SWCAA Pollutant Details

95-47-6: XYLENE, o-

  • 1,2-DIMETHYL BENZENE
  • DIMETHYL BENZENE, 1,2-
  • o-XYLENE

IUPAC: 1,2-xylene
InChi Key: CTQNGGLPUBDAKN-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:   C6H4(CH3)2
Element Count:   C8 H10
Molecular Weight:   106.165 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:   XYLENES (m-, o-, p- isomers)
EPA HAP Category:   XYLENES (mixed isomers) 
EPA HAP Group Category:  
EPA NEI Pollutant Code:   95476
EPA SRS ID:   16139  Web
EPA ATW FACT SHEET:   Web
EPA NEI COMPOUND ID:   E761346
EPA Banned Substance:   NO
EPCRA 313 PBT:  
EPA Urban HAP:   NO
     

Boiling Point:   289 / 142.78 F/C
Melting Point:   -13.36 / -25.00 F/C
Specific Gravity:   0.88
Vapor Pressure:   6.65 mmHg@77F (25C)
Henry's Law Constant:   0.00535 atm-cu m/mole@25C (77F)
Convert ppm to mg/m3:   4.342
Log Pow:   3.12

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
1500 43,748 5.0  B
WAC 173-460 (2009) TOXIC LIMITS
 
ASIL ug/m3 SQER lbs/ Deminimus lbs/ Average Period
221  1.21  0.0605  24 HR 

WAC 173-460 (2019) TOXIC LIMITS
 
ASIL ug/m3 SQER lbs/ Deminimus lbs/ Average Period
220  16  0.82  24 HR 
IRIS EPA Integrated Risk Information System (IRIS) Web
IRIS INH REF CONC (non cancer):   
IRIS URF (cancer):   per ug/m3
   
IRIS WOE Cancer Class:  D-Inadequate Information to Assess Carcinogenic Potential

Oregon Department of Environmental Quality Web
Ambient Benchmark Concentration:  
New Jersey Department of Health Web
Right To Know Code: 2903 Web 

Idaho Occupational Exposure Limits (OEL) Web
IDAHO DEQ Type:   
IDAHO OEL (non-cancer):   mg/m3
IDAHO ACC (non-cancer):   mg/m3
IDAHO DEQ Emission Level:   lb/hr
IDAHO DEQ URF (cancer):   per ug/m3
IDAHO AACC (cancer):   ug/m3
Texas Effects Screening Levels (ESL) Web
Short Term ESL:  1600  ug/m3
Basis:  Odor  
 
Long Term ESL:  180  ug/m3
Basis:  Health  

ACGIH Threshold Limit Values (TLV) Web
2008 ACGIH TLV TWA:  435  mg/m3
2008 ACGIH STEL:  655  mg/m3
2008 ACGIH Carcinogen Class:  A4  
ATSDR Minimal Risk Levels (MRL) Web
ATSDR GMMC AIR:  0.02086913  mg/m3
 ATSDR Chronic MRL:  
 ATSDR Acute MRL:  
 ATSDR Interrim MRL:  
 ATSDR Carcinogenicity Class: 3  

NIOSH Recommended Exposure Limits (REL) Web
NIOSH RTECS No:  ZE2450000  
NIOSH ICSC No:  0084  Web
NIOSH REL TWA:  435  mg/m3
NIOSH STEL:  655  mg/m3
NIOSH IDLH:  3915  mg/m3
OEHHA Category Group Ref Exposure Levels (REL) Web
OEHHA Acute REL:  22000  ug/m3
OEHHA Chronic REL:  700  ug/m3
OEHHA URF (cancer):   per 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:   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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