Luo Pei, Bao Lian-Jun, Li Shao-Meng, Zeng Eddy Y
State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; University of Chinese Academy of Sciences, Beijing 100049, China.
State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
Environ Pollut. 2015 May;200:10-5. doi: 10.1016/j.envpol.2015.02.007. Epub 2015 Feb 14.
Atmospheric particle size distribution of polycyclic aromatic hydrocarbons (PAHs) in a typical e-waste recycling zone and an urban site (Guangzhou) in southern China featured a unimodal peak in 0.56-1.8 μm for 4-6 ring PAHs but no obvious peak for 2-3 ring PAHs at both sites. The atmospheric deposition fluxes of PAHs were estimated at 5.4 ± 2.3 μg m(-2) d(-1) in the e-waste recycling zone and 3.1 ± 0.6 μg m(-2) d(-1) in Guangzhou. In addition, dry and wet deposition fluxes of PAHs were dominated by coarse (Dp > 1.8 μm) and fine particles (Dp < 1.8 μm), respectively. Fine particles predominated the deposition of PAHs in the lung. The results estimated by incremental inhalation cancer risk suggested that particle-bound PAHs posed serious threat to human health within the e-waste recycling zone and Guangzhou.
在中国南方一个典型的电子垃圾回收区和一个城市地点（广州），多环芳烃（PAHs）的大气粒径分布显示，对于4 - 6环PAHs，在0.56 - 1.8μm处有一个单峰，但两个地点的2 - 3环PAHs均无明显峰值。电子垃圾回收区PAHs的大气沉降通量估计为5.4±2.3μg m(-2) d(-1)，广州为3.1±0.6μg m(-2) d(-1)。此外，PAHs的干沉降通量和湿沉降通量分别以粗颗粒（Dp > 1.8μm）和细颗粒（Dp < 1.8μm）为主。细颗粒在肺部PAHs沉积中占主导地位。通过增量吸入癌症风险估算的结果表明，与颗粒结合的PAHs对电子垃圾回收区和广州内的人类健康构成严重威胁。
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