Impact of global climate change on ozone, particulate matter, and secondary organic aerosol concentrations in California: A model perturbation analysis
Aerosols
; Air pollution
; Air quality
; Climate models
; Location
; Ozone
; Air quality modeling
; Air quality simulation
; Global climate changes
; Particulate Matter
; Perturbation parameters
; Secondary organic aerosols
; South Coast Air Basin of California
; South Coast Air basins
; Climate change
; ammonia
; ammonium nitrate
; ozone
; polycyclic aromatic hydrocarbon
; aerosol
; air quality
; atmospheric modeling
; atmospheric pollution
; climate change
; climate effect
; concentration (composition)
; emission inventory
; global climate
; ozone
; particulate matter
; perturbation
; temperature effect
; volatile organic compound
; air pollution
; air quality
; air temperature
; Article
; California
; climate change
; exhaust gas
; global climate
; high temperature
; humidity
; low temperature
; meteorology
; particulate matter
; priority journal
; secondary organic aerosol
; water vapor
; California
; South Coast Air Basin
; United States
Scopus学科分类:
Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要:
Air quality simulations are performed to determine the impact of changes in future climate and emissions on regional air quality in the South Coast Air Basin (SoCAB) of California. The perturbation parameters considered in this study include (1) temperature, (2) absolute humidity, (3) biogenic VOC emissions due to temperature changes, and (4) boundary conditions. All parameters are first perturbed individually. In addition, the impact of simultaneously perturbing more than one parameter is analyzed. Air quality is simulated with meteorology representative of a summertime ozone pollution episode using both a baseline 2005 emissions inventory and a future emissions projection for the year 2023. Different locations within the modeling domain exhibit varying degrees of sensitivity to the perturbations considered. Afternoon domain wide average ozone concentrations are projected to increase by 13–18% as a result of changes in future climate and emissions. Afternoon increases at individual locations range from 10 to 36%. The change in afternoon particulate matter (PM) levels is a strong function of location in the basin, ranging from�−7.1% to�+4.7% when using 2005 emissions and�−8.6% to�+1.7% when using 2023 emissions. Afternoon secondary organic aerosol (SOA) concentrations for the entire domain are projected to decrease by over 15%, and the change in SOA levels is not a strong function of the emissions inventory utilized. Temperature increases play the dominant role in determining the overall impact on ozone, PM, and SOA concentrations in both the individual and combined perturbation scenarios. � 2016 Elsevier Ltd
Computational Environmental Sciences Laboratory, Department of Mechanical & Aerospace Engineering, University of California, Irvine, CA, United States
Recommended Citation:
Horne J,R,, Dabdub D. Impact of global climate change on ozone, particulate matter, and secondary organic aerosol concentrations in California: A model perturbation analysis[J]. Atmospheric Environment,2017-01-01,153