Characteristics of ambient ozone (O3) pollution and health risks in Zhejiang Province
Characteristics of ambient ozone (O3) pollution and health risks in Zhejiang Province
复制标题
浙江省环境臭氧（O-3）污染特征及健康风险
DOI：
10.1007/s11356-017-0339-x
复制
发表时间：
2017-12-01
影响因子：
5.8
通讯作者：
Zhao, Meirong
中科院分区：
文献类型：
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作者：
Chen, Yuanchen;Zang, Lu;Zhao, Meirong
在过去的几十年里，中国的对流层臭氧在次生形成过程中急剧增加，造成了很高的健康风险。研究了2014-2016年3个城市13个站点O-3的时空分布特征。目的是阐明受其他污染物和气象参数影响的O-3环境污染特征以及接触O-3的健康后果。夏季O-3浓度明显高于冬季，且城区浓度高于农村和山区。PM2.5、NO2、SO2、风速（WS）与O-3呈负相关，CO、温度(T)、相对湿度（RH）与O-3呈正相关。在多变量分析中，太阳辐射和大气扩散状态两个独立的因素影响了O-3水平。0- 3浓度在15:00达到最高，在6:00-8:00左右达到最低，与T、WS趋势相似，与RH相反。根据剂量-反应模型，2014年浙江省暴露于O-3导致慢性阻塞性肺疾病（COPD）的相对危险度（rr）为1.0612 (CI 1.0607-1.0616)，人群归因分数（paf）为5.32% （CI 5.29-5.36%）。
Troposphere ozone, which is from secondary formation processes, has been increasing dramatically during the last decades in China, inducing high health risks. In this study, temporal and spatial distribution of O-3 was studied among 13 sites of three cities during 2014-2016. The objectives were to clarify the characteristics of the ambient pollution of O-3 under the influence from other pollutants and meteorological parameters and the health outcomes from exposure to O-3. The concentrations of O-3 during summer were much higher than those during winter, and the concentrations in downtown areas were higher than in rural or mountain areas. PM2.5, NO2, SO2, and wind speed (WS) were negatively correlated with O-3, and CO, temperature (T), and relative humidity (RH) were positively correlated with O-3. In multivariable analysis, two separate factors-solar radiation and atmospheric diffusion status, affected the O-3 levels. The concentrations of O-3 reached the highest level at 15:00 and the lowest value at about 6:00-8:00, with the similar trend to T and WS, and opposite to RH. According to the dose-response model, relative risks (RRs) and population attributable fractions (PAFs) with confidence intervals (CIs) for chronic obstructive pulmonary disease (COPD) from exposure to O-3 were 1.0612 (CI 1.0607-1.0616) and 5.32% (CI 5.29-5.36%), respectively, attributable to 2000 deaths in Zhejiang Province in 2014.