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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 23 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
64742547 hydrotreated heavy paraffinic mineral oil 11 FINAL 50 8 hr          
64742525 hydrotreated heavy naphthenic distillate 11 FINAL 50 8 hr          
64742489 hydrotreated heavy napht 1 FINAL 3500 8 hr          
123319 hydroquinone   FINAL 140 annual     0.058 0.58 annual
7783064 hydrogen sulfide   FINAL 10 annual 100 24 hr      
7722841 hydrogen peroxide   FINAL 14 8 hr          
7664393 hydrogen fluoride 13 FINAL 14 annual 240 1 hr      
7647010 hydrogen chloride 13 FINAL 20 annual 2100 1 hr      
10035106 hydrogen bromide   FINAL 70 1 hr          
64742809 hydrodesulfurized middle distillate   FINAL 2 annual          
64742810 hydrodesulfurized kerosene 44 FINAL 200 annual 2000 8 hr      
50033 hydrocortisone acetate   FINAL 15 annual          
68956569 hydrocarbons, terpene processing by-products   FINAL 0.1 annual          
10034932 hydrazine sulfate   FINAL         0.0008 0.008 annual
302012 hydrazine   FINAL         0.0002 0.002 annual
63148629 high molecular wt. silicon   FINAL 2 annual          
70131678 high molecular wt. silicon   FINAL 0.1 annual          
69430246 high molecular wt. silicon   FINAL 30 annual          
68083192 high molecular wt. silicon   FINAL 0.1 annual          
68037581 high molecular wt. silicon   FINAL 0.1 annual          
68918229 high molecular wt. silicon   FINAL 0.1 annual          
68037887 high molecular weight sili   FINAL 0.1 annual          
68410979 high benzene naphtha hydrotreated c6-c8 fraction   FINAL 30 annual 30 24 hr 0.1 1 annual
431890 hfc-227ea 13 FINAL 130000 annual 5560000 1 hr      
107415 hexylene glycol   FINAL 1210 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.
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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