Ambient Air Quality Guideline Development in Alberta Environmental Guidelines

摘要

Recent work in Alberta on ambient air quality auideline development for protection of environmental receptors is presented and discussed. An ethylene guideline (interim) has recently been released for stakeholder and public review. An interim acid deposition guideline (a critical load) has been adopted, and an objective (a target load) is being developed. alberta is participating in the development of an ambient air ozone objective through participation in the Working Group on Air Quality Objectives and Guidelines, a subcommittee of the Canadian Environmental Protection Act/Federal-Provincial Advisory Committee. Also through this process, Alberta participated in the development and release of part 1 of the national protocol for the derivation of National Ambient Air Quality Objectives, and the national Science Assessment Document for hydrogen fluoride. The processes used in Alberta to derive guidelines and objectives for the protection of environmental receptors are also discussed.