Michigan Air Toxics System
Initial Threshold Screening Level/Initial Risk Screening Level (ITSL/IRSL)
Toxics Screening Level Query Results
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The results of your search are displayed below. Click any column heading to sort.
Click here to see descriptions of column headings.
If a number appears in the "notes" column for a given, chemical, see the definition on the bottom of this page.
It is possible to cut and paste the table below into a spreadsheet program for further manipulation. |
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Page 2 of 51 - 1275 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 |
| 100527 |
benzaldehyde |
|
FINAL |
|
|
|
|
0.4 |
4 |
annual |
| 67663 |
chloroform |
|
FINAL |
|
|
|
|
0.4 |
4 |
annual |
| 86748 |
carbazole |
|
FINAL |
|
|
|
|
0.4 |
4 |
annual |
| 116143 |
tetrafluoroethylene |
|
FINAL |
|
|
|
|
0.4 |
4 |
annual |
| 88062 |
2,4,6-trichlorophenol |
|
FINAL |
|
|
|
|
0.3 |
3 |
annual |
| 75569 |
propylene oxide |
|
FINAL |
30 |
annual |
|
|
0.3 |
3 |
annual |
| 106467 |
1,4-dichlorobenzene |
|
FINAL |
800 |
annual |
|
|
0.25 |
2.5 |
annual |
| 88733 |
1-chloro-2-nitrobenzene |
|
FINAL |
|
|
|
|
0.21 |
2.1 |
annual |
| 79016 |
trichloroethylene |
|
FINAL |
2 |
24 hr |
|
|
0.2 |
2 |
annual |
| 78875 |
propylene dichloride |
|
FINAL |
4 |
annual |
|
|
0.2 |
2 |
annual |
| 75127 |
formamide |
|
FINAL |
600 |
annual |
|
|
0.2 |
2 |
annual |
| 119619 |
benzophenone |
|
FINAL |
100 |
annual |
|
|
0.2 |
2 |
annual |
| 123911 |
1,4-dioxane |
|
FINAL |
100 |
annual |
7200 |
1 hr |
0.2 |
2 |
annual |
| 542756 |
1,3-dichloropropene |
|
FINAL |
20 |
annual |
|
|
0.2 |
2 |
annual |
| 68479981 |
Diethyl methyl benzenediamine |
|
FINAL |
80 |
24 hr |
|
|
0.2 |
2 |
annual |
| 56235 |
carbon tetrachloride |
|
FINAL |
480 |
annual |
|
|
0.17 |
1.7 |
annual |
| 75354 |
vinylidene chloride (1,1-dichloroethylene) |
|
FINAL |
7.3 |
annual |
|
|
0.15 |
1.5 |
annual |
| 90120 |
1-methyl naphthalene |
|
FINAL |
250 |
annual |
|
|
0.14 |
1.4 |
annual |
| 1313275 |
molybdenum trioxide |
|
FINAL |
5 |
8 hr |
|
|
0.12 |
1.2 |
annual |
| 75014 |
vinyl chloride |
|
FINAL |
100 |
annual |
|
|
0.11 |
1.1 |
annual |
| 71432 |
benzene |
|
FINAL |
30 |
annual |
30 |
24 hr |
0.1 |
1 |
annual |
| 67721 |
hexachloroethane |
13 |
FINAL |
30 |
annual |
1600 |
8 hr |
0.1 |
1 |
annual |
| 75525 |
nitromethane |
|
FINAL |
70 |
annual |
|
|
0.1 |
1 |
annual |
| 98828 |
cumene |
|
FINAL |
400 |
annual |
|
|
0.1 |
1 |
annual |
| 630206 |
1,1,1,2-tetrachloroethane |
|
FINAL |
|
|
|
|
0.1 |
1 |
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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