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Michigan Air Toxics System
Initial Threshold Screening Level/Initial Risk Screening Level (ITSL/IRSL)
Toxics Screening Level Query Results

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.

Page 3 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
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
91178 decahydronaphthalene   FINAL         0.03 0.3 annual
91203 naphthalene   FINAL 3 annual 520 8 hr 0.08 0.8 annual
91225 quinoline   FINAL         0.001 0.01 annual
96128 dibromochloropropane   FINAL 0.2 24 hr     0.0001 0.001 annual
96457 ethylene thiourea   FINAL 0.28 annual     0.01 0.1 annual
96231 1,3-dichloro-2-propanol   FINAL 3 annual     0.07 0.7 annual
96297 methylethylketoxime   FINAL         2.5 25 annual
98000 furfuryl alcohol   FINAL 5 annual     0.09 0.9 annual
98011 furfural   FINAL         0.06 0.6 annual
98953 nitrobenzene   FINAL 9 annual     0.025 0.25 annual
98828 cumene   FINAL 400 annual     0.1 1 annual
100414 ethylbenzene   FINAL 1000 24 hr     0.4 4 annual
100425 styrene   FINAL 1000 annual     2 20 annual
100447 benzyl chloride   FINAL         0.02 0.2 annual
101779 4,4'-methylene dianiline   FINAL         0.022 0.22 annual
103231 di (2-ethylhexyl) adipate   FINAL         3 30 annual
103333 azobenzene   FINAL         0.03 0.3 annual
107131 acrylonitrile   FINAL 2 annual     0.01 0.1 annual
100527 benzaldehyde   FINAL         0.4 4 annual
106467 1,4-dichlorobenzene   FINAL 800 annual     0.25 2.5 annual
106490 p-toluidine   FINAL 2 annual     0.03 0.3 annual
106923 allyl glycidyl ether   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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