Parametric analysis for global single scattering albedo calculations

Jeong, Jae-In; Jo, Duseong S.; Park, Rokjin J.; Lee, Hyung‐Min; Curci, Gabriele; Kim, Sang Woo

doi:10.1016/j.atmosenv.2020.117616

Cited by 6 publications

(1 citation statement)

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“…Secondary inorganic aerosols are also included as a reference for comparison with OA. Secondary inorganic aerosols in both models have been extensively evaluated against surface and aircraft observations. ,,− In this study, premature deaths due to PM 2.5 are calculated to be 3.66 million using the IER method and 8.41 million using the GEMM method. These values align with previous studies which estimated 3.22–4.00 million for the IER method ,,, and 7.78–8.92 million for the GEMM method. ,, …”

Section: Resultsmentioning

confidence: 99%

Global Health and Climate Effects of Organic Aerosols from Different Sources

Jo,

Nault,

Tilmes

et al. 2023

Environ. Sci. Technol.

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The impact of aerosols on human health and climate is well-recognized, yet many studies have only focused on total PM2.5 or changes from anthropogenic activities. This study quantifies the health and climate effects of organic aerosols (OA) from anthropogenic, biomass burning, and biogenic sources. Using two atmospheric chemistry models, CAM-chem and GEOS-Chem, our findings reveal that anthropogenic primary OA (POA) has the highest efficiency for health effects but the lowest for direct radiative effects due to spatial and temporal variations associated with population and surface albedo. The treatment of POA as nonvolatile or semivolatile also influences these efficiencies through different chemical processes. Biogenic OA shows moderate efficiency for health effects and the highest for direct radiative effects but has the lowest efficiency for indirect effects due to the reduced high cloud, caused by stabilized temperature profiles from aerosol–radiation interactions in biogenic OA-rich regions. Biomass burning OA is important for cloud radiative effect changes in remote atmospheres due to its ability to be transported further than other OAs. This study highlights the importance of not only OA characteristics such as toxicity and refractive index but also atmospheric processes such as transport and chemistry in determining health and climate impact efficiencies.

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