While emissions that affect air quality are released mostly during the day, there is still chemistry at night that determines how long certain pollutants stick around. This is particularly true for  the chemistry of nitrogen oxides.  NOX (NO and NO2) is emitted from a variety of sources, both natural and human caused. In the winter,… Read More

People in Salt Lake City are very aware of air quality issues that occur during inversion events. As a result, there is great local interest in the work that we’re doing here. To keep people informed, we held a media day on Wednesday, February 1. Interest was particularly high because we were in the midst… Read More

With so many instruments and some overlapping measurements in the airplane, it’s important that we know exactly what and how much  we’re measuring to make sure we provide the most accurate results and that all the instruments agree with each other. In order to accomplish this,we have come to Salt Lake City well equipped with… Read More

In winter, Salt Lake City suffers from inversion events, which trap air pollutants low to the ground and cause buildup of particulate matter in the air. Particulate matter, known to atmospheric chemists as aerosols, has been shown to have strong influence on human health; for example, areas with higher particulate concentrations have higher mortality rates.… Read More