Time Series Analysis of Climate and Air Pollution Factors Associated with Atmospheric Nitrogen Dioxide Concentration in Japan
Bibliographic Data
| ID | 15465653 |
|---|---|
| Authors | Takeshi Miyama (0000-0003-4598-902X, Osaka Prefectural Institute of Public Health, corresponding author), Hiroshi Matsui (0000-0001-7585-7699, Osaka Prefectural Institute of Public Health), Kenichi Azuma (0000-0002-6382-9807, Kindai University), Chika Minejima (International Christian University), Yasuyuki Itano (0009-0003-5109-4756, Osaka City Research Center of Environmental Science, Osaka 543-0026, Japan), Norimichi Takenaka (0000-0002-2499-5546, Osaka Prefecture University), Masayuki Ohyama (Osaka Prefectural Institute of Public Health) |
| Year | 2020 |
| Volume | 17 |
| Issue | 24 |
| Pages | 9507-9507 |
| Publication date | 2020-12-18 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | International Journal of Environmental Research and Public Health (JOURNAL) |
| Journal identifiers | ISSN: 1661-7827 • E-ISSN: 1660-4601 |
| Publisher | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/ijerph17249507 |
| PMID | 33353021 |
| OpenAlex | W3112750488 |
| Language | EN |
| References cited | 16 |
Nitrogen dioxide (NO 2 ) is an air pollutant discharged from combustion of human activities. Nitrous acid (HONO), measured as NO 2 , is thought to impact respiratory function more than NO 2 . HONO and NO 2 have an equilibrium relationship, and their reaction is affected by climate conditions. This study was conducted to discuss the extent of HONO contained in NO 2 , depending on the level of urbanization. Whether climate conditions that promote HONO production enhanced the level of NO 2 measured was investigated using time series analysis. Climate and outdoor air pollution data measured in April 2009-March 2017 in urban (Tokyo, Osaka, and Aichi) and rural (Yamanashi) areas in Japan were used for the analysis. Air temperature had a trend of negative associations with NO 2 , which might indicate the decomposition of HONO in the equilibrium between HONO and NO 2 . The associations of relative humidity with NO 2 did not have consistent trends by prefecture: humidity only in Yamanashi was positively associated with NO 2 . In high relative humidity conditions, the equilibrium goes towards HONO production, which was observed in Yamanashi, suggesting the proportion of HONO in NO 2 might be low/high in urban/rural areas
Air pollution · Atmospheric sciences · Carbon dioxide · Climate change · Geography · Humidity · Meteorology · Nitrogen · Nitrogen dioxide · Pollutant · Relative humidity · Urbanization · Air Quality and Health Impacts · Air Quality Monitoring and Forecasting · Atmospheric chemistry and aerosols · Chemistry · Environmental Science · Ecology · Pollution
| Highly cited | No |
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