Aerosol in global oceanic regions: Four-decade trends, spatial patterns, and policy implications.
High aerosol loadings are observed not only in megacities on continents but also in oceanic regions like the Bohai Sea. This work provides a comprehensive analysis of the spatial and temporal variations in Aerosol Optical Depth (AOD) across different ocean regions worldwide over the past four decade...
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ftpubmed:38925390 2024-09-15T18:11:05+00:00 Aerosol in global oceanic regions: Four-decade trends, spatial patterns, and policy implications. Li, Linxuan Wang, Xuehan Bi, Xiaohui Dai, Qili Liu, Baoshuang Wu, Jianhui Zhang, Yufen Feng, Yinchang 2024 Oct 15 https://doi.org/10.1016/j.scitotenv.2024.174176 https://pubmed.ncbi.nlm.nih.gov/38925390 eng eng Elsevier Science https://doi.org/10.1016/j.scitotenv.2024.174176 https://pubmed.ncbi.nlm.nih.gov/38925390 Copyright © 2024. Published by Elsevier B.V. Sci Total Environ ISSN:1879-1026 Volume:947 Aerosol optical depth Inland seas Natural and anthropogenic effect Spatial patterns Trends analyses Journal Article 2024 ftpubmed https://doi.org/10.1016/j.scitotenv.2024.174176 2024-07-31T16:03:00Z High aerosol loadings are observed not only in megacities on continents but also in oceanic regions like the Bohai Sea. This work provides a comprehensive analysis of the spatial and temporal variations in Aerosol Optical Depth (AOD) across different ocean regions worldwide over the past four decades, using remote sensing reanalysis data. The mean AOD value across all oceanic grids is approximately 0.112, with higher levels recorded in the Central Atlantic (~0.206), followed by the North Indian Ocean (~0.201), and the Western North Pacific (~0.197). A latitudinal analysis reveals that high AOD values are predominantly found in the Northern Hemisphere's oceanic regions, especially between latitudes 0° and 70° N. Except for the Gulf of California and Hudson Bay, AOD values in the other fourteen surveyed inland seas surpass the mean levels found at similar latitudes in oceanic regions. Among which, the Bohai Sea stands out as the most polluted oceanic region with AOD value of 0.35. Over the last four decades, AOD trends have revealed a significant decrease across about 89.5 % of global oceanic grids, while an increase in AOD is observed in low-latitude oceanic areas (30° S-30° N). Investigation into inland seas shows that nearly two-thirds have experienced a declining AOD trend, while sharply upward trends in AOD are primarily found in Asia. The Bohai Sea shows the largest increase in AOD, with an annual growth rate of 1.4 %. The turning-points of the AOD in each inland sea confirm the success of regional emission control policies initiated on the adjacent continents. To improve air quality in inland seas like the Bohai Sea, adjusting industrial layouts, such as relocating heavy industries from the surrounding coastal cities' proximities to areas near open seas, could significantly benefit public health. Article in Journal/Newspaper Hudson Bay PubMed Central (PMC) Science of The Total Environment 947 174176 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Aerosol optical depth Inland seas Natural and anthropogenic effect Spatial patterns Trends analyses |
spellingShingle |
Aerosol optical depth Inland seas Natural and anthropogenic effect Spatial patterns Trends analyses Li, Linxuan Wang, Xuehan Bi, Xiaohui Dai, Qili Liu, Baoshuang Wu, Jianhui Zhang, Yufen Feng, Yinchang Aerosol in global oceanic regions: Four-decade trends, spatial patterns, and policy implications. |
topic_facet |
Aerosol optical depth Inland seas Natural and anthropogenic effect Spatial patterns Trends analyses |
description |
High aerosol loadings are observed not only in megacities on continents but also in oceanic regions like the Bohai Sea. This work provides a comprehensive analysis of the spatial and temporal variations in Aerosol Optical Depth (AOD) across different ocean regions worldwide over the past four decades, using remote sensing reanalysis data. The mean AOD value across all oceanic grids is approximately 0.112, with higher levels recorded in the Central Atlantic (~0.206), followed by the North Indian Ocean (~0.201), and the Western North Pacific (~0.197). A latitudinal analysis reveals that high AOD values are predominantly found in the Northern Hemisphere's oceanic regions, especially between latitudes 0° and 70° N. Except for the Gulf of California and Hudson Bay, AOD values in the other fourteen surveyed inland seas surpass the mean levels found at similar latitudes in oceanic regions. Among which, the Bohai Sea stands out as the most polluted oceanic region with AOD value of 0.35. Over the last four decades, AOD trends have revealed a significant decrease across about 89.5 % of global oceanic grids, while an increase in AOD is observed in low-latitude oceanic areas (30° S-30° N). Investigation into inland seas shows that nearly two-thirds have experienced a declining AOD trend, while sharply upward trends in AOD are primarily found in Asia. The Bohai Sea shows the largest increase in AOD, with an annual growth rate of 1.4 %. The turning-points of the AOD in each inland sea confirm the success of regional emission control policies initiated on the adjacent continents. To improve air quality in inland seas like the Bohai Sea, adjusting industrial layouts, such as relocating heavy industries from the surrounding coastal cities' proximities to areas near open seas, could significantly benefit public health. |
format |
Article in Journal/Newspaper |
author |
Li, Linxuan Wang, Xuehan Bi, Xiaohui Dai, Qili Liu, Baoshuang Wu, Jianhui Zhang, Yufen Feng, Yinchang |
author_facet |
Li, Linxuan Wang, Xuehan Bi, Xiaohui Dai, Qili Liu, Baoshuang Wu, Jianhui Zhang, Yufen Feng, Yinchang |
author_sort |
Li, Linxuan |
title |
Aerosol in global oceanic regions: Four-decade trends, spatial patterns, and policy implications. |
title_short |
Aerosol in global oceanic regions: Four-decade trends, spatial patterns, and policy implications. |
title_full |
Aerosol in global oceanic regions: Four-decade trends, spatial patterns, and policy implications. |
title_fullStr |
Aerosol in global oceanic regions: Four-decade trends, spatial patterns, and policy implications. |
title_full_unstemmed |
Aerosol in global oceanic regions: Four-decade trends, spatial patterns, and policy implications. |
title_sort |
aerosol in global oceanic regions: four-decade trends, spatial patterns, and policy implications. |
publisher |
Elsevier Science |
publishDate |
2024 |
url |
https://doi.org/10.1016/j.scitotenv.2024.174176 https://pubmed.ncbi.nlm.nih.gov/38925390 |
genre |
Hudson Bay |
genre_facet |
Hudson Bay |
op_source |
Sci Total Environ ISSN:1879-1026 Volume:947 |
op_relation |
https://doi.org/10.1016/j.scitotenv.2024.174176 https://pubmed.ncbi.nlm.nih.gov/38925390 |
op_rights |
Copyright © 2024. Published by Elsevier B.V. |
op_doi |
https://doi.org/10.1016/j.scitotenv.2024.174176 |
container_title |
Science of The Total Environment |
container_volume |
947 |
container_start_page |
174176 |
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1810448687550169088 |