US drinking water quality: exposure risk profiles for seven legacy and emerging contaminants

Details

• Alternative Title:
  J Expo Sci Environ Epidemiol
• Personal Author:
  Levin, Ronnie ; Villanueva, Cristina M. ; Beene, Daniel ; Cradock, Angie L. ; Donat-Vargas, Carolina ; Lewis, Johnnye ; Martinez-Morata, Irene ; Minovi, Darya ; Nigra, Anne E. ; Olson, Erik D. ; Schaider, Laurel A. ; Ward, Mary H. ; Deziel, Nicole C.
• Description:
  BACKGROUND:
  
  Advances in drinking water infrastructure and treatment throughout the 20th and early 21st century dramatically improved water reliability and quality in the United States (US) and other parts of the world. However, numerous chemical contaminants from a range of anthropogenic and natural sources continue to pose chronic health concerns, even in countries with established drinking water regulations, such as the US.
  
  OBJECTIVE/METHODS:
  
  In this review, we summarize exposure risk profiles and health effects for seven legacy and emerging drinking water contaminants or contaminant groups: arsenic, disinfection by-products, fracking-related substances, lead, nitrate, per- and polyfluorinated alkyl substances (PFAS) and uranium. We begin with an overview of US public water systems, and US and global drinking water regulation. We end with a summary of cross-cutting challenges that burden US drinking water systems: aging and deteriorated water infrastructure, vulnerabilities for children in school and childcare facilities, climate change, disparities in access to safe and reliable drinking water, uneven enforcement of drinking water standards, inadequate health assessments, large numbers of chemicals within a class, a preponderance of small water systems, and issues facing US Indigenous communities.
  
  RESULTS:
  
  Research and data on US drinking water contamination show that exposure profiles, health risks, and water quality reliability issues vary widely across populations, geographically and by contaminant. Factors include water source, local and regional features, aging water infrastructure, industrial or commercial activities, and social determinants. Understanding the risk profiles of different drinking water contaminants is necessary for anticipating local and general problems, ascertaining the state of drinking water resources, and developing mitigation strategies.
  
  IMPACT STATEMENT:
  
  Drinking water contamination is widespread, even in the US. Exposure risk profiles vary by contaminant. Understanding the risk profiles of different drinking water contaminants is necessary for anticipating local and general public health problems, ascertaining the state of drinking water resources, and developing mitigation strategies.
  
  
• Subjects:
  Aging Arsenic Child Drinking Water Humans Reproducibility Of Results Water Quality
• Keywords:
  Drinking Water Environmental Disparities Exposure Risk Profiles Social Determinants Water Contaminants Water Infrastructure
• Source:
  J Expo Sci Environ Epidemiol. 34(1):3-22
• Pubmed ID:
  37739995
• Pubmed Central ID:
  PMC10907308
• Document Type:
  Journal Article
• Funding:
  P42 ES025589/ES/NIEHS NIH HHSUnited States/ ; U48 DP006376/DP/NCCDPHP CDC HHSUnited States/ ; UH3 OD023344/OD/NIH HHSUnited States/ ; P42 ES033815/ES/NIEHS NIH HHSUnited States/ ; R01 ES028311/ES/NIEHS NIH HHSUnited States/ ; UG3 OD023344/OD/NIH HHSUnited States/ ; P42 ES027706/ES/NIEHS NIH HHSUnited States/ ; P30 ES009089/ES/NIEHS NIH HHSUnited States/ ; UL1 TR001863/TR/NCATS NIH HHSUnited States/ ; P50 MD015706/MD/NIMHD NIH HHSUnited States/ ; P42 ES033719/ES/NIEHS NIH HHSUnited States/ ; DP5 OD031849/OD/NIH HHSUnited States/
• Volume:
  34
• Issue:
  1
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha-512:55f9e2169abc10aa55bfeeb2bc03ec594e4dec39822c5426a4d59f6085ca603886a760cd6faed5b81c28a0ac324192cae454a64bbe3862dcb0c83b76b903f715
• Download URL:
  https://stacks.cdc.gov/view/cdc/175599/cdc_175599_DS1.pdf
• File Type:
  [PDF - 615.67 KB ]