The Canadian National Atmospheric Chemistry (NAtChem) Database And Analysis System
The National Atmospheric Chemistry Database (NAtChem) is a data archival and analysis facility operated by the Science and Technology Branch of Environment Canada.
The purpose of the NAtChem database is to enhance atmospheric research through the archival and analysis of North American air and precipitation chemistry data. Such research includes investigations into the chemical nature of the atmosphere, atmospheric processes, spatial and temporal patterns, source-receptor relationships and long range transport of air pollutants.
The NAtChem Database contains air and precipitation chemistry data from many major regional-scale networks in North America as well as several major short-term special studies. With the exception of the special studies, to contribute to NAtChem networks must operate for a period of at least two years, must have wide area coverage, and must have regionally-representative sites (rural and background).
The NAtChem Database consists of several smaller databases:
- Particulate Matter and Related Trace Gases (NAtChem/PM)
Atmospheric particulate matter and related trace gas data and results
- Precipitation Chemistry (NAtChem/Precip)
Precipitation chemistry data and results
- Air Toxics (NAtChem/Toxics)
Atmospheric toxic substances data and results
- Special Studies (NAtChem/Special Studies)
Atmospheric data and results at special studies sites
- Greenhouse Gases (NAtChem/Greenhouse Gases)
Greenhouse Gases data and results
- Canadian Aerosol Baseline Measurements (NAtChem/CABM)
Aersol Measurements data and results
- Mercury (NAtChem/Mercury)
Atmospheric Mercury Measurement data and results
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