Trends in hexabromocyclododecanes in the UK and North America

Research output: Contribution to journalArticle

Standard

Trends in hexabromocyclododecanes in the UK and North America. / Yang, Congqiao; Abdallah, Mohamed Abou-Elwafa; Desborough, Jennifer; Burniston, Debbie; Tomy, Gregg; Harrad, Stuart; Marvin, Chris.

In: Science of the Total Environment, Vol. 658, 15.12.2018, p. 861-867.

Research output: Contribution to journalArticle

Harvard

APA

Vancouver

Author

Yang, Congqiao ; Abdallah, Mohamed Abou-Elwafa ; Desborough, Jennifer ; Burniston, Debbie ; Tomy, Gregg ; Harrad, Stuart ; Marvin, Chris. / Trends in hexabromocyclododecanes in the UK and North America. In: Science of the Total Environment. 2018 ; Vol. 658. pp. 861-867.

Bibtex

@article{0afbcfcc449949afbe66b2d790d9af2f,
title = "Trends in hexabromocyclododecanes in the UK and North America",
abstract = "Water samples (n = 107) taken from nine English freshwater lakes from a mix of urban, rural, and remote locations on 12 occasions between August 2008 and February 2012, and archived suspended sediment samples (n = 39) collected over the period 1980-2012 at the mouth of the Niagara River in Lake Ontario were analysed to assess the temporal trends in contamination by the three main hexabromocyclododecane (HBCD) diastereomers (α-, β-, and γ-HBCD). HBCDs (45 to 890 pg L-1, n = 107) were generally equally distributed between the operationally defined freely dissolved and particulate phases in English lake water. Concentrations of HBCDs declined over the sampling period with half-lives of 5.1 years in English water, with a significantly decreasing trend also observed for Niagara River suspended sediments (NRSSs). With respect to seasonal trends, significantly higher concentrations were found in colder compared to warmer periods at 5 out of 9 English lakes, while NRSSs in this study revealed no statistically significant seasonal trends. The maximum HBCD concentration in NRSSs was about 3 orders of magnitude lower than those detected in English lake water, which is plausible given the greater per capita use of HBCD in Europe than North America. While γ-HBCD was consistently dominant (35-86%; mean = 56%) in English lake water samples, and dominated in NRSSs collected prior to 2002 inclusive (13-100%, mean = 73%), the abundance of γ-HBCD was significantly lower (3.5-37%; mean = 23%) in NRSSs from 2003 onwards.",
keywords = "HBCD, suspended sediment, surface water, United Kingdom, North America",
author = "Congqiao Yang and Abdallah, {Mohamed Abou-Elwafa} and Jennifer Desborough and Debbie Burniston and Gregg Tomy and Stuart Harrad and Chris Marvin",
note = "Crown Copyright {\textcopyright} 2018. Published by Elsevier B.V. All rights reserved.",
year = "2018",
month = dec
day = "15",
doi = "10.1016/j.scitotenv.2018.12.229",
language = "English",
volume = "658",
pages = "861--867",
journal = "Science of the Total Environment",
issn = "0048-9697",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Trends in hexabromocyclododecanes in the UK and North America

AU - Yang, Congqiao

AU - Abdallah, Mohamed Abou-Elwafa

AU - Desborough, Jennifer

AU - Burniston, Debbie

AU - Tomy, Gregg

AU - Harrad, Stuart

AU - Marvin, Chris

N1 - Crown Copyright © 2018. Published by Elsevier B.V. All rights reserved.

PY - 2018/12/15

Y1 - 2018/12/15

N2 - Water samples (n = 107) taken from nine English freshwater lakes from a mix of urban, rural, and remote locations on 12 occasions between August 2008 and February 2012, and archived suspended sediment samples (n = 39) collected over the period 1980-2012 at the mouth of the Niagara River in Lake Ontario were analysed to assess the temporal trends in contamination by the three main hexabromocyclododecane (HBCD) diastereomers (α-, β-, and γ-HBCD). HBCDs (45 to 890 pg L-1, n = 107) were generally equally distributed between the operationally defined freely dissolved and particulate phases in English lake water. Concentrations of HBCDs declined over the sampling period with half-lives of 5.1 years in English water, with a significantly decreasing trend also observed for Niagara River suspended sediments (NRSSs). With respect to seasonal trends, significantly higher concentrations were found in colder compared to warmer periods at 5 out of 9 English lakes, while NRSSs in this study revealed no statistically significant seasonal trends. The maximum HBCD concentration in NRSSs was about 3 orders of magnitude lower than those detected in English lake water, which is plausible given the greater per capita use of HBCD in Europe than North America. While γ-HBCD was consistently dominant (35-86%; mean = 56%) in English lake water samples, and dominated in NRSSs collected prior to 2002 inclusive (13-100%, mean = 73%), the abundance of γ-HBCD was significantly lower (3.5-37%; mean = 23%) in NRSSs from 2003 onwards.

AB - Water samples (n = 107) taken from nine English freshwater lakes from a mix of urban, rural, and remote locations on 12 occasions between August 2008 and February 2012, and archived suspended sediment samples (n = 39) collected over the period 1980-2012 at the mouth of the Niagara River in Lake Ontario were analysed to assess the temporal trends in contamination by the three main hexabromocyclododecane (HBCD) diastereomers (α-, β-, and γ-HBCD). HBCDs (45 to 890 pg L-1, n = 107) were generally equally distributed between the operationally defined freely dissolved and particulate phases in English lake water. Concentrations of HBCDs declined over the sampling period with half-lives of 5.1 years in English water, with a significantly decreasing trend also observed for Niagara River suspended sediments (NRSSs). With respect to seasonal trends, significantly higher concentrations were found in colder compared to warmer periods at 5 out of 9 English lakes, while NRSSs in this study revealed no statistically significant seasonal trends. The maximum HBCD concentration in NRSSs was about 3 orders of magnitude lower than those detected in English lake water, which is plausible given the greater per capita use of HBCD in Europe than North America. While γ-HBCD was consistently dominant (35-86%; mean = 56%) in English lake water samples, and dominated in NRSSs collected prior to 2002 inclusive (13-100%, mean = 73%), the abundance of γ-HBCD was significantly lower (3.5-37%; mean = 23%) in NRSSs from 2003 onwards.

KW - HBCD

KW - suspended sediment

KW - surface water

KW - United Kingdom

KW - North America

U2 - 10.1016/j.scitotenv.2018.12.229

DO - 10.1016/j.scitotenv.2018.12.229

M3 - Article

C2 - 30583182

VL - 658

SP - 861

EP - 867

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

ER -