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R.R.O. 1990, Reg. 337: AMBIENT AIR QUALITY CRITERIA
under Environmental Protection Act, R.S.O. 1990, c. E.19
Skip to content| revoked or spent August 31, 2008 | |
| August 31, 2007 – August 30, 2008 | |
| December 16, 1994 – August 30, 2007 |
Environmental Protection Act
Loi sur la protection de l’environnement
R.R.O. 1990, REGULATION 337
AMBIENT AIR QUALITY CRITERIA
Note: This Regulation was revoked on August 31, 2008. See: O. Reg. 518/07, ss. 1, 2.
Last amendment: O. Reg. 518/07.
This Regulation is made in English only.
1. The desirable ambient air quality criteria for each contaminant set out in Column 1 of the Schedule is that amount of concentration or total amount of contaminant set out opposite thereto in Column 3 of the Schedule in the unit of measurement set out opposite thereto in Column 2 of the Schedule for the time set out opposite thereto in Column 4 of the Schedule. R.R.O. 1990, Reg. 337, s. 1.
SCHEDULE
Item |
Column 1 |
Column 2 |
Column 3 |
Column 4 |
Column 5 |
Name of Contaminant |
Unit of Measurement |
Average Amount of Concentration or Total Amount of Contaminant |
Period of Time |
Approximate Equivalent at 10°C and 760 mm Hg pressure | |
1. |
Arsenic |
Micrograms of Arsenic per cubic metre of air |
25 |
24 hours |
|
2. |
Cadmium |
Micrograms of cadmium per cubic metre of air |
2.0 |
24 hours |
|
3. |
Carbon Monoxide |
Parts of carbon monoxide per one million parts of air by volume |
30 |
1 hour |
36,200 ug/m3 |
13 |
8 hours |
15,700 ug/m3 | |||
4. |
Dustfall |
Tons of dustfall per square mile per month |
20 total |
30 days |
|
13 |
1 year |
||||
5. |
Fluorides (Gaseous) April 15 to October 15 |
Parts of fluorides per billion parts of air by volume (Expressed as HF) |
1.0 |
24 hours |
0.86 ug/m3 |
0.4 |
30 days |
0.34 ug/m3 | |||
6. |
Total Fluorides (Gaseous and Particulate) April 15 to October 15 |
Parts of fluorides per one billion parts of air by volume (Expressed as HF) |
2.0 |
24 hours |
1.72 ug/m3 |
0.8 |
30 days |
0.69 ug/m3 | |||
7. |
Total Fluorides (Gaseous and Particulate) October 16 to April 14 |
Parts of fluorides per one billion parts of air by volume (Expressed as HF) |
4.0 |
24 hours |
3.44 ug/m3 |
1.6 |
30 days |
1.38 ug/m3 | |||
8. |
Fluorides in Forage for Consumption by Livestock |
Parts of total fluorides per one million parts forage (dry weight) |
35 |
Individual Sample |
|
9. |
Fluoridation (total) April 15 to October 15 |
Micrograms of total fluorides collected by 100 sq. centimetres of limed filter paper |
40 |
30 days |
|
10. |
Fluoridation (total) October 16 to April14 |
Micrograms of total fluorides collected by 100 sq. centimetres of limed filter paper |
80 |
30 days |
|
11. |
Hydrogen Sulphide |
Parts of hydrogen sulphide per one million parts of air by volume |
0.02 |
1 hour |
30 ug/m3 |
12. |
Lead |
Micrograms of lead per cubic metre of air |
2.0 |
24 hours |
|
0.7 arithmetic average |
30 days |
||||
13. |
Mercaptans |
Parts of mercaptans per one million parts of air by volume (Expressed as methyl mercaptan) |
0.01 |
1 hour |
20 ug/m3 |
14. |
Mercury |
Micrograms of mercury per cubic metre of air |
2.0 |
24 hours |
|
15. |
Nickel |
Micrograms of Nickel per cubic metre of air |
2.0 |
24 hours |
|
16. |
Nitrogen Dioxide |
Parts of nitrogen dioxide per one million parts of air by volume |
0.20 |
1 hour |
400 ug/m3 |
0.10 |
24 hours |
200 ug/m3 | |||
17. |
Oxidants (total) |
Parts of total oxidants per one million parts of air by volume |
0.10 |
1 hour |
|
18. |
Ozone |
Parts of ozone per one million parts of air by volume |
0.08 |
1 hour |
165 ug/m3 |
19. |
Soiling |
Coefficient of Haze per 1,000 feet of air |
1.0 |
24 hours |
|
0.5 |
1 year |
||||
20. |
Sulphation |
Milligrams of sulphur trioxide per 100 sq. cm of exposed lead peroxide per day |
0.7 |
30 days |
|
21. |
Sulphur Dioxide |
Parts of sulphur dioxide per one million parts of air by volume |
0.25 |
1 hour |
690 ug/m3 |
0.10 |
24 hours |
275 ug/m3 | |||
0.02 |
1 year |
55 ug/m3 | |||
22. |
Suspended Particulate Matter |
Micrograms of suspended particulate matter per cubic metre of air |
120 |
24 hours |
|
60 geometric mean |
1 year |
||||
23. |
Vanadium |
Micrograms of vanadium per cubic metre of air |
2.0 |
24 hours |
R.R.O. 1990, Reg. 337, Sched.; O. Reg. 794/94, s. 1.