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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 - 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
78842 isobutyraldehyde   FINAL 160 annual          
18395307 isobutyltrimethoxysilane   FINAL 200 annual          
115117 isobutylene   FINAL 110000 annual          
97869 isobutyl methacrylate   FINAL 600 annual          
97858 isobutyl isobutyrate   FINAL 300 annual          
78831 isobutyl alcohol   FINAL 1500 8 hr          
110190 isobutyl acetate 15 FINAL 2400 8 hr          
75285 isobutane 22 FINAL 23800 8 hr          
123513 isoamyl alcohol   FINAL 360 8 hr          
123922 isoamyl acetate   FINAL 2700 8 hr 5300 1 hr      
5888335 iso-bornyl acrylate   FINAL 14 annual          
15321616 iron oxalate   FINAL 0.1 annual          
7553562 iodine   FINAL 1 8 hr          
193395 Indeno(1,2,3-cd)pyrene 5 FINAL              
9016459 igepal co-630   FINAL 18 annual          
25584832 hydroxypropyl acrylate   FINAL 28 8 hr          
10096910 hydroxyphenylbenzotriazole   FINAL 0.1 annual          
34375285 hydroxymethylamino ethanol   FINAL 0.1 annual          
818611 hydroxyethyl acrylate   FINAL 1 annual          
79141 hydroxyacetic acid/ glycolic acid   FINAL 4 annual          
64742467 hydrotreated middle distillate 11 FINAL 50 8 hr          
64742558 hydrotreated light paraffinic distillate 11 FINAL 50 8 hr          
64742536 hydrotreated light naphthenic distillate 11 FINAL 50 8 hr          
64742490 hydrotreated light naphtha 1 FINAL 3500 8 hr          
64742478 hydrotreated light distillate 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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