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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 - 1269 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
7446119 sulfur trioxide 9,13 FINAL 1 annual 120 1 hr      
7664939 sulfuric acid 9,13 FINAL 1 annual 120 1 hr      
8014957 oleum 9,13 FINAL 1 annual 120 1 hr      
6192525 p-toluenesulfonic acid monohydrate 9 13 FINAL 1.9 annual 230 1 hr      
104154 p-toluenesulfonic acid 9 13 FINAL 1.8 annual 210 1 hr      
1336363 polychlorinated biphenyls 8 FINAL         0.01 0.1 annual
7439976 mercury and mercury compounds 7 FINAL 0.3 annual 1 24 hr      
12070121 tungsten carbide 6 FINAL 50 8 hr          
8052424 asphalt fumes 5 FINAL             annual
207089 Benzo(k)fluoranthene 5 FINAL             annual
3697243 5-methylchrysene 5 FINAL             annual
189559 dibenzo(a,i)pyrene 5 FINAL             annual
189640 dibenzo(a,h)pyrene 5 FINAL             annual
218019 chrysene 5 FINAL             annual
191300 dibenzo(a,l)pyrene 5 FINAL             annual
192654 dibenzo(a,e)pyrene 5 FINAL             annual
193395 Indeno(1,2,3-cd)pyrene 5 FINAL              
205823 benzo(j)fluoranthene 5 FINAL             annual
205992 Benzo(b)fluoranthene 5 FINAL             annual
50328 benzo(a)pyrene 5 FINAL 0.002 24 hr     0.001 0.01 annual
53703 dibenz(a,h)anthracene 5 FINAL             annual
56495 3-methylcholanthrene 5 FINAL              
56553 benz(a)anthracene 5 FINAL             annual
57976 7,12-dimethylbenz(a)anthracene 5 FINAL              
0 jet fuels 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.
http://www.michigan.gov/documents/deq/deq-aqd-itslirsl-notes_457666_7.pdf  

 
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For issues related to ITSL/IRSL database content, contact Doreen Lehner at lehnerD@michigan.gov or (517) 284-6753.


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