The Trump-era regulation, which allowed certain studies to be downplayed in the development of environmental regulations, drew sharp criticism from scientists and environmental groups.

Jos Lelieveld of the Max Planck Institute for Chemistry explains how fine particulate might contribute to deaths from COVID-19.

In the Netherlands, researchers identify a correlation between pollution and COVID-19 cases, hospital admissions, and deaths.

A novel sampler records data on a broad range of environmental contaminants.

Researchers set out to make an air pollution detector study subjects would want to wear.

Studies on various roadside layouts and species tend to yield different results for plants’ effectiveness at alleviating pollution.

Most of the panel’s members were appointed by the Trump administration.

Inhaling combustion-produced particles may lead to the development of brain tumors.

Evidence is accumulating that breathing contaminated air might impair cognition.

Contaminants in the atmosphere appear to have harmful effects on neurodevelopment and cognitive function.

A number of epidemiological studies support a link between air quality and poor health outcomes, and researchers are searching for explanations in the lab.

Firefighters who didn’t develop obstructive airway disease after the World Trade Center attacks had higher levels of omega-3 fatty acids and other factors that hint at possible protective effects of diet.

Most of the genetic alterations are harmless, but some may contribute to cancer.

Silver birch, elder, and yew win out in an experiment to see which species best capture the tiny particles from diesel pollution.

A study compares verbal and math test scores to air quality measurements in China and finds a correlation.

The sources of pollution are not known yet because of incomplete data collection.

Opponents of the guidelines, which would bar results of many public health studies from use in policy making, include scientific and healthcare organizations.

A new report estimates that 95 percent of people live in areas with dangerously high levels of fine particulate matter such as dust and soot.

Mineral nanoparticles similar to those that have been associated with Alzheimer’s disease may enter the brain through the inhalation of polluted air.