Aerosols and Their Radiative and Air Quality Impacts: Bridging Science and Policy

A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Aerosols".

Deadline for manuscript submissions: 31 December 2025 | Viewed by 252

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Guest Editor
Pacific Marine Environmental Laboratory, National Oceanic and Atmospheric Administration (NOAA), Seattle, WA 98115, USA
Interests: radiative effects of aerosols; effects of aerosol on air quality
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Special Issue Information

Dear Colleagues,

This Special Issue is soliciting papers showcasing recent results related to the science of and policy surrounding aerosol radiative forcing and air quality impacts. The overall objective is to highlight recent advances at the intersection of aerosol research and policy decisions. Potential topics include, but are not limited to, trends in aerosol and aerosol precursor emissions, long term monitoring of trends in aerosol concentrations using in situ and remote sensors, process studies on radiative forcing and air quality impacts of aerosol emissions, and modeling of aerosol direct radiative effects and aerosol–cloud interactions. Linkages between measurement and modeling results and how they have informed policy decisions are particularly suitable for this Special Issue. Policy decisions could range from those related to improving air quality or the feasibility of solar radiation management through marine cloud brightening. Scales of aerosol impacts can range from local to regional or to global.

Dr. Patricia K. Quinn
Guest Editor

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Keywords

  • aerosols
  • air quality
  • radiative forcing
  • air pollution
  • emissions
  • monitoring
  • climate models
  • chemical transport models

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Published Papers (1 paper)

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Research

23 pages, 3352 KB  
Article
Characterization of the Optical Properties of Biomass-Burning Aerosols in Two HighAndean Cities, Huancayo and La Paz, and Their Effect on Radiative Forcing
by Cesar Victoria-Barros and René Estevan Arredondo
Atmosphere 2025, 16(11), 1240; https://doi.org/10.3390/atmos16111240 - 28 Oct 2025
Abstract
Atmospheric aerosols are known to alter the Earth’s radiative balance and influence climate. However, accurately quantifying the magnitude of aerosol-induced radiative forcing remains challenging. We characterize optical properties of biomass-burning (BB) and non-biomass-burning (NB) aerosols and quantify BB aerosol radiative forcing at two [...] Read more.
Atmospheric aerosols are known to alter the Earth’s radiative balance and influence climate. However, accurately quantifying the magnitude of aerosol-induced radiative forcing remains challenging. We characterize optical properties of biomass-burning (BB) and non-biomass-burning (NB) aerosols and quantify BB aerosol radiative forcing at two AERONET (AErosol RObotic NETwork) sites in Huancayo (Peru) and La Paz (Bolivia) during 2015–2021. From AERONET data, we derive aerosol optical depth (AOD), Ångström exponent (AE), single-scattering albedo (SSA), and asymmetry parameter (ASY). We then employ the SBDART model to calculate aerosol radiative forcing (ARF) on monthly and multiannual timescales. BB aerosols peak in September (AOD: 0.230 at Huancayo; 0.235 at La Paz), while NB aerosols reach maxima in September at Huancayo (0.109) and November at La Paz (0.104). AE values exceeding unity for BB aerosols indicate fine-mode dominance. Huancayo exhibited the highest BB ARF in November: +16.4 W m−2 at the top of the atmosphere (TOA), –18.6 W m−2 at the surface (BOA), and +35.1 W m−2 within the atmospheric column (ATM). This was driven by elevated AOD and high scattering efficiency. At La Paz, where SSA data was only available for September, BBARF values were also significant (+15.16 at TOA, –17.52 at BOA, and +32.73 W m−2 within the ATM). This result underscores the importance of quantifying the ARF, particularly over South America where data is scarce. Full article
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