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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 24 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
64741635 naphtha, light catalytic reformed   FINAL 100 annual          
64741646 naphtha, full range alkylate 1 FINAL 3500 8 hr          
64741657 heavy alkylate naphtha 1 FINAL 3500 8 hr          
64741668 light alkylate naphtha   FINAL 138 annual          
64741680 heavy catalytic reformed naphtha   FINAL 70 annual          
64741793 petroleum coke 26 FINAL              
64741817 distillates (petroleum), heavy thermal cracked   FINAL 15 annual          
64741828 distillates (petroleum), light thermal cracked 24 FINAL 93 annual          
64741839 naphtha, heavy thermal cracked 25 FINAL 5600 annual          
64741862 sweetened middle distillate 1 FINAL 2 annual          
64741884 solvent refined heavy paraffnic distillate 11 FINAL 50 8 hr          
64741895 distillates (petroleum) solvent-refined light paraffinic 11 FINAL 50 8 hr          
64742069 extracts (petroleum), middle distillate solvent   FINAL 2 annual          
64742149 petroleum distillates, acid treated 44 FINAL 200 annual 2000 8 hr      
64742309 distillates (petroleum), chemically neutralized middle 1 FINAL 2 annual          
64742310 chemically neutralized light distillates 44 FINAL 200 annual 2000 8 hr      
64742467 hydrotreated middle distillate 11 FINAL 50 8 hr          
64742478 hydrotreated light distillate 44 FINAL 200 annual 2000 8 hr      
64742489 hydrotreated heavy napht 1 FINAL 3500 8 hr          
64742490 hydrotreated light naphtha 1 FINAL 3500 8 hr          
64742525 hydrotreated heavy naphthenic distillate 11 FINAL 50 8 hr          
64742536 hydrotreated light naphthenic distillate 11 FINAL 50 8 hr          
64742547 hydrotreated heavy paraffinic mineral oil 11 FINAL 50 8 hr          
64742558 hydrotreated light paraffinic distillate 11 FINAL 50 8 hr          
64742627 residual oils (petroleum) solvent-dewaxed 11 FINAL 50 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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