The Ministry of Environment and Interior Health have ended the fine particulate and ozone advisory for Williams Lake.
A press release from the two organizations says air quality has improved due to a change in the weather.
Pollutant concentrations and the associated health risk are now lower.
The advisory was originally issued Monday and was ended Wednesday morning.
Meteorological conditions, emissions from various sources including industry, transportation sources, and long-range pollutant transport were likely contributing to the poor air quality earlier this week, according to an earlier news release.
Real-time air quality information from Williams Lake and other B.C. communities can be found at: www.bcairquality.ca.