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 5 of 52 - 1277 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 |
| 64741793 |
petroleum coke |
26 |
FINAL |
|
|
|
|
|
|
|
| 28553120 |
diisononyl phthalate |
26 |
FINAL |
75 |
annual |
|
|
|
|
|
| 25068386 |
bisphenol a/epichlorohydrin resin |
26 |
FINAL |
|
|
|
|
|
|
|
| 64741555 |
naphtha (petroleum), light catalytic cracked |
25 |
FINAL |
5600 |
annual |
|
|
|
|
|
| 64741839 |
naphtha, heavy thermal cracked |
25 |
FINAL |
5600 |
annual |
|
|
|
|
|
| 64741599 |
distillates, (petroleum), light catalytic cracked |
24 |
FINAL |
93 |
annual |
|
|
|
|
|
| 64741828 |
distillates (petroleum), light thermal cracked |
24 |
FINAL |
93 |
annual |
|
|
|
|
|
| 15821837 |
propylene glycol n-butyl ether (beta isomer) |
23 |
FINAL |
77 |
annual |
|
|
|
|
|
| 63716405 |
n-butoxy propanol (mixed isomers) |
23 |
FINAL |
77 |
annual |
|
|
|
|
|
| 29387868 |
propylene glycol, n-butyl ether (mixed isomers) |
23 |
FINAL |
77 |
annual |
|
|
|
|
|
| 5131668 |
propylene glycol n-butyl ether (alpha isomer) |
23 |
FINAL |
77 |
annual |
|
|
|
|
|
| 106978 |
butane |
22 |
FINAL |
23800 |
8 hr |
|
|
|
|
|
| 75285 |
isobutane |
22 |
FINAL |
23800 |
8 hr |
|
|
|
|
|
| 74873 |
methyl chloride |
21 |
FINAL |
90 |
annual |
|
|
|
|
|
| 104870 |
p-tolualdehyde |
20 |
FINAL |
440 |
annual |
|
|
|
|
|
| 620235 |
m-tolualdehyde |
20 |
FINAL |
440 |
annual |
|
|
|
|
|
| 106423 |
p-xylene |
2 |
FINAL |
390 |
annual |
|
|
|
|
|
| 108383 |
m-xylene |
2 |
FINAL |
390 |
annual |
|
|
|
|
|
| 95476 |
o-xylene |
2 |
FINAL |
390 |
annual |
|
|
|
|
|
| 1330207 |
mixed xylenes |
2 |
FINAL |
390 |
annual |
|
|
|
|
|
| 19549805 |
4,6-dimethyl-2-heptanone |
19 |
FINAL |
0.1 |
annual |
|
|
|
|
|
| 13466789 |
carene, delta |
18 |
FINAL |
1120 |
8 hr |
|
|
|
|
|
| 8006642 |
turpentine |
18 |
FINAL |
1120 |
8 hr |
|
|
|
|
|
| 80568 |
pinene, alpha |
18 |
FINAL |
1120 |
8 hr |
|
|
|
|
|
| 127913 |
pinene, beta |
18 |
FINAL |
1120 |
8 hr |
|
|
|
|
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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 [email protected] or (517) 582-3779. |
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