Air Quality Standards (Residential)

Caselaw.Ninja, Riverview Group Publishing 2021 ©
Date Retrieved:	2024-11-23
CLNP Page ID:	2352
Page Categories:	[Interference of Reasonable Enjoyment (LTB)]]
Citation:	Air Quality Standards (Residential), CLNP 2352, <>, retrieved on 2024-11-23
Editor:	Sharvey
Last Updated:	2024/03/01

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Guide's

• https://www.ontario.ca/page/guideline-12-guideline-implementation-air-standards-ontario

2012 Building Code(O.Reg 332/12)

6.2.2. Ventilation

6.2.2.1. Required Ventilation

(1) Except as provided in Sentence (3), all buildings shall be ventilated in accordance with this Part.

(2) Except in storage garages and repair garages covered by Article 6.2.2.3., the rates at which outdoor air is supplied in buildings by ventilation systems shall be not less than the rates required by ANSI/ASHRAE 62.1, “Ventilation for Acceptable Indoor Air Quality”.

(3) Self-contained mechanical ventilation systems that serve only one dwelling unit and that conform to the requirements of Subsection 9.32.3. shall be considered to satisfy the requirements of this Article.

(4) Live/work units shall be mechanically ventilated in accordance with the requirements of Sentence (1).

6.2.2.2. Natural Ventilation

(1) Except as permitted by Sentence (2), the ventilation required by Article 6.2.2.1. shall be provided by mechanical ventilation except that it can be provided by natural ventilation or a combination of natural and mechanical ventilation in,

(a) buildings of other than residential occupancy having an occupant load of not more than one person per 40 m² during normal use,

(b) buildings of industrial occupancy where the nature of the process contained in them permits or requires the use of large openings in the building envelope even during the winter, or

(c) seasonal buildings not intended to be occupied during the winter.

(2) Where climatic conditions permit, buildings containing occupancies other than residential occupancies, may be ventilated by natural ventilation methods in lieu of mechanical ventilation where engineering data demonstrates that such a method will provide the required ventilation for the type of occupancy.

...

6.2.2.4. Air Contaminants

(1) Air contaminants released within buildings shall be removed insofar as possible at their points of origin and shall not be permitted to accumulate in concentrations greater than permitted in the ACGIH, “Industrial Ventilation Manual”.

(2) Systems serving spaces that contain sources of contamination and systems serving other occupied parts of the building but located in or running through spaces that contain sources of contamination shall be designed in such a manner as to prevent spreading of such contamination to other occupied parts of the building.

(3) Heating, ventilating and air-conditioning systems shall be designed to minimize growth of micro-organisms according to good engineering practice as described in 6.2.1.1.(1).

(4) Mechanical rooms containing refrigeration equipment shall be ventilated in accordance with CSA-B52, “Mechanical Refrigeration Code”.

O. Reg. 419/05: AIR POLLUTION - LOCAL AIR QUALITY

30. (1) A person who discharges or causes or permits the discharge of a contaminant listed in Schedule 6 into the air shall comply with subsections (3) and (4) if there is reason to believe, based on any relevant information, that discharges of the contaminant may result in the concentration of the contaminant exceeding,

(a) the half hour upper risk threshold set out for that contaminant in Schedule 6 at a point of impingement, if section 19 applies to the person in respect of the contaminant; or

(b) the other time period upper risk threshold set out for that contaminant in Schedule 6 at a point of impingement, if section 20 applies to the person in respect of the contaminant. O. Reg. 516/07, s. 24 (1); O. Reg. 507/09, s. 30 (1); O. Reg. 109/18, s. 8.

(1.1) The two items in Schedule 6 that set out upper risk thresholds for total reduced sulphur (TRS) compounds specify the facilities to which they apply. O. Reg. 516/07, s. 24 (1).

(2) Without limiting the generality of subsection (1), the reference in that subsection to relevant information includes relevant information from predictions of a dispersion model, including,

(a) an approved dispersion model or other dispersion model; or

(b) a dispersion model that is not used in accordance with this Regulation. O. Reg. 419/05, s. 30 (2).

(3) If subsection (1) applies to a discharge, the person who discharged or caused or permitted the discharge of the contaminant shall immediately notify the Director in writing. O. Reg. 419/05, s. 30 (3).

(4) If subsection (1) applies to a discharge, the person who discharged or caused or permitted the discharge of the contaminant shall, within three months after the discharge, prepare a report in accordance with section 26 and submit the report to the Director. O. Reg. 419/05, s. 30 (4).

...

(7) If, according to an approved dispersion model that is used for the purpose of preparing a report under subsection (4), discharges of a contaminant may result in a contravention of section 20 because of the concentration of the contaminant at a point of impingement located on a place referred to in subsection (8), the person who prepares the report shall include the following in the report:

1. A statement or map identifying the place that the point of impingement is located on.

2. A statement specifying the highest concentration of the contaminant that the approved dispersion model predicts for the point of impingement.

