Clear Declining Behaviors and Causes in Atmospheric Polycyclic Aromatic Hydrocarbon Concentrations at the West End of Japan from 2017 to 2021
Source abstract
Abstract
In order to determine recent behaviors in atmospheric polycyclic aromatic hydrocarbon (PAH) concentrations at the west end of Japan and to reveal the causes of these behaviors, atmospheric PAH concentrations were measured in suburban and forest sites of Nagasaki, Japan from 2017 to 2021. The results showed that the total concentration of PAHs decreased considerably by 60% and 57% in suburban and forest sites, respectively, over this period. When analyzed by season, the rate of decrease in winter was markedly high. Therefore, the decreasing behavior in PAH concentrations in Nagasaki in recent years was considered to be mainly due to less PAHs originating from cold continental regions such as northern China. In particular, the reduction in coal and biomass combustion for winter heating in households, the efforts to improve air quality, and the limitation of economic activities in response to COVID-19 were likely responsible for the decrease in atmospheric PAH concentrations. In addition, although the PAH concentrations decreased, there was no significant change in the breakdown of the number of benzene rings in the PAH or in the attributes of their sources.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Toxic Organic Pollutants Impact · Air Quality and Health Impacts · Atmospheric chemistry and aerosols
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Faculty of Environmental Science, Nagasaki University, Nagasaki 852-8521, Japan
Graduate School of Fisheries and Environmental Sciences, Nagasaki University, Nagasaki 852-8521, Japan
References (32)
Show source-provided references
1. IARC Working Group on the Evaluation of Carcinogenic Risks to Humans (2010). IARC Monographs on the Evaluation of Carcinogenic Risks to Humans, International Agency for Research on Cancer.
2. Polycyclic aromatic hydrocarbons (PAHs), nitrated PAHs and oxygenated PAHs in ambient air of the Marseilles area (South of France): Concentrations and sources10.1016/j.scitotenv.2007.04.028 ↗
3. Polycyclic aromatic hydrocarbon exhaust emissions from different reformulated diesel fuels and engine operating conditions10.1016/j.atmosenv.2009.08.010 ↗
4. Yang, L., Suzuki, G., Zhang, L., Zhou, Q., Zhang, X., Xing, W., Shima, M., Yoda, Y., Nakatsubo, R., and Hiraki, T. (2019). The Characteristics of Polycyclic Aromatic Hydrocarbons in Different Emission Source Areas in Shenyang, China. Int. J. Environ. Res. Public Health, 16.10.3390/ijerph16162817 ↗
5. Contamination of rivers in Tianjin, China by polycyclic aromatic hydrocarbons10.1016/j.envpol.2004.07.014 ↗
6. Polycyclic aromatic hydrocarbons in wastewater, WWTPs effluents and in the recipient waters of Beijing, China10.1007/s11356-012-1435-6 ↗
7. Polycyclic aromatic hydrocarbons and organochlorine pesticides in surface water from the Yongding River basin, China: Seasonal distribution, source apportionment, and potential risk assessment10.1016/j.scitotenv.2017.11.066 ↗
8. Polycyclic aromatic hydrocarbons, black carbon, and molecular markers in soils of Switzerland10.1016/j.chemosphere.2004.06.002 ↗
9. Polycyclic aromatic hydrocarbons in urban soils of Beijing: Status, sources, distribution and potential risk10.1016/j.envpol.2010.11.003 ↗
10. Gereslassie, T., Workineh, A., Liu, X., Yan, X., and Wang, J. (2018). Occurrence and Ecological and Human Health Risk Assessment of Polycyclic Aromatic Hydrocarbons in Soils from Wuhan, Central China. Int. J. Environ. Res. Public Health, 15.10.3390/ijerph15122751 ↗
11. Background concentrations and source apportionment of polycyclic aromatic hydrocarbons in south-eastern Finland10.1016/j.atmosenv.2011.03.050 ↗
12. Ambient PM2.5-bound polycyclic aromatic hydrocarbons (PAHs) in Changhua County, central Taiwan: Seasonal variation, source apportionment and cancer risk assessment10.1016/j.envpol.2016.07.016 ↗
13. A Comparison of Particulate-Bound Polycyclic Aromatic Hydrocarbons Long-Range Transported from the Asian Continent to the Noto Peninsula and Fukue Island, Japan10.5572/ajae.2018.12.4.369 ↗
14. (2022, August 30). National Bureau of Statistics, (In Chinese).
