SWCAA Pollutant Details

75-56-9: PROPYLENE OXIDE

  • EPOXYPROPANE
  • METHYL ETHYLENE OXIDE
  • OXIRANE, 2-METHYL

IUPAC: 2-methyloxirane
InChi Key: GOOHAUXETOMSMM-UHFFFAOYSA-N WEB


HAP:   YES
VOC:   YES
Criteria Pollutant:   NO
Particulate:   NO
Trace Element:   NO
98 ECY TAP:   YES
09 ECY TAP:   YES
19 ECY TAP:   YES
Chemical Formula:   CH3CHCH2O
Element Count:   C3 H6 O
Molecular Weight:   58.079 g/mol
GHG-EPA:   NO
GHG-WA state:   NO
CO2 Equivalent:  
PM Precursor:   NO
Ozone (O3) Precursor:   YES
Ozone Depleting:  
Ozone Depletion Potential:  
Lifetime in Years:  
Marijuana Pollutant:   NO
ECY PBT:  
SWCAA TAP Category:  
EPA HAP Category:    
EPA HAP Group Category:  
EPA NEI Pollutant Code:   75569
EPA SRS ID:   5660  Web
EPA ATW FACT SHEET:   Web
EPA NEI COMPOUND ID:   E761346
EPA Banned Substance:   NO
EPCRA 313 PBT:  
EPA Urban HAP:   NO
     

Boiling Point:   93.2 / 33.89 F/C
Melting Point:   -169.6 / -112.22 F/C
Specific Gravity:   0.8304
Vapor Pressure:   538 mmHg@77F (25C)
Henry's Law Constant:   0.0000834 atm-cu m/mole@25C (77F)
Convert ppm to mg/m3:   2.375
Log Pow:   0.03

Regulated Under These Programs

NIOSH OSHA ACGIH OEHHA
EPA IRIS ATSDR EPA ATW TSCA 2019
CAL TOXIC NEW JERSEY TRI 2014 DFG

SWCAA / WAC 173-460 (1998) TOXIC LIMITS
ASIL SQER TAP
Class
24hr ug/m3 Annual ug/m3 lbs/yr lbs/hr
0.27 50 None  A
WAC 173-460 (2009) TOXIC LIMITS
 
ASIL ug/m3 SQER lbs/ Deminimus lbs/ Average Period
0.27  51.8  2.59  ANNUAL 

WAC 173-460 (2019) TOXIC LIMITS
 
ASIL ug/m3 SQER lbs/ Deminimus lbs/ Average Period
0.27  44  2.2  ANNUAL 
IRIS EPA Integrated Risk Information System (IRIS) Web
IRIS INH REF CONC (non cancer):  0.03  mg/m3
IRIS URF (cancer):  0.0000037  per ug/m3
  0.270270270270  ug/m3
IRIS WOE Cancer Class:  B-Likely to be Carcinogenic to Humans

Oregon Department of Environmental Quality Web
Ambient Benchmark Concentration:  
New Jersey Department of Health Web
Right To Know Code: 1615 Web 

Idaho Occupational Exposure Limits (OEL) Web
IDAHO DEQ Type:  Non-Carcinogenic  
IDAHO OEL (non-cancer):  48  mg/m3
IDAHO ACC (non-cancer):  2.4  mg/m3
IDAHO DEQ Emission Level:  3.2  lb/hr
IDAHO DEQ URF (cancer):   per ug/m3
IDAHO AACC (cancer):   ug/m3
Texas Effects Screening Levels (ESL) Web
Short Term ESL:  70  ug/m3
Basis:  Health  
 
Long Term ESL:  7  ug/m3
Basis:  Health  

ACGIH Threshold Limit Values (TLV) Web
2008 ACGIH TLV TWA:  4.8  mg/m3
2008 ACGIH STEL:   
2008 ACGIH Carcinogen Class:  A3  
ATSDR Minimal Risk Levels (MRL) Web
ATSDR GMMC AIR:   mg/m3
 ATSDR Chronic MRL:  
 ATSDR Acute MRL:  
 ATSDR Interrim MRL:  
 ATSDR Carcinogenicity Class:  

NIOSH Recommended Exposure Limits (REL) Web
NIOSH RTECS No:  TZ2975000  
NIOSH ICSC No:  0192  Web
NIOSH REL TWA:  0  ppm
NIOSH STEL:   
NIOSH IDLH:  960  mg/m3
OEHHA Category Group Ref Exposure Levels (REL) Web
OEHHA Acute REL:  3100  ug/m3
OEHHA Chronic REL:  30  ug/m3
OEHHA URF (cancer):  0.0000037  per ug/m3
  0.270270270270  ug/m3

OSHA Permissible Exposure Limits (PEL) Web
OSHA PEL TWA:   mg/m3
OSHA STEL:   
DFG German Research Foundation (MAK) Web
Carcinogen and Mutagen Categories:
DFG MAK:  2  cancer
DFG BAT:   mutagen

DISCLAIMER: The SWCAA Pollutants Detail Page reports values from other authorized sources such as IRIS or NIOSH. These sources are frequently updated with the results of more current studies. To ensure you have the most current values please visit the appropriate agency Website.

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