Particulate PAH Transport Associated with Adult Chronic Cough Occurrence Closely Connected with Meteorological Conditions: A Modelling Study

Atmosphere

卷:12

Hiroyuki Nakamura¹  Nguyen Thao¹  Masato Takeda²  Takafumi Seto²  Kazuichi Hayakawa³  Yayoi Inomata³  Mizuo Kajino⁴ 

[1] Department of Environmental and Preventive Medicine, Kanazawa University, 13-1, Takara-machi, Kanazawa 920-8640, Japan;

[2] Frontier Engineering, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan;

[3] Institute of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan;

[4] Meteorological Research Institute, 1-1, Nagamine, Tsukuba 305-0052, Japan;

关键词: polycyclic aromatic hydrocarbons;    PM_2.5;    chronic cough;    chemical transport model;    health risk;   

DOI  :  10.3390/atmos12091163

来源: DOAJ

【 摘 要 】

Exposure to polycyclic aromatic hydrocarbons (PAHs) are a cause of chronic cough occurrence in adult patients. In order to clear the relationship between transboundary transport of PAH and health effects, this study investigates the relationship between atmospheric particulate PAHs (p-PAHs), cough occurrence by epidemiological research, and meteorological conditions using a chemical transport model. Source receptor relationship (SRR) analysis revealed that a higher cough occurrence was caused by exposure to high p-PAH levels in air masses transported from central China (CCHN, 30–40° N) under westerly conditions. The p-PAHs transported from northern China (NCHN, >40° N) and the eastern part of Russia (ERUS) under north-westerly conditions also contributed to cough occurrence. The low equivalent potential temperature (ePT) and geopotential height anomaly suggested that the p-PAHs emitted near the surface were suppressed to upward transport under the colder air mass but were instead transported horizontally near the surface in the boundary layer, resulting in high p-PAH concentrations arriving in Kanazawa. Our study’s findings suggest that the air mass transport pattern associated with meteorology strongly influences the high p-PAH concentrations causing adult chronic cough occurrence.

【 授权许可】

Unknown