Confronting Uncertainties of Simulated Air Pollution Concentrations during Persistent Cold Air Pool Events in the Salt Lake Valley, Utah.

ABSTRACT: Air pollutant accumulations during wintertime persistent cold air pool (PCAP) events in mountain valleys are of great concern for public health worldwide. Uncertainties associated with the simulated meteorology under stable conditions over complex terrain hinder realistic simulations of air quality using chemical transport models. We use the Community Multiscale Air Quality (CMAQ) model to simulate the gaseous and particulate species for 1 month in January 2011 during the Persistent Cold Air Pool Study (PCAPS) in the Salt Lake Valley (SLV), Utah (USA). Results indicate that the temporal variability associated with the elevated NO_x and PM_2.5 concentrations during PCAP events was captured by the model (r = 0.20 for NO_x and r = 0.49 for PM_2.

SUBMITTER: Sun X 

PROVIDER: S-EPMC9585943 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature