Articles | Volume 15, issue 16
Atmos. Chem. Phys., 15, 9345–9360, 2015
https://doi.org/10.5194/acp-15-9345-2015
Atmos. Chem. Phys., 15, 9345–9360, 2015
https://doi.org/10.5194/acp-15-9345-2015

Research article 21 Aug 2015

Research article | 21 Aug 2015

Regional-scale transport of air pollutants: impacts of Southern California emissions on Phoenix ground-level ozone concentrations

J. Li et al.

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Subject: Gases | Research Activity: Atmospheric Modelling | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
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Emission sensitivity studies, using WRF-Chem at 1.3km that was validated by observations, indicate the Arizona (AZ) emissions dominate on daily maximum 8-hr average (DMA8) [O3] in Phoenix (PHX). Southern California (SoCal) emission contribute to DMA8 [O3] for the PHX from a few ppb to over 30 ppb. [O3] from SoCal and AZ emissions exhibits diurnal characteristics. Pollutants near the SoCal coasts are transported to PHX by local circulations with different mechanisms.
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