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Xin Wang, Zhenxing Shen, Yaling Zeng, Fobang Liu, Qian Zhang, Yali Lei, Hongmei Xu, Junji Cao and Liu Yang
Day-night PM10-bound PAHs were studied at an urban site of Xi?an from 20 December 2006 to 28 October 2007. The annual mean concentration of nighttime PAHs (285.0 ng m-3) was higher than that in daytime (239.4 ng m-3). A significant difference of PAH conc...
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