Can monitoring indoor carbon dioxide levels predict how COVID-safe a room is?
The gas can be a proxy for stagnant air — but the answer is complicated
Air quality monitors mounted on public transit see pollution other sensors miss
Researchers in Salt Lake City are using light rail trains to measure the city's air pollution
Aerosols from urban emissions can, literally, make it rain
Atmospheric model of a Houston storm shows emissions increase rainfall intensity and occurrence
The US saw cleaner air during COVID-19 lockdowns, but some pollutants persisted
Nitrogen dioxide levels dropped due to a sharp decrease in passenger cars on the road