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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 4 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
108883 toluene   FINAL 5000 24 hr          
1156190 tolazamide   FINAL 17 annual          
13463677 titanium dioxide   FINAL 24 8 hr          
7440326 Titanium   FINAL 24 8 hr          
7440315 tin   FINAL 20 8 hr          
137268 thiram   FINAL 18 annual          
64485821 thiazole ester   FINAL 17 annual          
7440280 thallium and thallium compounds   FINAL 0.1 annual 0.2 8 hr      
25265774 texanol   FINAL 55 annual          
6904661 tetraphenylhexamethyltetrasiloxane   FINAL 0.1 annual          
807283 tetraphenyldimethyldisiloxane   FINAL 0.1 annual          
3390612 tetraphenyldimethyl-2-phenylmethyltrisiloxane   FINAL 0.1 annual          
3982829 tetraphenyldimethyl-2-dimethyltrisiloxane   FINAL 0.1 annual          
509148 tetranitromethane   FINAL 0.4 8 hr     0.000066 0.00066 annual
75763 tetramethylsilane   FINAL 1300 annual          
2627954 tetramethyldivinyldisiloxane   FINAL 38 annual          
7691023 tetramethyldivinyldisila   FINAL 30 annual          
3277267 tetramethyldihydrogendisiloxane   FINAL 120 annual          
22407518 tetramethylchlorovinyldisiloxane   FINAL 0.1 annual          
632224 tetramethyl urea 13 FINAL 0.8 annual 230 24 hr      
9014851 tetramethyl decyndiol   FINAL 0.1 annual          
97994 tetrahydrofuryl methanol   FINAL 52 annual          
109999 tetrahydrofuran   FINAL 8000 annual          
116143 tetrafluoroethylene   FINAL         0.4 4 annual
10469097 tetrachloropicolinic acid   FINAL 21 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 [email protected] or (517) 582-3779.


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