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High-resolution temporal wastewater treatment plant investigation to understand influent mass flux of per- and polyfluoroalkyl substances (PFAS) by Drew Szabo; Jaye Marchiandi; Subharthe Samandra; Julia M. Johnston; Raoul A. Mulder; Mark P. Green; Bradley O. Clarke is a Environmental Science article available to read on EtoBox.
What is High-resolution temporal wastewater treatment plant investigation to understand influent mass flux of per- and polyfluoroalkyl substances (PFAS) about?
This study aims to identify sources of per- and polyfluoroalkyl substances (PFAS) to wastewater treatment plants (WWTPs) and reveals previously undescribed variability in daily PFAS concentrations by measuring their occurrence in WWTP influent each hour over the course of a week. ∑50PFAS concentrations ranged between 89 ± 38 on Monday and 173 ± 110 ng L-1 on Friday, where perfluoroalkyl carboxylic acids (PFCAs), disubstituted phosphate esters (diPAPs), and perfluoroalkyl sulfonic acids (PFSAs) contributed the largest proportion to overall weekly concentrations 37%, 30%, and 17% respectively. Simultaneous pulse events of perfluorooctanesulfonic acid (PFOS; 400 ng L-1) and perfluoroheptanesulfonic acid (PFHpS; 18 ng L-1) indicate significant industrial or commercial waste discharge that persists for up to 3 h. The minimum number of hourly grab samples required to detect variation of PFOS and PFHpS concentrations are 7 and 9 samples respectively, indicating a high degree of variability in PFAS concentrations between days. Overall, the risk of sampling bias from grab samples is high given the variability in PFAS concentrations and more frequent sampling campaigns must be balanced again
Who reads High-resolution temporal wastewater treatment plant investigation to understand influent mass flux of per- and polyfluoroalkyl substances (PFAS)?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Drew Szabo; Jaye Marchiandi; Subharthe Samandra; Julia M. Johnston; Raoul A. Mulder; Mark P. Green; Bradley O. Clarke
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Environmental Science (Physical Sciences)