J 2017

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

WANG, Zhanyun, Justin M. BOUCHER, Martin SCHERINGER, Ian T. COUSINS, Konrad HUNGERBUHLER et. al.

Základní údaje

Originální název

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

Autoři

WANG, Zhanyun (756 Švýcarsko), Justin M. BOUCHER (756 Švýcarsko), Martin SCHERINGER (756 Švýcarsko, garant, domácí), Ian T. COUSINS (752 Švédsko) a Konrad HUNGERBUHLER (756 Švýcarsko)

Vydání

ENVIRONMENTAL SCIENCE AND TECHNOLOGY, WASHINGTON, AMER CHEMICAL SOC, 2017, 0013-936X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10511 Environmental sciences

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 6.653

Kód RIV

RIV/00216224:14310/17:00100157

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000399859700038

Klíčová slova anglicky

PERSISTENT ORGANIC POLLUTANTS; LONG-RANGE TRANSPORT; FLUOROTELOMER-BASED POLYMERS; POLYFLUOROALKYL SUBSTANCES; PERFLUOROOCTANE SULFONATE; PERFLUOROALKYL SUBSTANCES; PERFLUORINATED COMPOUNDS

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 12. 4. 2018 16:09, Ing. Nicole Zrilić

Anotace

V originále

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.

Návaznosti

EF15_003/0000469, projekt VaV
Název: Cetocoen Plus
LM2015051, projekt VaV
Název: Centrum pro výzkum toxických látek v prostředí (Akronym: RECETOX RI)
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Výzkumná infrastruktura RECETOX