Michigan Air Toxics System
Initial Threshold Screening Level/Initial Risk Screening Level (ITSL/IRSL)
Toxics Screening Level Query Results
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If a number appears in the "notes" column for a given, chemical, see the definition on the bottom of this page.
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Page 2 of 51 - 1271 record(s) matched your criteria |
| CAS Number |
Chemical Name |
Notes |
Status |
ITSL (μg/m3) |
Averaging Time |
Second ITSL (μg/m3) |
Second ITSL Avg Time |
IRSL
(μg/m3) |
SRSL
(μg/m3) |
Carc Avg Time |
| 75525 |
nitromethane |
|
FINAL |
70 |
annual |
|
|
0.1 |
1 |
annual |
| 75569 |
propylene oxide |
|
FINAL |
30 |
annual |
|
|
0.3 |
3 |
annual |
| 76448 |
heptachlor |
|
FINAL |
|
|
|
|
0.0008 |
0.008 |
annual |
| 78591 |
isophorone |
|
FINAL |
280 |
1 hr |
|
|
3.7 |
37 |
annual |
| 78795 |
isoprene |
|
FINAL |
|
|
|
|
0.02 |
0.2 |
annual |
| 78875 |
propylene dichloride |
|
FINAL |
4 |
annual |
|
|
0.2 |
2 |
annual |
| 79436 |
Dichloroacetic acid |
|
FINAL |
0.5 |
annual |
|
|
0.07 |
0.7 |
annual |
| 79469 |
2-nitropropane |
|
FINAL |
20 |
annual |
|
|
0.00037 |
0.0037 |
annual |
| 79005 |
1,1,2-trichloroethane |
|
FINAL |
11 |
annual |
160 |
24 hr |
0.063 |
0.63 |
annual |
| 79016 |
trichloroethylene |
|
FINAL |
2 |
24 hr |
|
|
0.2 |
2 |
annual |
| 79061 |
acrylamide |
|
FINAL |
6 |
24 hr |
|
|
0.005 |
0.05 |
annual |
| 79345 |
1,1,2,2-tetrachloroethane |
|
FINAL |
|
|
|
|
0.02 |
0.2 |
annual |
| 86748 |
carbazole |
|
FINAL |
|
|
|
|
0.4 |
4 |
annual |
| 87627 |
2,6-xylidine |
|
FINAL |
|
|
|
|
0.78 |
7.8 |
annual |
| 87683 |
hexachlorobutadiene |
|
FINAL |
|
|
|
|
0.05 |
0.5 |
annual |
| 87865 |
pentachlorophenol |
|
FINAL |
20 |
annual |
|
|
0.009 |
0.09 |
annual |
| 91598 |
2-naphthylamine |
|
FINAL |
|
|
|
|
0.00013 |
0.0013 |
annual |
| 91941 |
dichlorobenzidine |
|
FINAL |
|
|
|
|
0.002 |
0.02 |
annual |
| 92524 |
biphenyl |
|
FINAL |
13 |
8 hr |
|
|
0.43 |
4.3 |
annual |
| 92875 |
benzidine |
|
FINAL |
|
|
|
|
0.00002 |
0.0002 |
annual |
| 88733 |
1-chloro-2-nitrobenzene |
|
FINAL |
|
|
|
|
0.21 |
2.1 |
annual |
| 90120 |
1-methyl naphthalene |
|
FINAL |
250 |
annual |
|
|
0.14 |
1.4 |
annual |
| 90437 |
o-phenylphenol |
|
FINAL |
|
|
|
|
1.1 |
11 |
annual |
| 95534 |
o-toluidine |
|
FINAL |
|
|
|
|
0.07 |
0.7 |
annual |
| 91087 |
2,6-toluene diisocyanate |
13 |
FINAL |
0.07 |
annual |
0.4 |
8 hr |
0.03 |
0.3 |
annual |
|
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Notes: For a list of notes which correspond to any numbers which may appear in the “Notes” column above, please follow this link.
https://www.michigan.gov/egle/-/media/Project/Websites/egle/Documents/Programs/AQD/toxics/itsl-irsl-screening-level-footnotes.pdf
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| For issues related to ITSL/IRSL database content, contact Doreen Lehner at lehnerD@michigan.gov or (517) 582-3779. |
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