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Isopropyl Alcohol

Acute REL (μg/m3)
3200
Species
Human
Acute REL Toxicologic Endpoint
Respiratory and eye irritation
Acute REL Target Organs
Respiratory system, eyes
Chronic Inhalation REL (μg/m3)
7000
Chronic Target Organs
Kidney, development
Human Data
No
Last Chronic REL Revision
2000
Chronic Reference Exposure Levels Comments

OEHHA 2008. Technical Supporting Document for Noncancer RELs, Appendix D3

 

Acute Reference Exposure Levels Comments

OEHHA 2008. Technical Supporting Document for Noncancer RELs, Appendix D2.

Severity
Mild
Last Acute REL Revision
1999

Methanol

Acute REL (μg/m3)
28000
Species
Human
Acute REL Toxicologic Endpoint
Impairment in performance of tasks
Acute REL Target Organs
Central nervous system
Chronic Inhalation REL (μg/m3)
4000
Chronic Target Organs
Development
Human Data
No
Last Chronic REL Revision
2000
Chronic Reference Exposure Levels Comments

OEHHA 2008. Technical Supporting Document for Noncancer RELs, Appendix D3

 

Acute Reference Exposure Levels Comments

OEHHA 2008. Technical Supporting Document for Noncancer RELs, Appendix D2.

Severity
Mild
Last Acute REL Revision
1999

Propylene Oxide

Acute REL (μg/m3)
3100
Species
Mouse
Acute REL Toxicologic Endpoint
Reproductive/ development (reduced fertility and teratogenic effects in rats), respiratory and eye irritation
Acute REL Target Organs
Reproductive/ development, respiratory system, eyes
Chronic Inhalation REL (μg/m3)
30
Chronic Target Organs
Respiratory system
Human Data
No
Last Chronic REL Revision
2000
Chronic Reference Exposure Levels Comments

OEHHA 2008. Technical Supporting Document for Noncancer RELs, Appendix D3

 

Acute Reference Exposure Levels Comments

OEHHA 2008. Technical Supporting Document for Noncancer RELs, Appendix D2.

Severity
Severe
Last Acute REL Revision
1999

Carbon Monoxide

Acute REL (μg/m3)
23000
Species
Human
Acute REL Toxicologic Endpoint
Cardiovascular system
Acute REL Target Organs
Cardiovascular system
Acute Reference Exposure Levels Comments

*Because angina is a severe effect, there is no level protective against mild adverse effects.
Reference Exposure Level (level protective against severe adverse effects): 20 ppm (23 mg/m3)
https://oehha.ca.gov/media/downloads/crnr/acutea-c-1.pdf

OEHHA 2008. Technical Supporting Document for Noncancer RELs, Appendix D2.

Severity
Mild*
Last Acute REL Revision
1999

Arsine

Acute REL (μg/m3)
0.2
Species
Mouse
Acute REL Toxicologic Endpoint
Reproductive/ development (decreased fetal weight); altered brain structure and funtion
Acute REL Target Organs
Reproductive/ development, cardiovascular system, nervous system
8-Hour Inhalation REL (μg/m3)
0.015
Last 8-Hour REL Revision
2008
Chronic Inhalation REL (μg/m3)
0.015 (inhalation); 0.0035 μg/kg BW-day (oral)
Chronic Target Organs
Reproductive/ development; cardiovascular system; nervous system; lung; skin
Human Data
Yes
Last Chronic REL Revision
2008
Chronic Reference Exposure Levels Comments

OEHHA 2008. Technical Supporting Document for Noncancer RELs, Appendix D1. Updated July 2014.

8-Hour Reference Exposure Levels Comments

OEHHA 2013. Technical Support Document for Noncancer RELs, Appendix D1. Updated July 2014.

Acute Reference Exposure Levels Comments

OEHHA 2008. Technical Supporting Document for Noncancer RELs, Appendix D1. Updated July 2014.

Severity
Severe
Last Acute REL Revision
2008
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