Transcription of AMBIENT AIR QUALITY CRITERIA - airqualityontario.com
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AMBIENT AIR QUALITY CRITERIA - airqualityontario.com
ONTARIO S AMBIENT AIR QUALITY CRITERIA (Sorted by Contaminant Name) STANDARDS DEVELOPMENT BRANCH ONTARIO MINISTRY of the ENVIRONMENT April 2012 PIBS # 6570e01 This document provides a list of the AMBIENT Air QUALITY CRITERIA (AAQCs) developed by the Ontario Ministry of the Environment (MOE). An AAQC is a desirable concentration of a contaminant in air, based on protection against adverse effects on health or the environment. The term AMBIENT is used to reflect general air QUALITY independent of location or source of a contaminant. AAQCs are most commonly used in environmental assessments, special studies using AMBIENT air monitoring data, assessment of general air QUALITY in a community and annual reporting on air QUALITY across the province. AAQCs are set with different averaging times ( , 24 hour, 1 hour and 10 minutes) appropriate for the effect that they are intended to protect against.
An AAQC is a desirable concentration of a contaminant in air, based on protection against adverse effects on health or the environment. The term “ambient” is used to
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