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| DOI | 10.1007/s11869-024-01563-w |
| Long term trends in global air pollution potential and its application to ventilation corridors | |
| 发表日期 | 2024 |
| ISSN | 1873-9318 |
| EISSN | 1873-9326 |
| 英文摘要 | Air pollution potential is a measure of the inability of the atmosphere to disperse pollutants away from the source. It depends on Planetary Boundary Layer Height (PBLH) and wind speed. Global air pollution potential Index (APPI) maps have been generated for the first time using 40 years (1980-2019) of PBLH and wind speed data available from ECMWF Reanalysis v5 (ERA5) data. These are useful for identifying ventilation corridors and for sustainable development. The seasonal climatology of APPI is also analyzed. Long-term trends in Ventilation coefficient (VC), PBLH, Wind speed, PM2.5, and Aerosol Optical Thickness (AOT) were analyzed globally and in over 30 cities to understand their future impact on climate change scenarios. High APPI is observed in the South Asian regions, giving rise to PM2.5 and AOT hot spots, and are naturally disadvantageous. Long-term trends in VC and associated trends in PBLH and Wind speed suggest that the PBLH is decreasing at the rate of 1-3 m per year over south Asia, and wind speed is decreasing at the rate of 0.01-0.02 m center dot s- 1per year, resulting in the decrease of VC of about 1-25 m2 center dot s- 1per year. If this trend continues, South Asia will have more air pollution potential, causing severe stagnation of air pollutants in the coming years and putting health risks to 1.8 billion people. The surface PM2.5 and AOT are increasing at 0.5-1.5 mu g center dot m- 3 per year and 0.005-0.01 per year for South Asia cities. Sustainable development goals and climate policies/negotiations should consider global air pollution potential as an essential variable in planning and mitigation. |
| 英文关键词 | Air pollution potential; Ventilation coefficient; Sustainable development; PM2.5; AOT |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| WOS记录号 | WOS:001197610200004 |
| 来源期刊 | AIR QUALITY ATMOSPHERE AND HEALTH
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/302473 |
| 作者单位 | Department of Space (DoS), Government of India; Indian Space Research Organisation (ISRO); National Remote Sensing Centre (NRSC); National University of Mongolia |
| 推荐引用方式 GB/T 7714 | . Long term trends in global air pollution potential and its application to ventilation corridors[J],2024. |
| APA | (2024).Long term trends in global air pollution potential and its application to ventilation corridors.AIR QUALITY ATMOSPHERE AND HEALTH. |
| MLA | "Long term trends in global air pollution potential and its application to ventilation corridors".AIR QUALITY ATMOSPHERE AND HEALTH (2024). |
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