Canadian atmospheric mercury measurements collected using Tekran 2537 analyzers. The data is quality controlled using the Environment Canada RDMQ system and supports the Canadian National Atmospheric Chemistry Database and Analysis System (NAtChem). The dataset was last updated on 2026-05-14.
Use Cases
- Analyze temporal trends of atmospheric mercury pollution based on continuous 5-30 minute interval measurements.
- Model mercury transport and deposition based on geographically distributed monitoring data.
- Validate atmospheric chemistry models based on quality-controlled mercury concentration data.
- Assess the effectiveness of environmental policies on mercury emissions based on long-term monitoring records.
Strengths
- Data is quality controlled using the Environment Canada RDMQ (Research Data Management and Quality Control) system.
- Instruments are calibrated daily using an internal mercury source and verified during routine site audits.
- Continuous measurement of mercury in the air stream at 5-30 minute intervals.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Geographic scope of monitoring locations is not specified in the provided description.
Provenance
- Source
- Environment and Climate Change Canada
- Collection Method
- Measurements made using automatic Tekran 2537 mercury vapour analyzers with pre-concentration on gold cartridges and detection via Cold Vapour Atomic Fluorescence Spectrophotometry (CVAFS).
- Freshness
- Last updated 2026-05-14 14:21:56.857521