Mild weather kept particulates down

A study shows that mild weather had a lot more to do with reduced local air pollution than steps taken to cut emissions from various sources.

The Fairbanks North Star Borough's voluntary and educational programs to improve air quality accounted for less than 3% of a major and unexpected drop in the pollution.

The mild weather was responsible for about 75% of the reduction, according to an analysis by Sierra Research. The study concentrated on particulate pollution, known as PM 2.5.