Perfluoroalkyl substances and brominated flame retardants in landfill-related air, soil, and groundwater from Ireland

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Perfluoroalkyl substances and brominated flame retardants in landfill-related air, soil, and groundwater from Ireland. / Harrad, Stuart; Drage, Daniel; Sharkey, Martin; Berresheim, Harald.

In: Science of the Total Environment, Vol. 705, 135834, 25.02.2020.

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@article{01d473374a7f4542a3b572d1319c3bda,
title = "Perfluoroalkyl substances and brominated flame retardants in landfill-related air, soil, and groundwater from Ireland",
abstract = "Between November 2018 and January 2019, samples of air and soil were collected from locations downwind and upwind of 10 landfills across the Republic of Ireland. Samples of groundwater (n = 10) were also collected from locations with links traceable to the studied landfills. Concentrations of perfluoroalkyl substances (PFASs), polybrominated diphenyl ethers (PBDEs), hexabromocyclodecane (HBCDD), and decabromodiphenyl ethane (DBDPE) determined in air and soil samples were not significantly different (p > 0.05) between downwind and upwind locations. The arithmetic mean concentration of PFOA in groundwater sourced from landfills (n = 4) that were not fully lined (69 ng/L) exceeded that in groundwater samples sourced from lined landfills (n = 6; 4.1 ng/L), with the difference, however being not statistically significant (p > 0.1). A positive correlation (p = 0.014) was observed between concentrations of PFOA in groundwater in our study and those reported previously in leachate from the same landfills. However, this correlation was driven substantially by one landfill which displayed the highest concentrations in both groundwater and leachate and no significant correlation (p > 0.1) was observed between log-transformed concentrations of PFOA in groundwater and leachate. DBDPE was detected in groundwater for the first time anywhere, in all samples at concentrations (median = 9.4 ng/L; arithmetic mean = 78 ng/L) that exceeded those of any other BFRs or PFASs targeted in this study. This likely reflects its recent use as a “drop-in” replacement for the recently restricted Decabromodiphenyl ether product. Overall, our data suggest that the 10 landfills studied do not exert a discernible influence on local air and soil concentrations of BFRs and PFASs. In contrast, while not of immediate concern, our data suggest that further more detailed study of the impact of landfill emissions on concentrations of DBDPE and PFOA is advisable.",
keywords = "Air, BFRs, DBDPE, Groundwater, Landfill, PFASs, Soil",
author = "Stuart Harrad and Daniel Drage and Martin Sharkey and Harald Berresheim",
year = "2020",
month = feb,
day = "25",
doi = "10.1016/j.scitotenv.2019.135834",
language = "English",
volume = "705",
journal = "Science of the Total Environment",
issn = "0048-9697",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Perfluoroalkyl substances and brominated flame retardants in landfill-related air, soil, and groundwater from Ireland

AU - Harrad, Stuart

AU - Drage, Daniel

AU - Sharkey, Martin

AU - Berresheim, Harald

PY - 2020/2/25

Y1 - 2020/2/25

N2 - Between November 2018 and January 2019, samples of air and soil were collected from locations downwind and upwind of 10 landfills across the Republic of Ireland. Samples of groundwater (n = 10) were also collected from locations with links traceable to the studied landfills. Concentrations of perfluoroalkyl substances (PFASs), polybrominated diphenyl ethers (PBDEs), hexabromocyclodecane (HBCDD), and decabromodiphenyl ethane (DBDPE) determined in air and soil samples were not significantly different (p > 0.05) between downwind and upwind locations. The arithmetic mean concentration of PFOA in groundwater sourced from landfills (n = 4) that were not fully lined (69 ng/L) exceeded that in groundwater samples sourced from lined landfills (n = 6; 4.1 ng/L), with the difference, however being not statistically significant (p > 0.1). A positive correlation (p = 0.014) was observed between concentrations of PFOA in groundwater in our study and those reported previously in leachate from the same landfills. However, this correlation was driven substantially by one landfill which displayed the highest concentrations in both groundwater and leachate and no significant correlation (p > 0.1) was observed between log-transformed concentrations of PFOA in groundwater and leachate. DBDPE was detected in groundwater for the first time anywhere, in all samples at concentrations (median = 9.4 ng/L; arithmetic mean = 78 ng/L) that exceeded those of any other BFRs or PFASs targeted in this study. This likely reflects its recent use as a “drop-in” replacement for the recently restricted Decabromodiphenyl ether product. Overall, our data suggest that the 10 landfills studied do not exert a discernible influence on local air and soil concentrations of BFRs and PFASs. In contrast, while not of immediate concern, our data suggest that further more detailed study of the impact of landfill emissions on concentrations of DBDPE and PFOA is advisable.

AB - Between November 2018 and January 2019, samples of air and soil were collected from locations downwind and upwind of 10 landfills across the Republic of Ireland. Samples of groundwater (n = 10) were also collected from locations with links traceable to the studied landfills. Concentrations of perfluoroalkyl substances (PFASs), polybrominated diphenyl ethers (PBDEs), hexabromocyclodecane (HBCDD), and decabromodiphenyl ethane (DBDPE) determined in air and soil samples were not significantly different (p > 0.05) between downwind and upwind locations. The arithmetic mean concentration of PFOA in groundwater sourced from landfills (n = 4) that were not fully lined (69 ng/L) exceeded that in groundwater samples sourced from lined landfills (n = 6; 4.1 ng/L), with the difference, however being not statistically significant (p > 0.1). A positive correlation (p = 0.014) was observed between concentrations of PFOA in groundwater in our study and those reported previously in leachate from the same landfills. However, this correlation was driven substantially by one landfill which displayed the highest concentrations in both groundwater and leachate and no significant correlation (p > 0.1) was observed between log-transformed concentrations of PFOA in groundwater and leachate. DBDPE was detected in groundwater for the first time anywhere, in all samples at concentrations (median = 9.4 ng/L; arithmetic mean = 78 ng/L) that exceeded those of any other BFRs or PFASs targeted in this study. This likely reflects its recent use as a “drop-in” replacement for the recently restricted Decabromodiphenyl ether product. Overall, our data suggest that the 10 landfills studied do not exert a discernible influence on local air and soil concentrations of BFRs and PFASs. In contrast, while not of immediate concern, our data suggest that further more detailed study of the impact of landfill emissions on concentrations of DBDPE and PFOA is advisable.

KW - Air

KW - BFRs

KW - DBDPE

KW - Groundwater

KW - Landfill

KW - PFASs

KW - Soil

UR - http://www.scopus.com/inward/record.url?scp=85076244242&partnerID=8YFLogxK

U2 - 10.1016/j.scitotenv.2019.135834

DO - 10.1016/j.scitotenv.2019.135834

M3 - Article

VL - 705

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

M1 - 135834

ER -