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| DOI | 10.1016/j.atmosenv.2021.118450 |
| Air quality impacts of the 2019–2020 Black Summer wildfires on Australian schools | |
| Di Virgilio G.; Hart M.A.; Maharaj A.M.; Jiang N. | |
| 发表日期 | 2021 |
| ISSN | 1352-2310 |
| 卷号 | 261 |
| 英文摘要 | The 2019–2020 Black Summer wildfires wrought destruction across Australia and exposed millions of people to air pollution. Using a new school-based observational network alongside long-standing observations, we provide the first assessment of spatiotemporal variations in Black Summer's air pollution impacts across Sydney, including how meteorology modulated the severity and timing of these episodes. Throughout the summer, hourly fine particulate matter (PM2.5) concentrations at schools often exceeded 25 μg m−³ (i.e. the national daily average standard for PM2.5) for up to 8 h, with PM2.5 spikes frequently reverberating across Sydney, creating city-wide impacts. However, timing and magnitude varied markedly with location, and a geographic sequence of impacts was evident, reflecting smoke transport by the passage of synoptic features, especially pre-frontal troughs. Temperature, dew point temperature, and air pressure had significant, mainly positive non-linear associations with PM2.5, whereas negative relative humidity‒PM2.5 associations increased in strength at ~70% humidity, and negative wind speed‒PM2.5 associations reversed at higher speeds reflecting increased synoptic-scale advection of PM2.5. This study provides insights into the complex spatiotemporal variations in air pollution during wildfires and the corresponding influential meteorological factors. Together, these insights can inform improvements in air quality forecasting and support planning to reduce exposure to smoke emissions, thus increasing the preparedness requirements of society to mitigate the impacts of severe wildfires. © 2021 The Authors |
| 关键词 | Air pollutionClimate changeHealth impactsMeteorologyNatural hazardsPM2.5 |
| 语种 | 英语 |
| scopus关键词 | Air quality; Fires; Health hazards; Smoke; Wind; Air pollution impact; Air quality impacts; Australia; Fine particulate matter; Geographics; Health impact; Natural hazard; PM$-2.5$; Smoke transport; Spatio-temporal variation; Climate change; air quality; atmospheric pollution; dew point; particulate matter; smoke; spatiotemporal analysis; student; wildfire; advection; air pressure; air quality; article; climate change; dew point temperature; forecasting; human; meteorology; particulate matter 2.5; relative humidity; smoke; spike; summer; wildfire; wind speed; Sydney [New South Wales]; Elliptio dilatata |
| 来源期刊 | ATMOSPHERIC ENVIRONMENT
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/248337 |
| 作者单位 | Department of Planning, Industry and Environment, State of New South Wales, Sydney, Australia; Climate Change Research Centre, University of New South Wales, Sydney, Australia; Australian Research Council Centre of Excellence for Climate Extremes, University of New South Wales, Sydney, Australia |
| 推荐引用方式 GB/T 7714 | Di Virgilio G.,Hart M.A.,Maharaj A.M.,等. Air quality impacts of the 2019–2020 Black Summer wildfires on Australian schools[J],2021,261. |
| APA | Di Virgilio G.,Hart M.A.,Maharaj A.M.,&Jiang N..(2021).Air quality impacts of the 2019–2020 Black Summer wildfires on Australian schools.ATMOSPHERIC ENVIRONMENT,261. |
| MLA | Di Virgilio G.,et al."Air quality impacts of the 2019–2020 Black Summer wildfires on Australian schools".ATMOSPHERIC ENVIRONMENT 261(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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