[PAHs in airborne particles from Tianjin in winter season].
Total suspended particles (TSP) samples from 13 stations in Tianjin were collected and analyzed for polycyclic aromatic hydrocarbons (PAHs) during 2002 winter. There was significant difference in total PAH concentration among 13 samples. TSP samples from the east Economic Development Area and mid-north districts had the highest contents of PAHs, while Dagang Oil Field had the lowest PAH content. The urban area, south district, and Jixian county had the moderate contents of PAHs. Based on the measured concentration of the PAHs, BaP equivalent (BaPeq) were derived based on Toxicity Equivalent Factors (TEFs) of the PAHs. The total BaPeq values were similar among the samples. The contribution of PAHs with five or six rings contributed 90% of the total toxicity, while they accounted for only 50% of the total concentration.
Wu
Shui-ping
SP
Laboratory for Earth Surface Processes, College of Environ. Sci., Peking University, Beijing 100871, China.
Zuo
Qian
Q
Lan
Tian
T
Deng
Hui-wen
HW
Li
Ben-gang
BG
Xu
Fu-liu
FL
Shen
Wei-ran
WR
Qin
Bao-ping
BP
Sun
Ren
R
Tao
Shu
S
D000393:Air Pollutants / Q000032:analysis*; D002681:China; D010316:Particle Size; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D012621:Seasons
D000393:Air Pollutants; D011084:Polycyclic Aromatic Hydrocarbons