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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
0 jet fuels 44 FINAL 200 annual 2000 8 hr      
62533 aniline   FINAL 1 annual 76 8 hr 0.6 6 annual
67721 hexachloroethane 13 FINAL 30 annual 1600 8 hr 0.1 1 annual
95636 1,2,4-trimethylbenzene 14 FINAL 185 annual 1200 8 hr      
91203 naphthalene   FINAL 3 annual 520 8 hr 0.08 0.8 annual
94757 2,4-D   FINAL 35 annual 100 8 hr      
107051 allyl chloride   FINAL 1 annual 31 8 hr      
108010 dimethylethanolamine   FINAL 5.2 annual 220 8 hr      
108907 chlorobenzene   FINAL 50 annual 4400 8 hr      
75718 dichlorodifluoromethane   FINAL 330 annual 49500 8 hr      
108678 1,3,5-trimethyl benzene 14 FINAL 185 annual 1200 8 hr      
121448 triethylamine   FINAL 7 annual 21 8 hr      
140885 ethyl acrylate   FINAL 120 annual 200 8 hr      
526738 1,2,3-trimethylbenzene 14 FINAL 185 annual 1200 8 hr      
584849 2,4-toluene diisocyanate 13 FINAL 0.07 annual 0.4 8 hr 0.03 0.3 annual
822060 hexamethylene diisocyanate   FINAL 0.2 annual 0.3 8 hr      
2921882 chlorpyrifos   FINAL 1 annual 1 8 hr      
2426086 n-butyl glycidyl ether   FINAL 300 1 hr 160 8 hr      
91087 2,6-toluene diisocyanate 13 FINAL 0.07 annual 0.4 8 hr 0.03 0.3 annual
7440280 thallium and thallium compounds   FINAL 0.1 annual 0.2 8 hr      
8020835 deodorized kerosene 44 FINAL 200 annual 2000 8 hr      
19430934 perfluorobutylethylene   FINAL 2600 annual 10000 8 hr      
26471625 toluene diisocyanate 13 FINAL 0.07 annual 0.4 8 hr 0.03 0.3 annual
7782505 chlorine 13 FINAL 0.3 annual 500 8 hr      
8008206 kerosene 44 FINAL 200 annual 2000 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 lehnerD@michigan.gov or (517) 582-3779.


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