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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 1 of 51 - 1271 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
999973 hexamethyldisilazane   FINAL 206 annual          
99978 n,n-dimethyl-p-toluidine   FINAL 28 annual          
99876 p-isopropyltoluene   FINAL 10 annual          
996350 dimethylisopropylamine   FINAL 200 annual          
994058 tertiary amyl methyl ether   FINAL 62 24 hr          
993077 trimethylsilane   FINAL 340 annual          
992949 methylsilane   FINAL 30 24 hr          
98967556 n-(2,6-difluorophenyl)-7-methyl-1h-1,2,4-triazolo(1,5a)pyrimidine-2-su   FINAL 0.1 annual          
98967409 flumetsulam   FINAL 26 annual          
98953 nitrobenzene   FINAL 9 annual     0.025 0.25 annual
98862 acetophenone   FINAL 490 8 hr          
98840 dl-alpha phenylethylamine   FINAL 3 annual          
98839 alpha-methyl styrene   FINAL 230 annual          
98828 cumene   FINAL 400 annual     0.1 1 annual
98566 p-chlorobenzotrifluoride   FINAL 70 annual          
98516304 propanol, 1(or 2) ethoxy, acetate isoparaffinic petroleum hydrocarbon   FINAL 0.1 annual          
98293 t-butylcatechol   FINAL 9 annual          
98179 m-trifluoromethylphenol   FINAL 0.08 annual          
98135 phenyltrichlorosilane   FINAL 0.1 annual          
981340 betamethasone 11   FINAL 17 annual          
98066 tert-butylbenzene   FINAL 10 annual          
98011 furfural   FINAL         0.06 0.6 annual
98000 furfuryl alcohol   FINAL 5 annual     0.09 0.9 annual
97994 tetrahydrofuryl methanol   FINAL 52 annual          
97950 2-ethyl butanol   FINAL 40 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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