Multi-platform observations and constraints reveal overlooked urban sources of black carbon in Xuzhou and Dhaka
Abstract Here we use multi-waveband single scattering albedo observations from ground-based instruments and satellite to constrain black carbon aerosol's physical properties and loading over Xuzhou, China, and Dhaka, Bangladesh. Our daily high-resolution findings reveal smaller black carbon cor...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Communications Earth & Environment |
| Online Access: | https://doi.org/10.1038/s43247-025-02012-x |
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| author | Pravash Tiwari Jason Blake Cohen Lingxiao Lu Shuo Wang Xiaolu Li Luoyao Guan Zhewen Liu Zhengqiang Li Kai Qin |
| author_facet | Pravash Tiwari Jason Blake Cohen Lingxiao Lu Shuo Wang Xiaolu Li Luoyao Guan Zhewen Liu Zhengqiang Li Kai Qin |
| author_sort | Pravash Tiwari |
| collection | DOAJ |
| description | Abstract Here we use multi-waveband single scattering albedo observations from ground-based instruments and satellite to constrain black carbon aerosol's physical properties and loading over Xuzhou, China, and Dhaka, Bangladesh. Our daily high-resolution findings reveal smaller black carbon cores and spatially variable morphology dominate both regions. Column loadings reveal higher black carbon mass in Dhaka, while higher total aerosol mass and number are observed in Xuzhou. These findings reflect differences in emission sources, atmospheric conditions, and regulatory policies. Spatial analysis reveals notable enhanced black carbon along Dhaka’s urban riverbanks (8–9 mg m−2), and over rapidly changing, small industrial sites in China, indicating overlooked sources. Complex daily interactions between wind, accumulation, and dispersion challenge traditional seasonal dynamics. These findings demonstrate high-resolution data can be tailored from available remote sensing platforms, providing nuanced insights into regional air quality, enhancing assessment capabilities and informing targeted mitigation strategies. |
| format | Article |
| id | doaj-art-65197958e9f2404a8eece3d36db73994 |
| institution | Kabale University |
| issn | 2662-4435 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Earth & Environment |
| spelling | doaj-art-65197958e9f2404a8eece3d36db739942025-01-26T12:54:01ZengNature PortfolioCommunications Earth & Environment2662-44352025-01-016112010.1038/s43247-025-02012-xMulti-platform observations and constraints reveal overlooked urban sources of black carbon in Xuzhou and DhakaPravash Tiwari0Jason Blake Cohen1Lingxiao Lu2Shuo Wang3Xiaolu Li4Luoyao Guan5Zhewen Liu6Zhengqiang Li7Kai Qin8School of Environment and Spatial Informatics, China University of Mining and TechnologySchool of Environment and Spatial Informatics, China University of Mining and TechnologySchool of Environment and Spatial Informatics, China University of Mining and TechnologySchool of Environment and Spatial Informatics, China University of Mining and TechnologySchool of Geographic Sciences, Taiyuan Normal UniversitySchool of Environment and Spatial Informatics, China University of Mining and TechnologySchool of Environment and Spatial Informatics, China University of Mining and TechnologyState Environmental Protection Key Laboratory of Satellite Remote Sensing & Key Laboratory of Remote Sensing and Digital Earth, Aerospace Information Research Institute, Chinese Academy of SciencesSchool of Environment and Spatial Informatics, China University of Mining and TechnologyAbstract Here we use multi-waveband single scattering albedo observations from ground-based instruments and satellite to constrain black carbon aerosol's physical properties and loading over Xuzhou, China, and Dhaka, Bangladesh. Our daily high-resolution findings reveal smaller black carbon cores and spatially variable morphology dominate both regions. Column loadings reveal higher black carbon mass in Dhaka, while higher total aerosol mass and number are observed in Xuzhou. These findings reflect differences in emission sources, atmospheric conditions, and regulatory policies. Spatial analysis reveals notable enhanced black carbon along Dhaka’s urban riverbanks (8–9 mg m−2), and over rapidly changing, small industrial sites in China, indicating overlooked sources. Complex daily interactions between wind, accumulation, and dispersion challenge traditional seasonal dynamics. These findings demonstrate high-resolution data can be tailored from available remote sensing platforms, providing nuanced insights into regional air quality, enhancing assessment capabilities and informing targeted mitigation strategies.https://doi.org/10.1038/s43247-025-02012-x |
| spellingShingle | Pravash Tiwari Jason Blake Cohen Lingxiao Lu Shuo Wang Xiaolu Li Luoyao Guan Zhewen Liu Zhengqiang Li Kai Qin Multi-platform observations and constraints reveal overlooked urban sources of black carbon in Xuzhou and Dhaka Communications Earth & Environment |
| title | Multi-platform observations and constraints reveal overlooked urban sources of black carbon in Xuzhou and Dhaka |
| title_full | Multi-platform observations and constraints reveal overlooked urban sources of black carbon in Xuzhou and Dhaka |
| title_fullStr | Multi-platform observations and constraints reveal overlooked urban sources of black carbon in Xuzhou and Dhaka |
| title_full_unstemmed | Multi-platform observations and constraints reveal overlooked urban sources of black carbon in Xuzhou and Dhaka |
| title_short | Multi-platform observations and constraints reveal overlooked urban sources of black carbon in Xuzhou and Dhaka |
| title_sort | multi platform observations and constraints reveal overlooked urban sources of black carbon in xuzhou and dhaka |
| url | https://doi.org/10.1038/s43247-025-02012-x |
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