Nova Scotia Provincial Ambient Nitrogen Oxides (NOx, NO2, NO) Hourly Data Halifax Johnston (CSV Excel) (English)

Nova Scotia Provincial Ambient Nitrogen Oxides (NOx, NO2, NO) Hourly Data Halifax Johnston (CSV Excel): English CSV file you can open as a table, filter, chart and export up to 10,000 rows. From Government of Nova Scotia, updated Aug 2026.

Format

CSV

Access

Table on demand (prepared when opened)

Publisher-reported update

2026-08-26

Hourly ambient nitrogen oxides (NOx, NO2, NO) data in parts per billion from provincial ambient air quality monitoring stations across Nova Scotia up to the end of 2025. This air quality station was established to replace the "Halifax Vogue" air quality monitoring station which ceased monitoring at the end of 2017. The Halifax Vogue station was less than 1 block away from the new "Halifax Johnston" station.

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