ArticleAtmospheric chemistry and physics2023
Linking gas, particulate, and toxic endpoints to air emissions in the Community Regional Atmospheric Chemistry Multiphase Mechanism (CRACMM).
Article in Atmospheric chemistry and physics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Global emission trends of anthropogenic full-volatility-range organic compounds 1970-2020.National science review · 2026Article
- Fate of isoprene peroxy radical constrains the urban photochemical regime.Science advances · 2026Article
- Application and evaluation of CRACMM v1.0 mechanism in PMGeoscientific model development · 2026Article
- Implications of printing ink composition for ambient air pollutants.ACS ES&T air · 2025Article
- A graph theory-based algorithm for the reduction of atmospheric chemical mechanisms.PNAS nexus · 2025Article
- Improved Simulation of Particle Number Concentrations Over the US: Integrating a Size-Resolved Advanced Particle Microphysics Model Into CMAQ.Journal of geophysical research. Atmospheres : JGR · 2025Article
- Analyzing the Role of Chemical Mechanism Choice in Wintertime PMACS ES&T air · 2025Article
- GPU Implementation of a Gas-Phase Chemistry Solver in the CMAQ Chemical Transport Model.ACS ES&T air · 2025Article
- Role of chemical production and depositional losses on formaldehyde in the Community Regional Atmospheric Chemistry Multiphase Mechanism (CRACMM).Atmospheric chemistry and physics · 2024Article
- Can we achieve atmospheric chemical environments in the laboratory? An integrated model-measurement approach to chamber SOA studies.Science advances · 2024Article
- Widespread 2013-2020 decreases and reduction challenges of organic aerosol in China.Nature communications · 2024Article
- A better representation of VOC chemistry in WRF-Chem and its impact on ozone over Los Angeles.Atmospheric chemistry and physics · 2024Article
- Temperature-dependent composition of summertime PMACS earth & space chemistry · 2024Article
- Leveraging scientific community knowledge for air quality model chemistry parameterizations.EM (Pittsburgh, Pa.) · 2024Article
- Anthropogenic Secondary Organic Aerosol and Ozone Production from Asphalt-Related Emissions.Environmental science: atmospheres · 2023Article
- AMORE-Isoprene v1.0: a new reduced mechanism for gas-phase isoprene oxidation.Geoscientific model development · 2023Article
Corrections and comments
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Authors and funding
18 authors.
Funding
Abstract
Chemical mechanisms describe the atmospheric transformations of organic and inorganic species and connect air emissions to secondary species such as ozone, fine particles, and hazardous air pollutants (HAPs) like formaldehyde. Recent advances in our understanding of several chemical systems and shifts in the drivers of atmospheric chemistry warrant updates to mechanisms used in chemical transport models such as the Community Multiscale Air Quality (CMAQ) modeling system. This work builds on the Regional Atmospheric Chemistry Mechanism version 2 (RACM2) and develops the Community Regional Atmospheric Chemistry Multiphase Mechanism (CRACMM) version 1.0, which demonstrates a fully coupled representation of chemistry leading to ozone and secondary organic aerosol (SOA) with consideration of HAPs. CRACMMv1.0 includes 178 gas-phase species, 51 particulate species, and 508 reactions spanning gas-phase and heterogeneous pathways. To support estimation of health risks associated with HAPs, nine species in CRACMM cover 50 % of the total cancer and 60 % of the total non-cancer emission-weighted toxicity estimated for primary HAPs from anthropogenic and biomass burning sources in the US, with the coverage of toxicity higher (>80 %) when secondary formaldehyde and acrolein are considered. In addition, new mechanism species were added based on the importance of their emissions for the ozone, organic aerosol, or atmospheric burden of total reactive organic carbon (ROC): sesquiterpenes, furans, propylene glycol, alkane-like low- to intermediate-volatility organic compounds (9 species), low- to intermediate-volatility oxygenated species (16 species), intermediate-volatility aromatic hydrocarbons (2 species), and slowly reacting organic carbon. Intermediate- and lower-volatility organic compounds were estimated to increase the coverage of anthropogenic and biomass burning ROC emissions by 40 % compared to current operational mechanisms. Autoxidation, a gas-phase reaction particularly effective in producing SOA, was added for C
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.