A decrease in emissions of ozone precursor gases during the COVID-19 economic downturn likely explains the unusual reduction in ozone concentrations observed during the spring and summer of 2020.
A team of researchers in Brazil and the United States uncovered the importance of the mechanism of oxidation—a process with the potential to affect climate and precipitation across the tropics.
In a happy accident, scientists found a potential solution to an atmospheric chemistry mystery. Their findings could be a missing piece in the iodine cycle and in atmospheric models.
Air pollution levels below “safe” limits (and lower than those commonly found in cities) led to a significant decrease in pollination by 10 common insects.
Although causality has yet to be established, an Italian case study found that an increase in annual average exposure to PM2.5 was associated with a jump in the rate of COVID-19.
As people stayed home during the COVID-19 lockdowns, air quality improved. But the improvement was accompanied by an unusual meteorological side effect: a decrease in lightning.
Models suggest that thousands of Australians experienced dangerous levels of air pollution for several months, leading to more than a hundred deaths.
The insecticide sulfuryl fluoride isn’t included in federal or state emissions reduction goals.
New research outlines how pine needles offer a simple, low-cost means of assessing particulate matter pollution.
For the first time, scientists have linked high-density animal operations in the U.S. Midwest to rising air pollution from ammonia, suggesting need for increased regulation from the EPA.