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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 5 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
8006642 turpentine 18 FINAL 1120 8 hr          
628637 n-amyl acetate   FINAL 1100 annual          
624419 2-methyl butyl acetate   FINAL 1100 annual          
0 amyl acetate (mixture)   FINAL 1100 annual          
100414 ethylbenzene   FINAL 1000 24 hr     0.4 4 annual
100425 styrene   FINAL 1000 annual     2 20 annual
108112 methyl amyl alcohol   FINAL 1000 8 hr          
120127 anthracene   FINAL 1000 annual          
1067250 propyltrimethoxysilane   FINAL 1000 annual          
26062793 polydimethyl diallyl ammonium chloride   FINAL 1000 annual          
88917220 dipropylene glycol methyl ether acetate   FINAL 930 annual          
108032 1-nitropropane   FINAL 900 8 hr          
78104 ethyl silicate   FINAL 850 8 hr          
108101 methyl isobutyl ketone   FINAL 820 8 hr          
108941 cyclohexanone   FINAL 800 8 hr          
149735 trimethylorthoformate   FINAL 800 annual          
590863 isovaleraldehyde   FINAL 800 annual          
106467 1,4-dichlorobenzene   FINAL 800 annual     0.25 2.5 annual
29911282 dipropylene glycol monobutyl ether   FINAL 800 24 hr          
121437 trimethoxyborine 40 FINAL 770 1 hr          
115106 dimethyl ether   FINAL 740 annual 1900 24 hr      
34590948 dipropylene glycol methyl ether   FINAL 720 annual          
1336216 ammonium hydroxide 39 FINAL 720 1 hr          
756796 dimethyl methyl phosphonate   FINAL 700 annual          
110543 n-hexane   FINAL 700 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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