Atmospheric levels and health risk of polycyclic aromatic hydrocarbons (PAHs) bound to PM2.5 in Guangzhou, China
Atmospheric levels and health risk of polycyclic aromatic hydrocarbons (PAHs) bound to PM2.5 in Guangzhou, China
复制标题
中国广州大气中与 PM2.5 相关的多环芳烃 (PAH) 水平和健康风险
DOI：
10.1016/j.marpolbul.2015.09.014
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发表时间：
2015-11-15
影响因子：
5.8
通讯作者：
Peng, Juanying
中科院分区：
文献类型：
--
作者：
Liu, Jingjing;Man, Ruilin;Peng, Juanying
PM2.5中的多环芳烃（PAHs）对人体健康有显著的危害。本研究的目的是评估2012年6月至2013年5月从中国东南部典型城市（广州）的大气中采样的PM2. 5结合的多环芳烃的浓度和来源的发生和变化，并调查潜在的风险。PM2.5年均浓度为64.88 μ g m（-3）。PM2.5中多环芳烃的年平均浓度为33.89 ng m（-3）。苯并（a）芘（BaP）是全年所有PM2.5样本中主要的多环芳烃，约占总多环芳烃含量的8.78%。大部分多环芳烃的显着气象参数是日照时间，气压，湿度，共同代表10.7-52.4%的大气PAR浓度的方差。机动车尾气和燃煤可能是广州市PM2.5中多环芳烃的主要来源。70年的平均吸入性癌症风险（ICR）为5.98 x 10（-4）（范围为8.39 x 10（-5）至1.95 x 10（-3））。(C)2015爱思唯尔有限公司版权所有。
The polycyclic aromatic hydrocarbons (PAHs) in PM2.5 contribute significantly to health risk. The objectives of this study were to assess the occurrence and variation in the concentrations and sources of PM2.5-bound PAHs sampled from the atmosphere of a typical southeastern Chinese city (Guangzhou) from June 2012 to May 2013, with the potential risks being investigated. The annual average concentration of PM2.5 was 64.88 mu g m(-3). The annual average concentration of PAHs in PM2.5 was 33.89 ng m(-3). Benzo(a)pyrene (BaP) was found to be the predominant PAH in all PM2.5 samples throughout the year, constituting approximately 8.78% of the total PAH content. The significant meteorological parameters for most of the PAHs were sunshine time, air pressure, and humidity, together representing 10.7-52.4% of the variance in atmospheric PAR concentrations. Motor-vehicle exhaust and coal combustion were probably the main sources of PAHs in PM2.5 in Guangzhou. The average inhalation cancer risk (ICR) for a lifetime of 70 years was 5.98 x 10(-4) (ranging from 8.39 x 10(-5) to 1.95 x 10(-3)). (C) 2015 Elsevier Ltd. All rights reserved.