Ecology Publications & Forms
Chemicals of Emerging Concern in Pretreated Industrial Wastewater in Northwestern Washington State: Screening Study Results, 2021
Chemicals of Emerging Concern in Pretreated Industrial Wastewater in Northwestern Washington State: Screening Study Results, 2021 (Number of pages: 54) (Publication Size: 4856KB)
|Description||The Department of Ecology conducted a screening level study to assess the presence and magnitudes of various chemicals of concern (CECs) and other under-regulated chemicals in pretreated industrial wastewater being received by wastewater treatment plants in the Puget Sound region. We sampled nine facilities, representing seven different industry types, once during January–April 2021.
Parameters of interest included polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), per- and polyfluoroalkyl substances (PFAS), organophosphate flame retardants (OPFRs), bisphenols, alkylphenols, and semivolatile organic compounds (SVOCs).
Wide ranges in CEC concentrations were found in samples from the nine facilities.
Sample concentrations ranged as follows:
• Total PCB: 64–168,000 pg/L
• Total PBDE: 29–3,490,000 pg/L
• Total PFAS: 4–9,840 ng/L
• Total OPFR: 35–29,800,000 ng/L
• Total bisphenol: 225–36,500 ng/L
• Total alkylphenol: non-detect to 2,430,000 ng/L
Overall, the study demonstrated that the various CECs have the potential to be present in industrial wastewater, sometimes at high concentrations.
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|Contact||Siana Wong at 360-407-6764 or firstname.lastname@example.org|
|Keywords||CECs, pretreatment, chemicals of concern, toxics monitoring, industrial wastewater|
|DATA||Environmental Information Management (EIM) #SWON0002
Quality Assurance Project Plan: Sampling of Pretreated Industrial Wastewater in Northwestern Washington State
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