The Community Multiscale Air Quality (CMAQ) model is a state-of-the-science air quality model that simulates the emission, transformation, transport, and fate of the many different air pollutant species that comprise particulate matter (PM), including dust (or soil). The CMAQ model version 5.0 (CMAQv5.0) has several enhancements over the previous version of the model for estimating the emission...

The increased interest to carry out air quality impact assessment by using sophisticated and state-of-the art air quality modeling systems has conducted us to simulate the air quality impact of a projected incinerator in the Basque Country (North of Spain) area (San Sebastian) as requested by the promoter. In this contribution we show the implementation of a modified version of MM5-CMAQ [3] for...

Abstract. The Integrated Source Apportionment Method (ISAM) has been revised in the Community Multiscale Air Quality (CMAQ) model. This work updates ISAM to maximize its flexibility, particularly for ozone (O3) modeling, by providing multiple attribution options, including products inheriting fully from nitrogen oxide reactants, volatile organic compound (VOC) equally all or dynamically NOx VOC...

Abstract The southern Lake Michigan region of the United States, home to Chicago, Milwaukee, and other densely populated Midwestern cities, frequently experiences high pollutant episodes with unevenly distributed exposure health burdens. Using two‐way coupled Weather Research Forecast Community Multiscale Air Quality Model (WRF‐CMAQ), we investigate criteria pollutants over a domain using 1.3 4...

The Community Multiscale Air Quality (CMAQ) measurement was employed for evaluating the effectiveness of fine particulate matter control strategies in Taiwan. There are three scenarios as follows: (I) 2014 baseline year emission, (II) 2020 emissions reduced via Clean Act (CAA), and (III) other stringently Act. Based on Taiwan Emission Data System (TEDs) 8.1, established 2014, emission 2.5 (PM2....

Nitrogen dioxide vertical column density (NO2 VCD) measurements via satellite are compared with a finescale regional chemistry transport model, using a new approach that considers varying satellite footprint sizes. Spaceborne NO2 VCD measurement has been used as a proxy for surface nitrogen oxide (NOx) emission, especially for anthropogenic urban emission, so accurate comparison of satellite an...

Introduction Conclusions References

Direct Aerosol Radiative Forcing (DARF) characterizes aerosol influences on the radiative energy budget due to scattering and absorption of solar radiation, while clear uncertainties remain in both global regional DARF estimations differences properties time periods considered. Through a multidataset strategy, this study systematically investigates DARFs over Beijing, China, between 2001 2020. ...