PMID- 30296386
OWN - NLM
STAT- MEDLINE
DCOM- 20200221
LR  - 20200221
IS  - 2162-2906 (Electronic)
IS  - 1096-2247 (Linking)
VI  - 69
IP  - 2
DP  - 2019 Feb
TI  - Projected changes in particulate matter concentrations in the South Coast Air 
      Basin due to basin-wide reductions in nitrogen oxides, volatile organic 
      compounds, and ammonia emissions.
PG  - 192-208
LID - 10.1080/10962247.2018.1531795 [doi]
AB  - An ozone abatement strategy for the South Coast Air Basin (SoCAB) has been 
      proposed by the South Coast Air Quality Management District (SCAQMD) and the 
      California Air Resources Board (ARB). The proposed emissions reduction strategy 
      is focused on the reduction of nitrogen oxide (NO(x)) emissions by the year 2030. 
      Two high PM(2.5) concentration episodes with high ammonium nitrate compositions 
      occurring during September and November 2008 were simulated with the Community 
      Multi-scale Air Quality model (CMAQ). All simulations were made with same 
      meteorological files provided by the SCAQMD to allow them to be more directly 
      compared with their previous modeling studies. Although there was an overall 
      under-prediction bias, the CMAQ simulations were within an overall normalized 
      mean error of 50%; a range that is considered acceptable performance for PM 
      modeling. A range of simulations of these episodes were made to evaluate 
      sensitivity to NO(x) and ammonia emissions inputs for the future year 2030. It 
      was found that the current ozone control strategy will reduce daily average 
      PM(2.5) concentrations. However, the targeted NO(x) reductions for ozone were not 
      found to be optimal for reducing PM(2.5) concentrations. Ammonia emission 
      reductions reduced PM(2.5) and this might be considered as part of a PM(2.5) 
      control strategy. Implications: The SCAQMD and the ARB have proposed an ozone 
      abatement strategy for the SoCAB that focuses on NO(x) emission reductions. Their 
      strategy will affect both ozone and PM(2.5). Two episodes that occurred during 
      September and November 2008 with high PM(2.5) concentrations and high ammonium 
      nitrate composition were selected for simulation with different levels of 
      nitrogen oxide and ammonia emissions for the future year 2030. It was found that 
      the ozone control strategy will reduce maximum daily average PM(2.5) 
      concentrations but its effect on PM(2.5) concentrations is not optimal.
FAU - Stewart, Devoun R
AU  - Stewart DR
AD  - a Department of Chemistry , Sacramento City College , Sacramento , CA , USA.
FAU - Saunders, Emily
AU  - Saunders E
AD  - b Global Modeling and Assimilation Office , NASA Goddard Space Flight Center , 
      Greenbelt , MD , USA.
FAU - Perea, Roberto
AU  - Perea R
AD  - c Department of Information Technology , University of Texas El Paso , El Paso , 
      TX , USA.
FAU - Fitzgerald, Rosa
AU  - Fitzgerald R
AD  - d Department of Physics , University of Texas El Paso , El Paso , TX , USA.
FAU - Campbell, David E
AU  - Campbell DE
AD  - e Division of Atmospheric Sciences , Desert Research Institute, Nevada System of 
      Higher Education , Reno , NV , USA.
FAU - Stockwell, William R
AU  - Stockwell WR
AD  - d Department of Physics , University of Texas El Paso , El Paso , TX , USA.
AD  - e Division of Atmospheric Sciences , Desert Research Institute, Nevada System of 
      Higher Education , Reno , NV , USA.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Research Support, U.S. Gov't, Non-P.H.S.
DEP - 20181206
PL  - United States
TA  - J Air Waste Manag Assoc
JT  - Journal of the Air & Waste Management Association (1995)
JID - 9503111
RN  - 0 (Air Pollutants)
RN  - 0 (Nitrogen Oxides)
RN  - 0 (Particulate Matter)
RN  - 0 (Volatile Organic Compounds)
RN  - 66H7ZZK23N (Ozone)
RN  - 7664-41-7 (Ammonia)
SB  - IM
MH  - Air Pollutants/analysis
MH  - *Air Pollution/adverse effects/analysis/prevention & control
MH  - Ammonia/*analysis
MH  - California/epidemiology
MH  - *Environmental Monitoring/methods/standards
MH  - Environmental Restoration and Remediation/methods
MH  - Forecasting/methods
MH  - Humans
MH  - Models, Theoretical
MH  - Nitrogen Oxides/*analysis
MH  - Ozone/analysis
MH  - Particulate Matter/analysis
MH  - Volatile Organic Compounds/*analysis
EDAT- 2018/10/09 06:00
MHDA- 2020/02/23 06:00
CRDT- 2018/10/09 06:00
PHST- 2018/10/09 06:00 [pubmed]
PHST- 2020/02/23 06:00 [medline]
PHST- 2018/10/09 06:00 [entrez]
AID - 10.1080/10962247.2018.1531795 [doi]
PST - ppublish
SO  - J Air Waste Manag Assoc. 2019 Feb;69(2):192-208. doi: 
      10.1080/10962247.2018.1531795. Epub 2018 Dec 6.