Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Molybdenum

Portland Water District - Greater Portland

Molybdenum is a metal that occurs naturally in soil, minerals and water. People who ingest large amounts can have increased levels of uric acid and gout-like symptoms.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND80ND
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 40 ppb

The EWG Health Guideline of 40 ppb for molybdenum was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against metabolic changes and excess formation of uric acid in the blood.

ppb = parts per billion

All test results

Date Lab ID Result
2013-02-12201302130202AMND
2013-02-12201302130199AMND
2013-05-14201305150173AMND
2013-05-14201305150189AMND
2013-08-13201308140251AMND
2013-08-13201308140249AMND
2013-11-13201311140719AMND
2013-11-13201311140721AMND