3. A statement specifying the number of averaging periods for which the approved dispersion model predicts that discharges of a contaminant may result in a contravention of section 20 because of the concentration of the contaminant at the point of impingement, expressed as a percentage of the number of averaging periods in,

i. a period of five years, if the approved dispersion model was used in accordance with meteorological data described in paragraph 1, 1.1, 2 or 2.1 of subsection 13 (1),

ii. a period equal to the length of the period over which the meteorological data was collected, if the approved dispersion model was used in accordance with local or site-specific meteorological data described in paragraph 3 of subsection 13 (1), or

iii. a period equal to the length of the period that was used for the purposes of the computational method, if the approved dispersion model was used in accordance with meteorological data obtained from a computational method in accordance with paragraph 4 of subsection 13 (1). O. Reg. 516/07, s. 24 (5).

(8) The following places are the places referred to in subsection (7) and in subsection 35 (2):

1. A health care facility.

2. A senior citizens’ residence or long-term care facility.

3. A child care facility.

4. An educational facility.

5. A dwelling.

6. A place specified by the Director in a notice under subsection (9) as a place where discharges of a contaminant may cause a risk to human health. O. Reg. 419/05, s. 30 (8); O. Reg. 507/09, s. 30 (4).

(9) For the purpose of paragraph 6 of subsection (8), the Director may give written notice to a person who is required to notify the Director under subsection (3) stating that the Director is of the opinion that the discharge may cause a risk to human health at a place specified in the notice. O. Reg. 419/05, s. 30 (9).

...

35. (1) The Director may approve a request under section 32 and set a site-specific standard for the contaminant that is the subject of the request if,

(a) the person making the request has complied with sections 32 to 34.1; and

(b) the Director is of the opinion that,

(i) the person making the request cannot comply with section 20 with respect to the standard set out in Schedule 3 for the contaminant for the averaging period specified under paragraph 0.1 of subsection 33 (1) because,

(A) it is not technically feasible for the person to comply, in the case of a person who is relying on any paragraph of subsection 32 (1), or

(B) it is not economically feasible for the person to comply, in the case of a person who is relying on a paragraph of subsection 32 (1) other than paragraph 4,

(ii) the difference between the standard set out in Schedule 3 for the contaminant for the averaging period specified in paragraph 0.1 of subsection 33 (1) and the site-specific standard set by the Director for the contaminant is the minimum difference necessary to enable the person to comply with section 20 with respect to the contaminant, and

(iii) there is no public interest reason sufficient to require the denial of the request. O. Reg. 507/09, s. 32 (1); O. Reg. 282/11, ss. 10 (1-4).

(2) Despite subsection (1), the Director shall not approve a request under section 32 to set a site-specific standard for a contaminant if the contaminant is listed in Schedule 6 and the Director is of the opinion that the site-specific standard is likely to permit discharges of the contaminant that too frequently result in the concentration of the contaminant at a point of impingement located on a place referred to in subsection 30 (8) exceeding the other time period upper risk threshold set out for the contaminant in Schedule 6. O. Reg. 507/09, s. 32 (1); O. Reg. 282/11, s. 10 (5).

...

