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@article{1409702,
author = {Wang, Zhanyun and Boucher, Justin M. and Scheringer, Martin and Cousins, Ian T. and Hungerbuhler, Konrad},
article_location = {WASHINGTON},
article_number = {8},
doi = {http://dx.doi.org/10.1021/acs.est.6b06191},
keywords = {PERSISTENT ORGANIC POLLUTANTS; LONG-RANGE TRANSPORT; FLUOROTELOMER-BASED POLYMERS; POLYFLUOROALKYL SUBSTANCES; PERFLUOROOCTANE SULFONATE; PERFLUOROALKYL SUBSTANCES; PERFLUORINATED COMPOUNDS},
language = {eng},
issn = {0013-936X},
journal = {ENVIRONMENTAL SCIENCE AND TECHNOLOGY},
title = {Toward a Comprehensive Global Emission Inventory of C-4-C-10 Perfluoroalkanesulfonic Acids (PFSAs) and Related Precursors: Focus on the Life Cycle of C-8-Based Products and Ongoing Industrial Transition},
url = {https://pubs.acs.org/doi/10.1021/acs.est.6b06191},
volume = {51},
year = {2017}
}
TY - JOUR
ID - 1409702
AU - Wang, Zhanyun - Boucher, Justin M. - Scheringer, Martin - Cousins, Ian T. - Hungerbuhler, Konrad
PY - 2017
TI - Toward a Comprehensive Global Emission Inventory of C-4-C-10 Perfluoroalkanesulfonic Acids (PFSAs) and Related Precursors: Focus on the Life Cycle of C-8-Based Products and Ongoing Industrial Transition
JF - ENVIRONMENTAL SCIENCE AND TECHNOLOGY
VL - 51
IS - 8
SP - 4482-4493
EP - 4482-4493
PB - AMER CHEMICAL SOC
SN - 0013936X
KW - PERSISTENT ORGANIC POLLUTANTS
KW - LONG-RANGE TRANSPORT
KW - FLUOROTELOMER-BASED POLYMERS
KW - POLYFLUOROALKYL SUBSTANCES
KW - PERFLUOROOCTANE SULFONATE
KW - PERFLUOROALKYL SUBSTANCES
KW - PERFLUORINATED COMPOUNDS
UR - https://pubs.acs.org/doi/10.1021/acs.est.6b06191
L2 - https://pubs.acs.org/doi/10.1021/acs.est.6b06191
N2 - Here a new global emission inventory of C-4-C-10 perfluoroalkanesulfonic acids (PFSAs) from the life cycle of perfluorooctanesulfonyl fluoride (POSF)-based products in 1958-2030 is presented. In particular, we substantially improve and expand the previous frameworks by incorporating missing pieces (e.g., emissions to soil through land treatment, overlooked precursors) and updating parameters (e.g., emission factors, degradation half-lives). In 1958-2015, total direct and indirect emissions of perfluorooctanesulfonic acid (PFOS) are estimated as 1228-4930 tonnes, and emissions of PFOS precursors are estimated as 1230-8738 tonnes and approximately 670 tonnes for x-perfluorooctanesulfonamides/sulfonamido ethanols (xFOSA/Es) and POSF, respectively. Most of these emissions occurred between 1958 and 2002, followed by a substantial decrease. This confirms the positive effect of the ongoing transition to phase out POSF-based products, although this transition may still require substantial time and cause substantial additional releases of PFOS (8-153 tonnes) and xFOSA/Es (4-698 tonnes) in 2016 to 2030. The modeled environmental concentrations obtained by coupling the emission inventory and a global multimedia mass-balance model generally agree well with reported field measurements, suggesting that the inventory captures the actual emissions of PFOS and xFOSA/Es for the time being despite remaining uncertainties. "Our analysis of the key uncertainties and open questions of and beyond the inventory shows that, among others, degradation of side-chain fluorinated polymers in the environment and landfills can be a long-term, (potentially) substantial source of PFOS.
ER -
WANG, Zhanyun, Justin M. BOUCHER, Martin SCHERINGER, Ian T. COUSINS a Konrad HUNGERBUHLER. Toward a Comprehensive Global Emission Inventory of C-4-C-10 Perfluoroalkanesulfonic Acids (PFSAs) and Related Precursors: Focus on the Life Cycle of C-8-Based Products and Ongoing Industrial Transition. Online. \textit{ENVIRONMENTAL SCIENCE AND TECHNOLOGY}. WASHINGTON: AMER CHEMICAL SOC, 2017, roč.~51, č.~8, s.~4482-4493. ISSN~0013-936X. Dostupné z: https://dx.doi.org/10.1021/acs.est.6b06191. [citováno 2024-04-24]
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