Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Sandra Mejia Avendaño"'
Publikováno v:
Environmental Science & Technology. 54:1513-1521
Zwitterionic, cationic, and anionic per- and polyfluoroalkyl substances (PFASs) are identified in aqueous film-forming foam (AFFF) concentrates and AFFF-impacted sites. However, the mobility potential of zwitterionic and cationic PFASs is poorly unde
Autor:
Sandra Mejia-Avendaño, Gabriel Munoz, Sébastien Sauvé, Jinxia Liu, Mélanie Desrosiers, Sung Vo Duy, Paul Benoı̂t
Publikováno v:
Environmental Science & Technology. 51:8313-8323
The derailment of an unmanned train carrying crude oil and subsequent fire in the town of Lac-Mégantic, Quebec, led to the use of 33 000 L of aqueous film forming foam (AFFF) concentrate. While it is known that per- and polyfluoroalkyl substances (P
Publikováno v:
Analytical Chemistry. 89:2539-2546
Sites impacted by the use of aqueous film-forming foams (AFFFs) present elevated concentrations of perfluoroalkyl and polyfluoroalkyl substances (PFAS). The characterization of the PFAS contamination at such sites may be greatly complicated by the pr
Publikováno v:
Environmental Science & Technology. 50:9923-9932
The aerobic biotransformation over 180 days of two cationic quaternary ammonium compounds (QACs) with perfluoroalkyl chains was determined in soil microcosms, and biotransformation pathways were proposed. This is the first time that polyfluoroalkyl c
Autor:
Jinxia Liu, Sandra Mejia-Avendaño, Yuan Yao, Carl E. Brown, Gabriel Munoz, Sung Vo Duy, Déborah Martin, Sébastien Sauvé, Konstantin Volchek
Publikováno v:
Talanta. 195
The total oxidizable precursor (TOP) assay can be useful for integrating precursors to perfluoroalkyl acids (pre-PFAAs) into the assessment of sites contaminated by per- and polyfluoroalkyl substances (PFAS). Current research gaps include risks of in
Publikováno v:
The Science of the total environment. 651(Pt 1)
As an important reservoir of pollutants, soil may play a critical role in altering isomer ratios of perfluorooctane sulfonate (PFOS) or PFOS precursors (PrePFOS) via microbial processes, but this possibility has not yet been investigated, as well as
Autor:
Gabriel Munoz, Sandra Mejia-Avendaño, Jinxia Liu, Sébastien Sauvé, Sung Vo Duy, Dat Tien Do, Prisca Ray
Publikováno v:
Analytica chimica acta. 1034
The comprehensive analysis of aqueous film forming foam (AFFF) formulations has led in recent years to the discovery of novel classes of perfluoroalkyl and polyfluoroalkyl substances (PFASs). Whether the pre-existing analytical methods for historical
Autor:
Sandra Mejia Avendaño, Jinxia Liu
Publikováno v:
Environment International, Vol 61, Iss, Pp 98-114 (2013)
Polyfluoroalkyl chemicals containing perfluoroalkyl moieties have been widely used in numerous industrial and commercial applications. Many polyfluoroalkyl chemicals are potential perfluoroalkyl acid (PFAA) precursors. When they are released to the e
Production of PFOS from aerobic soil biotransformation of two perfluoroalkyl sulfonamide derivatives
Autor:
Sandra Mejia Avendaño, Jinxia Liu
Publikováno v:
Chemosphere. 119
The continuous production and use in certain parts of the world of perfluoroalkyl sulfonamide derivatives that can degrade to perfluorooctane sulfonic acid (PFOS) has called for better understanding of the environmental fate of these PFOS precursors.
Publikováno v:
Chemosphere. 138:1037-1038