J 2021

Temporal trends in radiometrically dated sediment cores from English lakes show polybrominated diphenyl ethers correlate with brominated but not mixed bromo/chloro dioxins and furans

PETERS, Leon I.; Neil L. ROSE; Handong YANG; Jana KLÁNOVÁ; Thomas MOEHRING et al.

Základní údaje

Originální název

Temporal trends in radiometrically dated sediment cores from English lakes show polybrominated diphenyl ethers correlate with brominated but not mixed bromo/chloro dioxins and furans

Autoři

PETERS, Leon I.; Neil L. ROSE; Handong YANG; Jana KLÁNOVÁ; Thomas MOEHRING a Stuart John HARRAD

Vydání

Science of the Total Environment, Amsterdam, Elsevier Science, 2021, 0048-9697

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10511 Environmental sciences

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 10.754

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/21:00122040

Organizační jednotka

Přírodovědecká fakulta

EID Scopus

Klíčová slova anglicky

PBDD/Fs; PXDD/Fs; PBDEs; Time trends; Sources; Lakes

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 6. 6. 2025 09:37, Mgr. Michaela Hylsová, Ph.D.

Anotace

V originále

This paper reports concentrations between similar to 1950 and present, of polybrominated diphenyl ethers (PBDEs) and polybrominated dibenzo-p-dioxins and furans (PBDD/Fs), in radiometrically-dated sediment cores from three English lakes. Mixed bromo/chloro dibenzo-p-dioxins and furans (PXDD/Fs) were measured in two of the same lakes. Concentrations of PXDD/Fs decreased over time to the present. To our knowledge, this is the first report of temporal trends of PXDD/Fs in the environment. In contrast, concentrations of PBDEs increased towards the present and were significantly correlated (R = 0.88-0.98; p < 0.05) with concentrations of PBDFs in all three lakes. These observations suggest that the sources of PXDD/Fs are not related to PBDEs and differ from those of PBDFs. We also report for the first time the presence of octabromodibenzofuran (OBDF) in the two most recent core slices at one lake. The source of OBDF in these samples is unclear. While OBDF has been reported previously as a significant contaminant of some commercial formulations of Deca-BDE, it is also present in Octa-BDE products and in emissions from a variety of combustion activities. Overall, while the positive correlation between PBDEs and PBDFs suggests increased use of PBDEs has contributed substantially to environmental contamination with PBDFs; examination of PBDF homologue patterns implies emissions from combustion activities are likely also important.

Návaznosti

90121, velká výzkumná infrastruktura
Název: RECETOX RI