SCHEDULE 6

UPPER RISK THRESHOLDS

Item	CAS No.	Contaminant	Half Hour Upper Risk Threshold (µg/m³)	Other Time Period Upper Risk Threshold (µg/m³)
1.	75-07-0	Acetaldehyde	5,000	5,000 (24 hour)
2.	67-64-1	Acetone	118,800	118,800 (24 hour)
3.	75-05-8	Acetonitrile	2,100	700 (24 hour)
4.	107-02-8	Acrolein	12	4 (24 hour)
5.	107-13-1	Acrylonitrile	180	60 (24 hour)
6.	7664-41-7	Ammonia	3,600	1,000 (24 hour)
6.0.1	71-43-2	Benzene	300	100 (24 hour)
6.0.2	50-32-8	Benzo(a)pyrene	0.015	0.005 (24 hour)
6.0.3	106-99-0	Butadiene, 1,3-	900	300 (24 hour)
6.1	71-36-3	Butanol, n-	18,000	6,000 (24 hour)
6.2	7440-43-9	Cadmium and Cadmium Compounds	0.75	0.25 (24 hour)
7.	56-23-5	Carbon Tetrachloride	72	24 (24 hour)
8.	7782-50-5	Chlorine	300	100 (24 hour)
8.1	10049-04-4	Chlorine Dioxide	60	20 (24 hour)
8.2	75-00-3	Chloroethane	75,000	25,000 (24 hour)
9.	67-66-3	Chloroform	300	100 (24 hour)
9.1	18540-29-9	Chromium Compounds (Hexavalent)	0.21	0.07 (24 hour)
9.2	7440-47-3	Chromium and Chromium Compounds (Metallic, Divalent and Trivalent	15	5 (24 hour)
10.	110-82-7	Cyclohexane	183,000	61,000 (24 hour)
11.	117-81-7	Di(2-ethylhexyl) Phthalate	1,500	500 (24 hour)
12.	106-46-7	Dichlorobenzene, 1,4-	2,850	950 (24 hour)
12.1	75-34-3	Dichloroethane, 1,1-	4,950	1,650 (24 hour)
12.2	not applicable	Dioxins, Furans and Dioxin-like PCBs	0.000003	0.000001 (24 hour)
13.	100-41-4	Ethyl Benzene	14,000	10,000 (24 hour)
14.	60-29-7	Ethyl Ether	7,000	80,000 (24 hour)
15.	107-06-2	Ethylene Dichloride	600	200 (24 hour)
15.1	75-21-8	Ethylene Oxide	60	20 (24 hour)
16.	4035-89-6	HDI Biuret (HDI-BT)	30	30 (24 hour)
17.	3779-63-3	HDI Isocyanurate (HDI-IC)	30	30 (24 hour)
18.	28182-81-2	HDI Polyisocyanate (HDI-BT & HDI-IC)	30	30 (24 hour)
19.	822-06-0	Hexamethylene Diisocyanate (HDI) Monomer	1	0.3 (24 hour)
19.1	110-54-3	Hexane, n- (part of a mixture)	25,000	25,000 (24 hour)
19.2	110-54-3	Hexane, n- (n-Hexane and Hexane isomers only)	25,000	25,000 (24 hour)
20.	7647-01-0	Hydrogen Chloride	600	200 (24 hour)
21.	74-90-8	Hydrogen Cyanide	240	80 (24 hour)
21.1	7783-06-4	Hydrogen Sulphide	210	70 (24 hour)
21.2	78-83-1	Isobutanol	48,000	16,000 (24 hour)
22.	67-63-0	Isopropanol (Isopropyl Alcohol)	220,000	73,000 (24 hour)
22.1	7439-92-1	Lead and Lead Compounds	6	2 (24 hour)
22.1.1	7439-96-5	Manganese and Manganese Compounds	12	4 (24 hour)
23.	101-68-8	Methane Diphenyl Diisocyanate (MDI Monomer)	7	7 (24 hour)
23.1	74-87-3	Methyl Chloride	9,600	3,200 (24 hour)
24.	78-93-3	Methyl Ethyl Ketone (2-Butanone)	30,000	10,000 (24 hour)
25.	624-83-9	Methyl Isocyanate	10	10 (24 hour)
26.	75-09-2	Methylene Chloride	22,000	22,000 (24 hour)
27.	not applicable	Mineral Spirits	30,000	26,000 (24 hour)
28.	7440-02-0	Nickel and Nickel Compounds	6	2 (24 hour)
29.	Revoked:  O. Reg. 516/07, s. 32 (2).
30.	127-18-4	Perchloroethylene	10,800	3,600 (24 hour)
31.	108-95-2	Phenol	900	300 (24 hour)
31.1	7664-38-2	Phosphoric Acid	210	70 (24 hour)
32.	9016-87-9	Polymeric Methane Diphenyl Diisocyanate (PMDI)	7	7 (24 hour)
32.1	115-07-1	Propylene	120,000	40,000 (24 hour)
33.	75-56-9	Propylene Oxide	450	150 (24 hour)
33.1	7664-93-9	Sulphuric Acid	30	15 (24 hour)
33.2	7446-09-5	Sulphur Dioxide	830	690 (1 hour)
34.	584-84-9	Toluene Di-isocyanate, 2,4-	2	2 (24 hour)
35.	26471-62-5	Toluene Di-isocyanate, 2,4- and 2,6- (mixed isomers)	2	2 (24 hour)
35.1	not applicable	Total Reduced Sulphur (TRS) Compounds (facilities that are part of the class identified by NAICS code 3221 (Pulp, Paper and Paperboard Mills))	210	70 (24 hour)
35.2	not applicable	Total Reduced Sulphur (TRS) Compounds (other facilities)	210	70 (24 hour)
36.	79-01-6	Trichloroethylene (TCE)	3,600	1,200 (24 hour)
36.1	526-73-8	Trimethylbenzene, 1,2,3- (individual isomer or Trimethylbenzene mixture)	6,600	2,200 (24 hour)
36.2	95-63-6	Trimethylbenzene, 1,2,4- (individual isomer or Trimethylbenzene mixture)	6,600	2,200 (24 hour)
36.3	108-67-8	Trimethylbenzene, 1,3,5- (individual isomer or Trimethylbenzene mixture)	6,600	2,200 (24 hour)
36.4	7440-61-1	Uranium and Uranium Compounds in particulate matter that is less than 10 µm in diameter	4.5	1.5 (24 hour)
37.	75-01-4	Vinyl Chloride	300	100 (24 hour)
38.	1330-20-7	Xylenes	22,000	7,300 (24 hour)

O. Reg. 419/05, Sched. 6; O. Reg. 605/05, s. 16; O. Reg. 516/07, s. 32; O. Reg. 507/09, s. 37; O. Reg. 282/11, s. 17; O. Reg. 309/17, s. 3; O. Reg. 109/18, s. 15.