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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 22 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
208968 acenaphthylene   FINAL 35 annual          
218019 chrysene 5 FINAL             annual
280579 triethylenediamine   FINAL 6 annual          
287923 cyclopentane   FINAL 17200 8 hr          
298146 Potassium bicarbonate 26 FINAL              
300572 allyl benzene   FINAL 5 annual          
302012 hydrazine   FINAL         0.0002 0.002 annual
302227 chlormadinone acetate   FINAL 0.1 annual          
303811 novobiocin   FINAL 40 annual          
309002 aldrin   FINAL         0.0002 0.002 annual
313064 estradiol cypionate   FINAL 0.1 annual          
319846 alpha-hexachlorocyclohexane   FINAL         0.0006 0.006 annual
330541 diuron   FINAL 7 annual          
335671 perfluorooctanoic acid (pfoa) 37 FINAL 0.07 24 hr          
338987 isoflupredone acetate   FINAL 0.01 annual          
353504 carbonyl fluoride   FINAL 54 8 hr          
358678 trifluoropropylmethyl dimethoxysilane   FINAL 100 annual          
359079 2-bromo-1,1- difluoro ethane   FINAL 0.1 annual          
363519 2-chloro-6-fluorobenzenamine   FINAL 0.1 annual          
363724 pentafluorobenzene   FINAL 10 annual          
366187 2,2'-bipyridyl   FINAL 0.8 annual          
382218 perfluoroisobutylene   FINAL 0.8 1 hr          
385002 2,6-difluorobenzoic acid   FINAL 0.1 annual          
431038 diacetyl   FINAL 0.2 8 hr          
431890 hfc-227ea 13 FINAL 130000 annual 5560000 1 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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