Environment Canada has issued an air quality advisory for Prince George and the surrounding area due to high concentrations of coarse particulate matter, or dust.
The weather office says the dust is expected to persist until there is precipitation, suppression, or a change in traffic patterns.
It says dust levels tend to be highest around busy roads and industrial operations.
It says exposure is particularly concerning for people with chronic conditions, such as asthma, C-O-P-D, heart disease and diabetes, as well as pregnant women, children, and people with respiratory infections.