Environmental Studies and Forestry

Equatorward shift of the boreal summer intertropical convergence zone in Maritime Continent and the impacts on surface black carbon concentration and public health

T. Huang, Y. Gu, et al.

This study reveals a significant equatorward shift of the boreal summer ITCZ in the Maritime Continent, which affects black carbon concentration and public health. Conducted by Tao Huang, Yefu Gu, David Lallemant, Gabriel N. C. Lau, Joseph J. Y. Sung, and Steve H. L. Yim, it highlights the contrasting impacts on maritime and continental regions, emphasizing the need for climate-aware air pollution strategies.

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Abstract

This study investigates the long-term shift of the boreal summer intertropical convergence zone (ITCZ) in the Maritime Continent from 1980 to 2014 and its impact on black carbon (BC) concentration and public health. Results show an equatorward ITCZ shift (~2.1°) due to equatorial warming, reducing BC in maritime areas but increasing it in continental areas. This shift decreased BC-associated premature mortality in maritime countries (~13%) but increased it in continental countries (~6%). The study highlights the need to consider climate change impacts in air pollution mitigation strategies.

Publisher

npj Climate and Atmospheric Science

Published On

Feb 29, 2024

Authors

Tao Huang, Yefu Gu, David Lallemant, Gabriel N. C. Lau, Joseph J. Y. Sung, Steve H. L. Yim

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