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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
75092 methylene chloride 13 FINAL 2000 annual 14000 1 hr 60 600 annual
1163195 decabromodiphenyl oxide   FINAL 25 24 hr     5 50 annual
127184 tetrachloroethylene 13 FINAL 40 annual 1400 24 hr 4 40 annual
78591 isophorone   FINAL 280 1 hr     3.7 37 annual
103231 di (2-ethylhexyl) adipate   FINAL         3 30 annual
96297 methylethylketoxime   FINAL         2.5 25 annual
100425 styrene   FINAL 1000 annual     2 20 annual
8006619 gasoline   FINAL         2 20 annual
108781 melamine   FINAL         1.5 15 annual
106887 1,2-butylene oxide   FINAL 20 annual     1.2 12 annual
106945 propyl bromide   FINAL 32 24 hr     1.1 11 annual
90437 o-phenylphenol   FINAL         1.1 11 annual
128370 2,6-di-tert-butyl-p-cresol   FINAL         1 10 annual
75252 bromoform   FINAL         0.9 9 annual
106898 epichlorohydrin   FINAL 1 annual     0.8 8 annual
14807966 talc   FINAL         0.8 8 annual
87627 2,6-xylidine   FINAL         0.78 7.8 annual
57018527 propylene glycol tert-butyl ether   FINAL         0.7 7 annual
117817 diethyl hexyl phthalate   FINAL 70 annual     0.61 6.1 annual
62533 aniline   FINAL 1 annual 76 8 hr 0.6 6 annual
149304 2-mercaptobenzothiazole   FINAL         0.54 5.4 annual
75070 acetaldehyde   FINAL 9 annual     0.5 5 annual
92524 biphenyl   FINAL 13 8 hr     0.43 4.3 annual
67663 chloroform   FINAL         0.4 4 annual
86748 carbazole   FINAL         0.4 4 annual
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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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