Modelo De Dispersión De Calidad Del Aire

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 againstadverse 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 differentaveraging times (e.g., 24 hour, 1 hour and 10 minutes) appropriate for the effect that they are intended to protect against. The effects considered may be health, odour, vegetation, soiling, visibility, corrosion or other effects. AAQCs may be changed from time to time based on new science. If a contaminant has multiple AAQCs, each representing a different effect, all of them should be used forassessment purposes.

Organization of the document This Summary is comprised of a table listing the AAQCs for each contaminant with the averaging time period(s) and limiting effect identified beside the respective value with explanatory footnotes. The table consists of six columns: i) A simple row counter (Row); ii) The Chemical Abstracts Service Registry Number (CASRN); iii) The contaminant namelisted in alphabetical order (Contaminant); iv) The AAQC concentration (AAQC µg/m3); v) The averaging time period (Averaging Time); vi) The limiting effect that corresponds to the AAQC (Limiting Effect). (Note: Another list, containing the same information but sorted according to CASRN, is also available on the MOE’s website).

2

Row 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 2223 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43

CASRN 75-07-0 64-19-7 67-64-1 98-86-2 75-05-8 74-86-2 107-02-8 79-06-1 107-13-1 124-04-9 N/A 106-92-3 300-92-5 1344-28-1 7047-84-9 637-12-7 7664-41-7 12125-02-9 123-92-2 628-63-7 626-38-0 7440-36-0 7440-38-2 7784-42-1 1332-21-4 7440-39-3 71-43-2 50-32-8 65-85-0 95-16-9 98-88-4 100-51-6 7440-41-7 92-52-4 1303-96-4 10043-35-37440-42-8 10294-33-4 10294-34-5 7637-07-2 314-40-9 7726-95-6 75-25-2 Acetaldehyde Acetic acid Acetone Acetophenone Acetonitrile Acetylene Acrolein Acrylamide Acrylonitrile Adipic acid

Contaminant

AAQC (1) (µg/m³) 500 500 TBU - 2,500 11,880 1,167 850 70 TBU - 56,000 0.4 4.5 15 0.12 0.6 1,167 120 60 2,180 120 2,180 2,180 100 120 53,200 53,200 66,500 25 0.3 5 10 0.04 fibres/cm 10 0.45 2.3 0.000010.00005 700 70 125 880 0.01 TBU - 60 33 33 120 35 35 2 10 20 55
(2) 3 (2) (2)

Averaging Time 24 Hour 1/2 Hour 24 Hour 24 Hour 1 Hour 10 Minute 24 Hour 24 Hour 24 Hour 1 Hour 24 Hour Annual 24 Hour 24 Hour 24 Hour 24 Hour 24 Hour 24 Hour 24 Hour 24 Hour 24 Hour 24 Hour 24 Hour 24 Hour 24 Hour 24 Hour 24 Hour 24 Hour 1/2 Hour 24 Hour 24 Hour Annual 24 Hour Annual 24 Hour 24 Hour 24 Hour 24 Hour 24Hour 24 Hour 1 Hour 24 Hour 24 Hour 24 Hour 24 Hour 24 Hour 24 Hour 24 Hour 24 Hour 24 Hour

Limiting Effect Health Health Odour Health Health Odour Health Odour Health Health Health Health Health Health Particulate Health Health Particulate Health Health Health Particulate Health & Odour Health & Odour Health & Odour Health Health Health Health Health Health Health Health Health Health HealthHealth Corrosion & Health Health Health Odour Health Health Particulate Corrosion Corrosion Vegetation Health Health Health

Alkyltoluene sulphonamide, NAllyl glycidyl ether Aluminum distearate Aluminum oxide Aluminum stearate Aluminum tristearate Ammonia Ammonium chloride Amyl acetate, isoAmyl acetate, nAmyl acetate, secondary Antimony and compounds Arsenic and compounds Arsine Asbestos (fibres...