Here are the 11 cities (there was a tie for 10th place) with the highest levels of fine particulates, based on annual average.

The area ranks highest in annual and 24-hour peak averages in fine particulates.

There is also growing concern over the air pollution from wood heating versus oil or gas heat, especially the fine particulates.

His characters don't stroll on from stage left, they materialize in place, coalescing from clouds of fine particulates.

Also, fine particulates of soot blacken humans' and other animals' lungs and cause heart problems or death.

Respirable and fine particulates will also be monitored, but less stringently.

Pollutants emitted by burning coal include fine particulates (PM2.5) and ground level ozone.

With this compromise we are at last effectively tackling the problem of fine particulates.

The great majority of deaths are due to fine airborne particulates.

Sand applied to icy roads can be ground up by traffic into fine particulates and contribute to air pollution.