15. (2022, August 30). China Statistical Yearbook 2021, Available online: http://www.stats.gov.cn/tjsj/ndsj/2021/indexeh.htm.
16. (2022, August 30). Ministry of the Environment_Press Release_19 March 2019, (In Japanese).
17. An investigation of transmission control measures during the first 50 days of the COVID-19 epidemic in China10.1126/science.abb6105 ↗
18. Source–Receptor Relationship Revealed by the Halted Traffic and Aggravated Haze in Beijing during the COVID-19 Lockdown10.1021/acs.est.0c04941 ↗
19. Kubo, T., Bai, W., Nagae, M., and Takao, Y. (2020). Seasonal Fluctuation of Polycyclic Aromatic Hydrocarbons and Aerosol Genotoxicity in Long-Range Transported Air Mass Observed at the Western End of Japan. Int. J. Environ. Res. Public Health, 17.10.3390/ijerph17041210 ↗
20. NOAA’s HYSPLIT Atmospheric Transport and Dispersion Modeling System10.1175/BAMS-D-14-00110.1 ↗
21. Real-time Environmental Applications and Display System: READY10.1016/j.envsoft.2017.06.025 ↗
22. Seasonal characteristics of the gaseous and particulate PAHs at a roadside station in Seoul, Korea10.1016/j.atmosres.2012.03.011 ↗
23. Wang, Y., Zhang, H., Zhang, X., Bai, P., Neroda, A., Mishukov, V.F., Zhang, L., Hayakawa, K., Nagao, S., and Tang, N. (2022). PM-Bound Polycyclic Aromatic Hydrocarbons and Nitro-Polycyclic Aromatic Hydrocarbons in the Ambient Air of Vladivostok: Seasonal Variation, Sources, Health Risk Assessment and Long-Term Variability. Int. J. Environ. Res. Public Health, 19.10.3390/ijerph19052878 ↗
24. Impact of the COVID-19 Outbreak on the Long-range Transport of Particulate PAHs in East Asia10.4209/aaqr.2020.07.0388 ↗
25. Polycyclic Aromatic Hydrocarbons in China: Will Decoupling of Their Emissions and Socioeconomic Growth Emerge?10.1029/2021EF002360 ↗
26. Variation of polycyclic aromatic hydrocarbons and nitropolycyclic aromatic hydrocarbons in airborne particulates collected in Japanese capital area J
27. PAHs in the Fraser River basin: A critical appraisal of PAH ratios as indicators of PAH source and composition10.1016/S0146-6380(02)00002-5 ↗
28. Source Diagnostics of Polycyclic Aromatic Hydrocarbons Based on Species Ratios: A Multimedia Approach10.1021/es0513741 ↗
29. PAH diagnostic ratios for the identification of pollution emission sources10.1016/j.envpol.2011.10.025 ↗
30. Status, source and health risk assessment of polycyclic aromatic hydrocarbons in street dust of an industrial city, NW China10.1016/j.ecoenv.2014.04.031 ↗
31. Atmospheric levels and health risk of polycyclic aromatic hydrocarbons (PAHs) bound to PM2.5 in Guangzhou, China10.1016/j.marpolbul.2015.09.014 ↗
32. Emission reduction of black carbon and polycyclic aromatic hydrocarbons during COVID-19 pandemic lockdown10.1007/s11869-021-01004-y ↗