Impacts of atmospheric NO2 pollution on cause-specific mortality of different diseases in exposed population in Guangzhou
CAI Dong-jie1, YANG Jun2, HUANG Lin1, CHEN Su-juan1, ZHAO Wen-long1, DONG Hang3, LIN Guo-zhen3, WANG Bo-guang1,4,5
1. Institute for Environmental and Climate Research, Jinan University, Guangzhou 511443, China; 2. School of Public Health, Guangzhou Medical University, Guangzhou 511436; 3. Guangzhou Center for Disease Control and Prevention, Guangzhou 510440; 4. Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 511443, China; 5. JNU-QUT Joint Laboratory for Air Quality Science and Management, Jinan University, Guangzhou 511443, China
Abstract：Atmospheric NO2, a major gaseous pollutant, has received increasing attentions due to its high health risk, especially to human cardiopulmonary function. However, current assessments of the health effects of NO2 mainly focused on one single disease. In this study, the generalized additive model (GAM) was used to evaluate impacts of atmospheric NO2 pollution on cause-specific mortality (Relative risk, RR) in exposed population in Guangzhou during 2011~2015, as well as its cumulative lag effects2. Furthermore, the stratified analysis was performed in the cold season (November through April) and the warm season (May to October). The results show that effects of NO2 were observed to be rapid and transient, usually lasting for four days. In lag 0~4 days when the NO2 increased by 10μg/m3, the number of non-accidental deaths increased by 2.18% (RR=1.0218; 95% CI:1.0167, 1.0270) in the full year, and 2.6% (RR=1.0260; 95% CI:1.0191, 1.0328) in the cold season and 0.57% (RR=1.0057; 95% CI:0.9952, 1.0163) in the warm season. The difference in the NO2-induced mortality risks between cold and warm seasons was statistically significant (P=0.002). Among different diseases, NO2 pollution showed the greatest influence on chronic obstructive pulmonary disease. Therefore, atmospheric NO2 pollution is still an important risk to the residents in Guangzhou. And it is necessary to strengthen the control and management of NO2 emissions and implement the early warning of NO2 pollution to protect the public health, particularly during the cold season.
蔡东杰, 杨军, 黄琳, 陈素娟, 赵文龙, 董航, 林国帧, 王伯光. 广州市大气NO2污染对暴露人群不同疾病死亡的影响[J]. 中国环境科学, 2022, 42(8): 3950-3956.
CAI Dong-jie, YANG Jun, HUANG Lin, CHEN Su-juan, ZHAO Wen-long, DONG Hang, LIN Guo-zhen, WANG Bo-guang. Impacts of atmospheric NO2 pollution on cause-specific mortality of different diseases in exposed population in Guangzhou. CHINA ENVIRONMENTAL SCIENCECE, 2022, 42(8): 3950-3956.
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