MOECC Decision to proceed on accounting for cumulative air quality levels in air emissions permits The Ontario Ministry of the Environment, Conservation and Parks (MECP) has decided to proceed with formally accounting for cumulative air quality levels in selected air...
Amendments to Ontario’s Toxics Reduction Act Regulation O. Reg. 455/09. The MECP has proceeded with a number of changes to the toxic substances reduction planning process. Major amendments include changing the date for review and preparation of new versions of plans...
New dispersion model versions adopted April 1, 2018 On this date the MECP officially adopted AERMET/AERMOD v. 16216r, as an update to the previous regulatory version in Ontario (v. 14134). The MECP is requiring that all modelling should be carried out with the new...
Lowering of SO2 air quality standards On March 20, 2018, the MECP confirmed its regulatory proposal to change the sulphur dioxide (SO2) air standards over a five year phased-in period. The changes lower the regulatory standard for SO2 from the previous 1 hour standard...
Adoption of Mining Technical Standard The MECP announced that it has adopted a new Technical Standard for mining sites to address air emissions. This is a technology-based compliance approach that requires companies to invest in available technologies and practices to...
New/Updated Screening Levels for the Air Contaminants Benchmarks (ACB) List On April 27, 2018 the MECP expanded and updated the screening levels on the Air Contaminants Benchmarks (ACB) list from some 1,300 contaminants to over 4,500 contaminants. The list is a...
