Ambient VOC Concentrations Upwind and Downwind of Montreal, 2014-2026

Ambient volatile organic compound (VOC) concentration and uncertainty data from four monitoring stations in Quebec, Canada. The data was obtained from the National Air Pollution Surveillance Program (NAPS) and covers the period from January 1, 2014, to December 31, 2026. Sampling frequencies and integration times vary by site, and data processing includes handling of values below the method detection limit.

Use Cases

• Conducting source apportionment analysis based on VOC concentration patterns across multiple stations.
• Analyzing spatial variation of air pollutants upwind and downwind of a major city.
• Assessing measurement uncertainty in environmental monitoring data based on the described calculation methods.
• Studying long-term trends in ambient VOC levels over a 13-year period.

Strengths

• Covers a 13-year time range from 2014 to 2026, providing longitudinal data.
• Includes data from four distinct monitoring stations, enabling spatial analysis.
• Provides detailed uncertainty calculations for each measurement based on method detection limits.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

National Air Pollution Surveillance Program (NAPS)

Collection Method

Ambient monitoring via integrated samples at four stations in Quebec.

Time Range

2014-01-01 to 2026-12-31

Freshness

Last updated 2026-05-23 04:11:25; freshness should be verified.

Geography

Four stations in Quebec, Canada: Lemieux, l’Assomption, Saint Anicet, Parc Saint Jean Baptiste.