration of PAHs is 82.16±53.31 ng/m3.The PAHs concentration was significantly negatively correlated with temperature in Spearman’s test, Correlation coefficient:-0.6855, PAHs are positively correlated with TSP, and the correlation coefficient is 0.7186, The seasonal varation of PAHs for the whole year is:winter >spring >autum-n≈summer.更多还原