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Uranium

CAS Number

7440-61-1

Synonym

Uranium-238; Uranium metal

Occurrence/Use

Nuclear power fuel; armor-piercing ammunition; x-ray targets; radiation shielding material; counterbalance weights; nuclear weapons. Naturally-occurring uranium is often present in phosphate fertilizers. Formerly used in glass and ceramic glazes, until 1973.

Cancer Potency Information

Latest Criteria: 
California Public Health Goals

Proposition 65

Chemical Status

Reproductive Toxicity: 
Considered, but not listed

Public notices related to this chemical: 

Meetings: 

Water

California Public Health Goals Data

Health Risk Category: 
Carcinogenicity
Public Health Goal (mg/L): 
0.43 pCi/L
Public Health Goal - Download: 
Cancer Risk at PHG: 
0.000001
MCL value (mg/L): 
20 pCi/L
Cancer Risk at MCL: 
0.00005
Last PHG Revision : 
2001
California PHG Comments: 

PHG = 0.43 pCi/L, 0.5 ppb, or 0.0005 mg/L at specific activity of 0.79 pCi/ug
CA MCL = 20 pCi/L or 0.025 mg/L at specific activity of 0.79 pCi/ug, based on kidney toxicity to adults.

OEHHA 2013. Health Risk Information for Public Health Goal Exceedance Reports