North Dakota Administrative Code › Title 33.1 - Department of Environmental Quality › Article 33.1-24 - Hazardous Waste Management › Chapter 33.1-24-05 - Standards for Treatment, Storage, and Disposal Facilities and for the Management of Specific Hazardous Wastes and Specific Types of Hazardous Waste Management Facilities › STANDARDS FOR FACILITIES OPERATING UNDER A STANDARDIZED PERMIT › Appendix XIX

Current through Supplement No. 393, July, 2024
Reference Air
							 Concentrations*
Constituent
CAS No.
Reference Air Concentraion
							 (µg/m3)
Acetaldehyde
75-07-0
10
Acetonitrile
75-05-8
10
Acetophenone
98-86-2
100
Acrolein
107-02-8
20
Aldicarb
116-06-3
1
Aluminum Phosphide
20859-73-8
0.3
Allyl Alcohol
107-18-6
5
Antimony
7440-36-0
0.3
Barium
7440-39-3
50
Barium Cyanide
542-62-1
50
Bromomethane
74-83-9
0.8
Calcium Cyanide
592-01-8
30
Carbon Disulfide
75-15-0
200
Chloral
75-87-6
2
Chlorine (free)
0.4
2-Chloro-1,3-butadiene
126-99-8
3
Chromium III
16065-83-1
1000
Copper Cyanide
544-92-3
5
Cresols
1319-77-3
50
Cumene
98-82-8
1
Cyanide (free)
57-12-15
20
Cyanogen
460-19-5
30
Cyanogen Bromide
506-68-3
80
Di-n-butyl Phthalate
84-74-2
100
o-Dichlorobenzene
95-50-1
10
p-Dichlorobenzene
106-46-7
10
Dichlorodifluoromethane
75-71-8
200
2,4-Dichlorophenol
120-83-2
3
Diethyl Phthalate
84-66-2
800
Dimethoate
60-51-5
0.8
2,4-Dinitrophenol
51-28-5
2
Dinoseb
88-85-7
0.9
Diphenylamine
122-39-4
20
Endosulfan
115-29-1
0.05
Endrin
72-20-8
0.3
Fluorine
7782-41-4
50
Formic Acid
64-18-6
2000
Glycidyaldehyde
765-34-4
0.3
Hexachlorocyclopentadiene
77-47-4
5
Hexachlorophene
70-30-4
0.3
Hydrocyanic Acid
74-90-8
20
Hydrogen Chloride
7647-01-1
7
Hydrogen Sulfide
7783-06-4
3
Isobutyl Alcohol
78-83-1
300
Lead
7439-92-1
0.09
Maleic Anhydride
108-31-6
100
Mercury
7439-97-6
0.3
Methacrylonitrile
126-98-7
0.1
Methomyl
16752-77-5
20
Methoxychlor
72-43-5
50
Methyl Chlorocarbonate
79-22-1
1000
Methyl Ethyl Ketone
78-93-3
80
Methyl Parathion
298-00-0
0.3
Nickel Cyanide
557-19-7
20
Nitric Oxide
10102-43-9
100
Nitrobenzene
98-95-3
0.8
Pentachlorobenzene
608-93-5
0.8
Pentachlorophenol
87-86-5
30
Phenol
108-95-2
30
M-Phenylenediamine
108-45-2
5
Phenylmercuric Acetate
62-38-4
0.075
Phosphine
7803-51-2
0.3
Phthalic Anhydride
85-44-9
2000
Potassium Cyanide
151-50-8
50
Potassium Silver Cyanide
506-61-6
200
Pyridine
110-86-1
1
Selenious Acid
7783-60-8
3
Selenourea
630-10-4
5
Silver
7440-22-4
3
Silver Cyanide
506-64-9
100
Sodium Cyanide
143-33-9
30
Strychnine
57-24-9
0.3
1,2,4,5-Tetrachlorobenzene
95-94-3
0.3
2,3,4,6-Tetrachlorophenol
58-90-2
30
Tetraethyl Lead
78-00-2
0.0001
Tetrahydrofuran
109-99-9
10
Thallic Oxide
1314-32-5
0.3
Thallium
7440-28-0
0.5
Thallium (I) Acetate
563-68-8
0.5
Thallium (I) Carbonate
6533-73-9
0.3
Thallium (I) Chloride
7791-12-0
0.3
Thallium (I) Nitrate
10102-45-1
0.5
Thallium Selenite
12039-52-0
0.5
Thallium (I) Sulfate
7446-18-6
0.075
Thiram
137-26-8
5
Toluene
108-88-3
300
1,2,4-Trichlorobenzene
120-82-1
20
Trichloromonofluoromethane
75-69-4
300
2,4,5-Trichlorophenol
95-95-4
100
Vanadium Pentoxide
1314-62-1
20
Warfarin
81-81-2
0.3
Xylenes
1330-20-7
80
Zinc Cyanide
557-21-1
50
Zinc Phosphide
1314-84-7
0.3
*The reference air concentration for other
							 appendix V of chapter 33.1-24-02 constituents not listed herein or in appendix
							 XX of 33.1-24-05 is 0.1 µg/m3.