Know Your Environment. Protect Your Health.

Cadmium

U.s.n., San Nicolas Island

Cadmium is a toxic metal found in food and drinking water. It has been linked to kidney toxicity, bone damage, cancer, and damage to developing fetuses.

 

13

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
20211.13 ppb32ND - 1.70 ppb
2022ND20ND
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.04 ppb

The EWG Health Guideline of 0.04 ppb for cadmium was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.

EPA Maximum Contaminant
Level (MCL): 5 ppb

The legal limit for cadmium, established in 1991, was based on research studies of cadmium toxicity conducted in the 1970s. This limit may not fully protect against the risk of cancer due to cadmium exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2018-04-03CA5610702_002_002-201804030530ND
2018-04-03CA5610702_001_001-201804030545ND
2019-04-09CA5610702_001_001-201904090425ND
2019-04-09CA5610702_002_002-201904090500ND
2020-04-14CA5610702_001_001-202004140530ND
2020-04-14CA5610702_002_002-202004140530ND
2021-04-06CA5610702_002_002-2021040606451.70 ppb
2021-04-06CA5610702_001_001-202104060630ND
2021-04-06CA5610702_002_002-2021040606451.70 ppb
2022-04-05CA5610702_002_002-202204050430ND
2022-04-05CA5610702_001_001-202204050400ND
2023-04-11CA5610702_001_001-202304110615ND
2023-04-11CA5610702_002_002-202304110645ND