The overall objective of this study was to provide uncertainty analysis on substance releases to air from point sources (PS), and area sources (AS) where applicable from the inventory compiled as part of the National Pollutant Release Inventory (NPRI) program. The selected sectors included in the analysis are: aluminum industries, iron and steel industries, cement and concrete industries, and electric power generation. Due to its significant contribution to Canada-wide emissions, residential wood burning was also included in the analysis. The baseline year of this study was 2009. The following priority substances, as applicable to the selected sectors, were included in the analysis:
- Air Pollutants (APs);
- Heavy Metals;
- Persistent Organic Pollutants (POPs); and,
- Carbonyl sulphide and hydrogen fluoride (HF)
An initial assessment was conducted to identify significant contaminate emissions from various sectors.
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