Citation: Rui-Jin Li, Xiao-Jing Kou, Hong Geng, Chuan Dong, Zong-Wei Cai. Pollution characteristics of ambient PM_2.5-bound PAHs and NPAHs in a typical winter time period in Taiyuan[J]. Chinese Chemical Letters, ;2014, 25(05): 663-666. doi: 10.1016/j.cclet.2014.03.032 shu

Pollution characteristics of ambient PM_2.5-bound PAHs and NPAHs in a typical winter time period in Taiyuan

1.
a Institute of Environmental Science, Shanxi University, Taiyuan 030006, China;
2.
b State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong Special Administrative Region, China

Corresponding author: Chuan Dong, Zong-Wei Cai,
Received Date: 3 March 2014
Available Online: 17 March 2014
Fund Project: and 100 talents program of Shanxi Province. (No. 2013-16)

The pollution characteristics of ambient fine particulate matter (PM_2.5) containing polycyclic aromatic hydrocarbons (PAHs) and nitrated PAHs (NPAHs) in samples collected during a typical winter time period in Taiyuan of China were investigated. The obtained results revealed that the mean mass concentrations of PM_2.5, ΣPAHs (sum of 16 PAHs) and ΣNPAHs (sum of 3 NPAHs) on PM_2.5 were 161.4 μg/m³, 119.8 ng/m³ and 0.446 ng/m³, respectively. Diagnostic ratios of PAHs and NPAHs implied that coal consumption might be the main source of the PM_2.5 pollution. The measured PM_2.5 mass concentrations, BaP equivalent toxicity (28.632 ng/m³) and individual carcinogenicity index (3.14×10^-5) were much higher than those of the recommended safety standards.
- PM_2.5,
- PAHs,
- NPAHs,
- Taiyuan
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