Add Yahoo as a preferred source to see more of our stories on Google. Ultrafine particles stem from a variety of natural and human-made sources, including vehicle exhaust. Joe Raedle/Getty Images Long ...

A new study has linked air pollution exposure and immune-system changes that often precede the onset of autoimmune diseases. McGill University researchers analyzing Ontario data found that fine ...

A pioneering method to simulate how microscopic particles move through the air could boost efforts to combat air pollution, a study suggests. A pioneering method to simulate how microscopic particles ...

Metals, particularly nickel and vanadium, and sulfate particles are the components of fine particulate air pollution (PM2.5) that most strongly contribute to the association between long-term exposure ...

The San Joaquin Valley has finally achieved a 1997 federal standard for removing fine particulates from local air, according to a new report that also highlights the need for further progress. For the ...

The Delhi government began field trials of multiple air-cleaning systems across the capital. The tests are meant to identify ...

Particle pollution can pose serious health risks, triggering asthma attacks and worsening heart and lung disease symptoms.

VISAKHAPATNAM: Air pollution levels across Andhra Pradesh have worsened consistently over the past three years, with ...

Long-term high ultrafine particle concentrations in New York state neighborhoods are linked to higher numbers of deaths. That is the key finding of our new research, published in the Journal of ...