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Nickel and Nickel Compounds

Acute REL (μg/m3)
0.2
Species
Mouse
Acute REL Toxicologic Endpoint
Depressed antibody response
Acute REL Target Organs
Immune system
8-Hour Inhalation REL (μg/m3)
0.06
Last 8-Hour REL Revision
2012
Chronic Inhalation REL (μg/m3)
0.014 (inhalation); 11 μg/kg BW-day (oral)
Chronic Target Organs
Inhalation: Respiratory system, hematologic system. Oral: Development
Human Data
No
Last Chronic REL Revision
2012
Chronic Reference Exposure Levels Comments

Inhalation concentrations as micrograms Ni/m3; oral dose as micrograms Ni/kg-day.
OEHHA 2012. Nickel Reference Exposure Levels. Listed as Nickel & nickel compounds (except nickel oxide for chronic inhalation exposures).

8-Hour Reference Exposure Levels Comments

Inhalation concentrations as micrograms Ni/m3.
OEHHA 2013. Technical Support Document for Noncancer RELs, Appendix D1. Updated July 2014. Listed as Nickel & nickel compounds.

Acute Reference Exposure Levels Comments

Inhalation concentrations as micrograms Ni/m3.
OEHHA 2012. Nickel Reference Exposure Levels.

Last Acute REL Revision
2012

Arsenic (inorganic)

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
July, 2014
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
July 2014
Severity
Severe
Last Acute REL Revision
July 2014