Please note:
Some data are not yet validated and may change.
The Data Validation Table identifies validated data sets.
Data are reported in Atlantic Standard Time (AST).

Air quality monitoring of gaseous pollutants in downtown Halifax changed from the Vogue Building, located at 1645 Barrington St., 4th floor (Halifax Downtown), to the Johnston Building, located at 1672 Granville St., 8th floor (Halifax Johnston Gases) as of Jan 1, 2018.