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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 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
591764 2-methylhexane   FINAL 3500 8 hr          
142825 heptane   FINAL 3500 8 hr          
96140 3-methylpentane   FINAL 3500 8 hr          
79298 2,3-dimethylbutane   FINAL 3500 8 hr          
8032324 VM & P naphtha 1 FINAL 3500 8 hr          
8052413 stoddard solvent 1 FINAL 3500 8 hr          
64742489 hydrotreated heavy napht 1 FINAL 3500 8 hr          
64742490 hydrotreated light naphtha 1 FINAL 3500 8 hr          
64742887 solvent naphtha medium aliphatic 1 FINAL 3500 8 hr          
64742898 solvent naphtha light aliphatic 1 FINAL 3500 8 hr          
64741419 naphtha heavy straight run 1 FINAL 3500 8 hr          
64741646 naphtha, full range alkylate 1 FINAL 3500 8 hr          
64741657 heavy alkylate naphtha 1 FINAL 3500 8 hr          
64475850 mineral spirits 1 FINAL 3500 8 hr          
68551177 heavy naphtha 1 FINAL 3500 8 hr          
141786 ethyl acetate   FINAL 3200 annual          
109944 ethyl formate   FINAL 3000 8 hr          
78922 sec-butyl alcohol   FINAL 3000 8 hr          
1634044 methyl t-butyl ether   FINAL 3000 annual          
84662 diethyl phthalate   FINAL 2800 annual          
123922 isoamyl acetate   FINAL 2700 8 hr 5300 1 hr      
26952216 isooctanol   FINAL 2700 8 hr          
19430934 perfluorobutylethylene   FINAL 2600 annual 10000 8 hr      
626380 2-pentyl acetate   FINAL 2600 8 hr          
71238 n-propyl alcohol   FINAL 2500 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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