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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
463581 carbonyl sulfide   FINAL 9 annual          
505486 suberic acid   FINAL 17 annual          
509148 tetranitromethane   FINAL 0.4 8 hr     0.000066 0.00066 annual
513359 amylene   FINAL 106 annual          
513371 dimethylvinyl chloride   FINAL         0.008 0.08 annual
513859 2,3-butanediol   FINAL 15 annual          
526738 1,2,3-trimethylbenzene 14 FINAL 185 annual 1200 8 hr      
526750 2,3-dimethyl phenol   FINAL 2 annual          
532274 alpha chloroacetophenone   FINAL 0.03 annual          
533744 dazomet   FINAL 19 annual          
534521 dinitro-o-cresol   FINAL 2 8 hr          
540498 1,2-dibromoethylene   FINAL 0.1 annual          
540590 1,2-dichloroethylene   FINAL 35 24 hr          
540841 2,2,4-Trimethyl Pentane 1 FINAL 3500 8 hr          
540885 tert-butyl acetate 15 FINAL 2400 8 hr          
540976 dodecamethylcyclohexasiloxane   FINAL 400 annual          
541026 decamethylcyclopentasiloxane   FINAL 200 annual          
541059 hexamethylcyclotrisiloxane   FINAL 50 annual          
541731 1,3-dichlorobenzene   FINAL 3 annual          
541855 ethyl amyl ketone   FINAL 220 annual          
542756 1,3-dichloropropene   FINAL 20 annual     0.2 2 annual
542881 bis(chloromethyl)ether   FINAL         0.000016 0.00016 annual
544252 1,3,5-cycloheptatriene   FINAL 0.18 annual          
546930 magnesium carbonate   FINAL 50 8 hr          
552454 alpha-chloro-ortho-xylene   FINAL 0.1 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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