Pictured here is the old Carnaby beehive burner, currently not in use. Industrial sources are typically ones that are regulated by government in the form of a BC Environment air emissions permit or whose emissions are controlled by regulation . These would include open burning of land clearing debris , beehive burner and other sawmill emissions , and other 'smokestack-type' sources.
Domestic sources tend to be smaller and emitted by individuals.
The domestic category would also include industrial transportation such as rail and trucking. Many of these emission sources are in the air at any particular time. Also note the relative insignificance of space heating in the regional perspective on a total annual loading basis. Permitted and domestic sources are concentrated in the valleys containing much of the region's population. While this source is consistent for the emissions data presented below, its' accuracy is, however, very dependent on how recent the air emissions permit has been updated and how much permit 'compliance insurance' an emitter wants to maintain.