Pollution Level and Distribution of PCDD/PCDF Congeners between Gas Phase and Particulate Phase in early Spring Air of Dalian, China
Pollution Level and Distribution of PCDD/PCDF Congeners between Gas Phase and Particulate Phase in early Spring Air of Dalian, China
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DOI：
10.4028/www.scientific.net/amm.71-78.2679
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发表时间：
2011-07
期刊：
影响因子：
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通讯作者：
Xiuying Zhu;Songtao Qin;Qian Xu;Yu-wen Ni;Ji Chen;Xue Ping Zhang;Wei Wang;Jun Mu
中科院分区：
文献类型：
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作者：
Xiuying Zhu;Songtao Qin;Qian Xu;Yu-wen Ni;Ji Chen;Xue Ping Zhang;Wei Wang;Jun Mu
Ambient air of Dalian was sampled with active high-volume air samplers in early spring time. The concentrations and the congeners between gas phase and particulate phase of polychlorinated dibenzo-p-dioxins and dibenzofurans(PCDD/Fs) in the air were measured. Samples analysis results showed that the concentration of PCDD/Fs in particulate phase was higher than that in gas phase. The ratio of PCDD to PCDF in gaseous phase and particulate phase was lower than 0.4. The main sources of atmospheric PCDD/Fs in Dalian early spring season were coal-related source. The total I-TEQ in gaseous phase and particulate phase was 30.3 and 143.6 fg m-3, respectively. The I-TEQ of Dalian early spring atmosphere was lower than international standard, the atmospheric quality in Dalian was better.
