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Michigan Administrative Code (Last Updated: November 16, 2016) |
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Department LR. Licensing and Regulatory Affairs |
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MIOSHA |
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Chapter Part 601. Air Contaminants for Construction |
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Part 601. AIR CONTAMINANTS FOR CONSTRUCTION |
Section 325.60156. Maximum allowable concentrations for substances; C and D.
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Rule 6. Table 2. Substances C and D
TABLE 2
Substance
MAC/Ceiling/STEL
ppm
mg/m3
Cadmium and cadmium compounds, see OH Part 309, R 325.51851 to R 325.51886*
Calcium arsenate
---
1
Calcium carbonate
Inert dust
Calcium oxide
---
5
Camphor (synthetic)
2
---
Carbaryl (Sevin®)
---
5
Carbon black
---
3.5
Carbon dioxide
5,000
9,000
S
Carbon disulfide
20
60
Carbon monoxide
50
55
S,C
Carbon tetrachloride
10
65
Cellulose (paper fiber)
Inert dust
S
Chlordane
---
0.5
S
Chlorinated camphene
---
0.5
Chlorinated diphenyl oxide
---
0.5
Chlorine
1
3
Chlorine dioxide
0.1
0.3
C
Chlorine trifluoride
0.1
0.4
C
Chloroacetaldehyde
1
3
alpha-Chloroacetophenone (phenacylchloride)
0.05
0.3
Chlorobenzene (monochlorobenzene)
75
350
o-Chlorobenzylidene malononitrile (OCBM)
0.05
0.4
Chlorobromomethane
200
1,050
2-Chloro-1,3-butadiene, see Chloroprene
S
Chlorodiphenyl (42% Chlorine)
---
1
S
Chlorodiphenyl (54% Chlorine)
---
0.5
1-Chloro-2,3-epoxypropane, see Epichlorohydrin
2-Chloroethanol, see Ethylene chlorohydrin
Chloroethylene, see Vinyl chloride
C
Chloroform (trichloromethane)
50
240
1-Chloro-1-nitropropane
20
100
Chloropicrin
0.1
0.7
S
Chloroprene (2-chloro-1,3-butadiene)
25
90
Chromic acid and chromates (as Cr+6) see OH Part 604, R 325.51995 to R 325.51997*, ***
---
---
Chromium (VI) compounds, see OH Part 604, R 325.51995 to R 325.51997*, ***
Chromium, sol. chromic & chromous salts (as Cr) Metal & insol. Salts
---
---
0.5
1
Coal tar pitch volatiles (benzene soluble fraction: anthracene, BaP, phenanthrene, acridine, chrysene, pyrene)
---
0.2
Cobalt, metal fume & dust
---
0.1
Coke oven emissions, see OH Part 314, R 325.50101 to R 325.50136*
Copper fume Dusts and mists
---
---
0.1
1
Corundum (Al203)
Inert dust
Cotton dust (raw)
---
1
Crag® herbicide
---
15
S
Cresol (all isomers)
5
22
Crotonaldehyde
2
6
S
Cumene
50
245
S
Cyanide (as CN)
---
5
Cyanogen
10
---
Cyclohexane
300
1,050
Cyclohexanol
50
200
Cyclohexanone
50
200
Cyclohexene
300
1,015
Cyclopentadiene
75
200
2,4-D
---
10
S
DDT (Dichlorodiphenyl-trichloroethane)
---
1
DDVP, see Dichlorvos
S
Decaborane
0.05
0.3
S
Demeton®
---
0.1
Diacetone pentanone)
alcohol
(4-hydroxy-4-methyl-2-
50
240
1,2-Diainoethane, see Ethylenediamine
Diazomethane
0.2
0.4
Diborane
0.1
0.1
S,C
1,2-Dibromoethane (ethylene dibromide)
25
190
Dibutyl phosphate
1
5
Dibutyl phthalate
---
5
C
Dichloroacetylene
0.1
0.4
C
o-Dichlorobenzene
50
300
p-Dichlorobenzene
75
450
Dichlorodifluoromethane
1,000
4,950
1,3-Dichloro-5,5-dimethyl hydantoin
---
0.2
1,1-Dichloroethane
100
400
1,2-Dichloroethane
50
200
1,2-Dichloroethylene
200
790
S,C
Dichloroethyl ether
15
90
Dichloromethane, see Methylene chloride
Dichloromonofluoromethane
1,000
4,200
C
1,1-Dichloro-1-nitroethane
10
60
1,2-Dichloropropane, see Propylene dichloride
Dichlorotetrafluoroethane
1,000
7,000
S
Dichlorvos (DDVP)
---
1
S
Dieldrin
---
0.25
Diethylamine
25
75
S
Diethylamino, ethanol
10
50
S,C
Diethylene triamine
10
42
Diethyl ether, see Ethyl ether
Difluorodibromomethane
100
860
C
Diglycidyl ether (DGE)
0.5
2.8
Dihydroxybenzene, see Hydroquinone
Diisobutyl ketone
50
290
S
Diisopropylamine
5
20
Dimethoxymethane, see Methylal
S
Dimethyl acetamide
10
35
Dimethylamine
10
18
Dimethylaminobenzene, see Xylidene
S
Dimethylaniline (N-dimethylaniline)
5
25
Dimethylbenzene, see Xylene
Dimethyl-1,2-dibromo-2,2-dichloroethylphosphate (Dibrom®)
---
3
S
Dimethylformamide
10
30
2,6-Dimethylheptanone, see Diisobutyl ketone
S
1,1-Dimethylhydrazine
0.5
1
Dimethylphthalate
---
5
S
Dimethylsulfate
1
5
S
Dinitrobenzene (all isomers)
---
1
S
Dinitro-o-cresol
---
0.2
S
Dinitrotoluene
---
1.5
S
Dioxane (diethylene dioxide)
100
360
Diphenyl
0.2
1
Diphenyl amine
---
10
Diphenylmethane diisocyanate, see Methylene bisphenyl isocyanate (MDI)
S
Dipropylene glycol methyl ether
100
600
Di-sec, octyl phthalate (di-2-ethylhexylphthalate)
---
5
A --- See R 325.60154(2)(a).
C --- See R 325.60154(2)(b).
S --- See R 325.60154(2)(c).
* Caution--these rules contain extensive requirements for exposure to these substances.
*** If the exposure limit in 29 C.F.R. §1926.1126 (adopted by reference in OH Part 604, R 325.51995 to R 325.51997) is stayed or is otherwise not in effect, the exposure limit is
0.1 mg/m3 for chromic acid and chromates (Cr+6) as an 8-hour TWA.
History: 2002 AACS; 2013 AACS.