Wastewater treatment plants as chemical observatories to forecast ecological and human health risks of manmade chemicals

Arjun K. Venkatesan, Rolf Halden

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

Thousands of chemicals have been identified as contaminants of emerging concern (CECs), but prioritizing them concerning ecological and human health risks is challenging. We explored the use of sewage treatment plants as chemical observatories to conveniently identify persistent and bioaccumulative CECs, including toxic organohalides. Nationally representative samples of sewage sludge (biosolids) were analyzed for 231 CECs, of which 123 were detected. Ten of the top 11 most abundant CECs in biosolids were found to be high-production volume chemicals, eight of which representing priority chemicals, including three flame retardants, three surfactants and two antimicrobials. A comparison of chemicals detected in nationally representative biological specimens from humans and municipal biosolids revealed 70% overlap. This observed co-occurrence of contaminants in both matrices suggests that the analysis of sewage sludge can inform human health risk assessments by providing current information on toxic exposures in human populations and associated body burdens of harmful environmental pollutants.

Original languageEnglish (US)
Article number3731
JournalScientific Reports
Volume4
DOIs
StatePublished - Jan 16 2014

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Waste Water
Sewage
Health
Poisons
Flame Retardants
Body Burden
Environmental Pollutants
Surface-Active Agents
Population

ASJC Scopus subject areas

  • General

Cite this

Wastewater treatment plants as chemical observatories to forecast ecological and human health risks of manmade chemicals. / Venkatesan, Arjun K.; Halden, Rolf.

In: Scientific Reports, Vol. 4, 3731, 16.01.2014.

Research output: Contribution to journalArticle

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