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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 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
64186 formic acid   FINAL 2 annual          
64675 diethyl sulfate   FINAL 1 annual          
66251 hexanaldehyde   FINAL 2 annual          
67630 isopropyl alcohol   FINAL 220 annual          
67685 dimethylsulfoxide   FINAL 20 annual          
67721 hexachloroethane 13 FINAL 30 annual 1600 8 hr 0.1 1 annual
68122 N,N-dimethylformamide   FINAL 30 annual          
71363 n-butanol   FINAL 350 annual          
71410 amyl alcohol   FINAL 120 annual          
71432 benzene   FINAL 30 annual 30 24 hr 0.1 1 annual
74839 methyl bromide   FINAL 5 annual          
74851 ethylene   FINAL 6240 annual          
74873 methyl chloride 21 FINAL 90 annual          
75014 vinyl chloride   FINAL 100 annual     0.11 1.1 annual
75092 methylene chloride 13 FINAL 2000 annual 14000 1 hr 60 600 annual
75127 formamide   FINAL 600 annual     0.2 2 annual
75150 carbon disulfide   FINAL 700 annual          
75183 dimethylsulfide   FINAL 7 annual          
75058 acetonitrile   FINAL 200 annual          
75070 acetaldehyde   FINAL 9 annual     0.5 5 annual
75343 1,1-dichloroethane   FINAL 500 annual          
75354 vinylidene chloride (1,1-dichloroethylene)   FINAL 7.3 annual     0.15 1.5 annual
75365 acetyl chloride   FINAL 0.1 annual          
75376 1,1-difluoroethane   FINAL 400000 annual          
75387 vinylidene fluoride   FINAL 30 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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