What Makes the Indian Megacity Chennai’s Air Unhealthy? - A Bottom-up Approach to Understand the Sources of Air Pollutants
Abstract In recent years, air quality in Indian megacities has emerged as the most pressing global concern, with Asian megacities being the most polluted. Unlike India’s pollution capital, Delhi, Chennai is a megacity significantly impacted by industrial and transportation activities and has been de...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Springer
2024-07-01
|
| Series: | Aerosol and Air Quality Research |
| Subjects: | |
| Online Access: | https://doi.org/10.4209/aaqr.240089 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1823862795525947392 |
|---|---|
| author | Poonam Mangaraj Saroj Kumar Sahu Gufran Beig Ashirbad Mishra Som Sharma |
| author_facet | Poonam Mangaraj Saroj Kumar Sahu Gufran Beig Ashirbad Mishra Som Sharma |
| author_sort | Poonam Mangaraj |
| collection | DOAJ |
| description | Abstract In recent years, air quality in Indian megacities has emerged as the most pressing global concern, with Asian megacities being the most polluted. Unlike India’s pollution capital, Delhi, Chennai is a megacity significantly impacted by industrial and transportation activities and has been designated as a non-attainment city by the Government of India under the National Clean Air Programme. The first step towards sustained clean air is identifying the sources causing the megacity’s air quality to deteriorate. The current study is the first-ever attempt to develop bottom-up inventory at ultra-fine resolution (i.e., ~0.4 km × ~0.4 km), where the annual emission includes 39.6 Gg yr-1 of PM2.5, 65.0 Gg yr-1 of PM10, 387.3 Gg yr-1 of CO, 175.2 Gg yr-1 of NOx, 70.9 Gg yr-1 of SO2, 271.4 Gg yr-1 of VOC, 10.5 Gg yr-1 of BC, and 17.7 Gg yr-1 of OC for the base year 2020. This cutting-edge data on surface emissions with identified hotspots, would be vital tool for air quality studies and the first step towards framing mitigation strategies for sustainable air in Chennai. |
| format | Article |
| id | doaj-art-2a522a89b3f54b6582b2bc4552d0614d |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2024-07-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-2a522a89b3f54b6582b2bc4552d0614d2025-02-09T12:24:37ZengSpringerAerosol and Air Quality Research1680-85842071-14092024-07-0124911710.4209/aaqr.240089What Makes the Indian Megacity Chennai’s Air Unhealthy? - A Bottom-up Approach to Understand the Sources of Air PollutantsPoonam Mangaraj0Saroj Kumar Sahu1Gufran Beig2Ashirbad Mishra3Som Sharma4Research Institute for Humanity and NatureDepartment of Environmental Science, Berhampur UniversityNational Institute of Advanced StudiesDepartment of Environmental Science, Berhampur UniversityPhysical Research LaboratoryAbstract In recent years, air quality in Indian megacities has emerged as the most pressing global concern, with Asian megacities being the most polluted. Unlike India’s pollution capital, Delhi, Chennai is a megacity significantly impacted by industrial and transportation activities and has been designated as a non-attainment city by the Government of India under the National Clean Air Programme. The first step towards sustained clean air is identifying the sources causing the megacity’s air quality to deteriorate. The current study is the first-ever attempt to develop bottom-up inventory at ultra-fine resolution (i.e., ~0.4 km × ~0.4 km), where the annual emission includes 39.6 Gg yr-1 of PM2.5, 65.0 Gg yr-1 of PM10, 387.3 Gg yr-1 of CO, 175.2 Gg yr-1 of NOx, 70.9 Gg yr-1 of SO2, 271.4 Gg yr-1 of VOC, 10.5 Gg yr-1 of BC, and 17.7 Gg yr-1 of OC for the base year 2020. This cutting-edge data on surface emissions with identified hotspots, would be vital tool for air quality studies and the first step towards framing mitigation strategies for sustainable air in Chennai.https://doi.org/10.4209/aaqr.240089Anthropogenic sourcesEmission inventoryUrban air qualityMegacityClean airMitigation strategies |
| spellingShingle | Poonam Mangaraj Saroj Kumar Sahu Gufran Beig Ashirbad Mishra Som Sharma What Makes the Indian Megacity Chennai’s Air Unhealthy? - A Bottom-up Approach to Understand the Sources of Air Pollutants Aerosol and Air Quality Research Anthropogenic sources Emission inventory Urban air quality Megacity Clean air Mitigation strategies |
| title | What Makes the Indian Megacity Chennai’s Air Unhealthy? - A Bottom-up Approach to Understand the Sources of Air Pollutants |
| title_full | What Makes the Indian Megacity Chennai’s Air Unhealthy? - A Bottom-up Approach to Understand the Sources of Air Pollutants |
| title_fullStr | What Makes the Indian Megacity Chennai’s Air Unhealthy? - A Bottom-up Approach to Understand the Sources of Air Pollutants |
| title_full_unstemmed | What Makes the Indian Megacity Chennai’s Air Unhealthy? - A Bottom-up Approach to Understand the Sources of Air Pollutants |
| title_short | What Makes the Indian Megacity Chennai’s Air Unhealthy? - A Bottom-up Approach to Understand the Sources of Air Pollutants |
| title_sort | what makes the indian megacity chennai s air unhealthy a bottom up approach to understand the sources of air pollutants |
| topic | Anthropogenic sources Emission inventory Urban air quality Megacity Clean air Mitigation strategies |
| url | https://doi.org/10.4209/aaqr.240089 |
| work_keys_str_mv | AT poonammangaraj whatmakestheindianmegacitychennaisairunhealthyabottomupapproachtounderstandthesourcesofairpollutants AT sarojkumarsahu whatmakestheindianmegacitychennaisairunhealthyabottomupapproachtounderstandthesourcesofairpollutants AT gufranbeig whatmakestheindianmegacitychennaisairunhealthyabottomupapproachtounderstandthesourcesofairpollutants AT ashirbadmishra whatmakestheindianmegacitychennaisairunhealthyabottomupapproachtounderstandthesourcesofairpollutants AT somsharma whatmakestheindianmegacitychennaisairunhealthyabottomupapproachtounderstandthesourcesofairpollutants |