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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 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
335671 perfluorooctanoic acid (pfoa) 37 FINAL 0.07 24 hr          
1066359 dimethylchlorosilane 36 FINAL 52 annual 5400 1 hr      
4109960 dichlorosilane 36 FINAL 28 annual 2900 1 hr      
10026047 silicon tetrachloride 36 FINAL 20 annual 2000 1 hr      
38436167 perfluorobutylethylmethyldichlorosilane 36 FINAL 2 annual          
7440393 barium and soluble barium compounds 35 FINAL 5 8 hr          
10102188 sodium selenite 34 FINAL 2 8 hr          
13410010 selenic acid 34 FINAL 2 8 hr          
7446084 selenium dioxide 34 FINAL 2 8 hr          
7782492 selenium and inorganic selenium compounds 34 FINAL 2 8 hr          
7488564 selenium disulfide 34 FINAL 2 8 hr          
7783008 selenious acid 34 FINAL 2 8 hr          
1746016 2,3,7,8-tetrachlorodibenzo(p)dioxin 33 FINAL 0.000002 annual     0.000000023 0.00000023 annual
7723140 phosphorus 32 FINAL 20 24 hr          
14464461 silica cristobalite 31 FINAL 3 annual          
1317959 silica tripoli 31 FINAL 3 annual          
14808607 silica quartz 31 FINAL 3 annual          
15468323 silica tridymite 31 FINAL 3 annual          
1319773 cresol (mixed isomers) 30 FINAL 100 8 hr          
108394 3-methylphenol 30 FINAL 100 8 hr          
95487 o-cresol 30 FINAL 100 8 hr          
95749 3-chloro-p-toluidine 30 FINAL 2 annual          
106445 p-cresol 30 FINAL 100 8 hr          
62737 dichlorvos 3 FINAL 0.5 annual          
593602 vinyl bromide 3 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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