Atmospheric chemistry and aerosols

Study reveals tropical isoprene varies by region: Amazonia emission-controlled, Maritime Continent chemistry-controlled, and equatorial Africa intermediate, requiring region-specific atmospheric.

FuXi-Air combines meteorological, emission, and observational data for high-precision air quality forecasting at scale, generating 72-hour predictions across multiple sites in seconds.

Study reveals severe spatial disparities in Chicago's air quality monitoring, with affluent areas over-monitored and minority communities facing undetected PM2.5 pollution hotspots.

Iron dissolution in urban aerosols follows divergent pathways controlled by sulfuric and nitric acids, shifting from nitric acid dominance at ground-level to sulfuric acid in the upper atmosphere.

Analysis of wildfire-PM2.5 health impacts in Canada 2019-2023 quantifies premature mortality, respiratory outcomes, and economic costs ranging from billions annually.

EMAC earth system model accurately simulates global atmospheric hydrogen dynamics, achieving correlation coefficients exceeding 0.9 at remote polar stations against observational data.

Atmospheric methane growth peaked in 2020 driven by declining hydroxyl radicals and increased tropical wetland emissions in Africa and Asia, before declining through 2023.

Study models how expanded rocket launches could impact stratospheric ozone recovery, finding that 10-52 fold increases in chlorine emissions would cause modest but measurable ozone depletion.

21-year satellite inventory shows global atmospheric chlorine declining since 2004, though emerging short-lived substances offset some gains from CFC phase-out regulations.

Study examines how aerosol and greenhouse gas reductions under carbon neutrality create regionally divergent wildfire impacts in China, with competing mechanisms driving risk changes.

Analysis of warm-season ozone and secondary aerosol formation in the Guanzhong Basin reveals sub-seasonal regime shifts, with traffic and industrial emissions driving both pollutants.

Evaluation of UKESM1.1 against ATom aircraft data reveals missing marine aerosol formation pathways involving iodine, amines, and organic vapours in remote regions.

Controlled chamber study of PFAS aerosol formation reveals size-dependent inhalation deposition patterns. Most PFAS show fine-mode aerosols with peaks at 0.3 micrometers, while bacterial seed.

Entropy-based analysis of aerosol mixing state and CCN activity reveals distinct seasonal and geographic patterns, with heightened sensitivity in externally-mixed regimes at inland and coastal sites.

Phase-dependent V2O5/TiO2 catalysts achieve >90% simultaneous NOx and VOC removal using tandem reactor configuration with anatase and rutile phases optimized for distinct pollutant substrates.

Study analyzing meteorological drivers of summer ground-level ozone in Jilin City (2020-2023) using WRF-CMAQ modeling and health risk assessment to identify atmospheric conditions affecting ozone.

Study reveals cross-regional ozone transport contributes 65% of surface pollution in Fenwei Plain, with Hubei and Henan as dominant sources. Multi-source observations show transport drives.

Analyze seasonal aerosol variations at coastal boundaries using global AERONET data. Machine learning identifies four distinct aerosol regimes with pronounced seasonal patterns and spectral.

PM2.5 chemical analysis and multi-pollutant health risks in Central Taiwan 2020-2022. AQHI assessment shows improved sensitivity over conventional AQI for predicting respiratory and cardiovascular.

Systematic microphysical simulations reveal ice crystal formation mechanisms in hydrogen-combustion contrails, establishing foundation for climate impact parameterization.