Any stationary source that usually releases emissions through stacks at elevated heights for which individual source records are maintained in the inventory and for which annual emissions exceed a specified cut-off level. While no designated cut-off level was used by the Pollution Data Branch to compile the 1995 emissions inventory, the provinces did employ such techniques. The cut-off level, in tonnes of emissions, varied from province to province.
a well defined source of pollution from a single point, such as a pipe (e.g., discharges of wastewater from municipal or industrial plants)
Pollution from a distinct, identifiable source, such as a pipe, smokestack or car exhaust.
A stationary facility or process that emits a significant amount of air pollution during manufacturing, power generation, heating, incineration, or other such activity. In NATA, USEPA used the term major source and included in it just those sources which emit at least 10 tons per year of any one hazardous air pollutant (HAP), or at least 25 tons per year total of any HAPs.
A source of sediment or nutrients that is restricted to one discharge location.
Specific sources of nutrient or polluted discharge to a lake: e.g. stormwater outlets.
Specific points of origin where pollutants are emitted into the atmosphere such as factory smokestacks.
are primarily discharges from municipal wastewater treatment plants associated with population centres or effluent discharges from industry.
Pollution from municipal and industrial facilities, usually entering a waterbody via discharge from a pipe or a discrete channel.
Specific locations of highly concentrated pollution discharge, such as factories, power plants, sewage treatment plants, underground coal mines, and oil wells.