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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
106490 p-toluidine   FINAL 2 annual     0.03 0.3 annual
584849 2,4-toluene diisocyanate 13 FINAL 0.07 annual 0.4 8 hr 0.03 0.3 annual
91087 2,6-toluene diisocyanate 13 FINAL 0.07 annual 0.4 8 hr 0.03 0.3 annual
91178 decahydronaphthalene   FINAL         0.03 0.3 annual
103333 azobenzene   FINAL         0.03 0.3 annual
26471625 toluene diisocyanate 13 FINAL 0.07 annual 0.4 8 hr 0.03 0.3 annual
63449398 chlorinated paraffins   FINAL         0.03 0.3 annual
68410991 paroil 45   FINAL         0.03 0.3 annual
563473 3-chloro-2-methylpropene   FINAL         0.03 0.3 annual
98953 nitrobenzene   FINAL 9 annual     0.025 0.25 annual
101779 4,4'-methylene dianiline   FINAL         0.022 0.22 annual
100447 benzyl chloride   FINAL         0.02 0.2 annual
79345 1,1,2,2-tetrachloroethane   FINAL         0.02 0.2 annual
78795 isoprene   FINAL         0.02 0.2 annual
107131 acrylonitrile   FINAL 2 annual     0.01 0.1 annual
96457 ethylene thiourea   FINAL 0.28 annual     0.01 0.1 annual
50293 ddt 12 FINAL         0.01 0.1 annual
57749 chlordane (technical)   FINAL 0.7 annual     0.01 0.1 annual
72548 DDD (TDE) 12 FINAL         0.01 0.1 annual
72559 DDE, p,p'- 12 FINAL         0.01 0.1 annual
1336363 polychlorinated biphenyls 8 FINAL         0.01 0.1 annual
12789036 chlordane (technical)   FINAL 0.7 annual     0.01 0.1 annual
87865 pentachlorophenol   FINAL 20 annual     0.009 0.09 annual
121142 2,4-dinitrotoluene   FINAL 2 8 hr     0.009 0.09 annual
60344 methyl hydrazine   FINAL 0.03 annual     0.0087 0.087 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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