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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 - 1274 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          
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          
67630 isopropyl alcohol   FINAL 220 annual          
75014 vinyl chloride   FINAL 100 annual     0.11 1.1 annual
75058 acetonitrile   FINAL 200 annual          
75070 acetaldehyde   FINAL 9 annual     0.5 5 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          
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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