Early chemical and toxicological risk characterization of
inorganic constituents in surface water from the Canadian oil
sands first large-scale end pit lake

J 2018

Early chemical and toxicological risk characterization of inorganic constituents in surface water from the Canadian oil sands first large-scale end pit lake

WHITE, Kevin Bradley a Karsten LIBER

Základní údaje

Originální název

Early chemical and toxicological risk characterization of inorganic constituents in surface water from the Canadian oil sands first large-scale end pit lake

Autoři

WHITE, Kevin Bradley (124 Kanada, garant, domácí) a Karsten LIBER (124 Kanada)

Vydání

Chemosphere, OXFORD, PERGAMON-ELSEVIER SCIENCE LTD, 2018, 0045-6535

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10511 Environmental sciences

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 5.108

Kód RIV

RIV/00216224:14310/18:00106151

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1016/j.chemosphere.2018.07.059

UT WoS

000446149600081

Klíčová slova anglicky

Oil sands; End pit lakes; Salinity; Metals; Aquatic toxicity

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 10. 2. 2019 21:56, Mgr. Michaela Hylsová, Ph.D.

Anotace

V originále

End pit lakes (EPLs) have been proposed as a method for the long-term reclamation of process water and fluid fine tailings (FFT) produced from surface mining within the Canadian oil sands. These waste products contain elevated concentrations of dissolved organics, metals, and salts which reduce surface water quality and are toxic to aquatic organisms. This study measured the concentrations of inorganic constituents in surface water from the industry's first large-scale EPL over the course of a three-year period (2014-2016). The toxicological risk was subsequently assessed to identify constituents of concern that may impair surface water quality necessary for the development of a functional aquatic ecosystem or for release to the surrounding environment. Changes in surface water concentrations over the three-year period were strongly correlated with hydrological processes occurring within the lake: advective-diffusive chemical influx from FFT pore water to the overlying surface water was offset by efflux via continuous manual pumping (freshwater in, process water out). These processes resulted in a net dilution effect of approximately 5-10% per year, however, a significant chemical mass is expected to persist within the underlying FFT. Elevated salinity (as Na+, Cl- HCO3-) and concentrations of boron and nickel were predicted to pose very high toxicological risk to aquatic organisms. Despite these risks, the discovery of wild Daphnia pulex in the August 2016 sample suggested that surface water quality was sufficient to support populations of certain salt-tolerant zooplankton and primary producers. However, the time required for development into a robust aquatic ecosystem remains unknown.

Citovat

WHITE, Kevin Bradley a Karsten LIBER. Early chemical and toxicological risk characterization of inorganic constituents in surface water from the Canadian oil sands first large-scale end pit lake. Chemosphere. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD, 2018, roč. 211, November, s. 745-757. ISSN 0045-6535. Dostupné z: https://dx.doi.org/10.1016/j.chemosphere.2018.07.059.

@article{1495636,
   author = {White, Kevin Bradley and Liber, Karsten},
   article_location = {OXFORD},
   article_number = {November},
   doi = {http://dx.doi.org/10.1016/j.chemosphere.2018.07.059},
   keywords = {Oil sands; End pit lakes; Salinity; Metals; Aquatic toxicity},
   language = {eng},
   issn = {0045-6535},
   journal = {Chemosphere},
   title = {Early chemical and toxicological risk characterization of inorganic constituents in surface water from the Canadian oil sands first large-scale end pit lake},
   url = {https://www.sciencedirect.com/science/article/pii/S0045653518313171?via%3Dihub},
   volume = {211},
   year = {2018}
}

TY  - JOUR
ID  - 1495636
AU  - White, Kevin Bradley - Liber, Karsten
PY  - 2018
TI  - Early chemical and toxicological risk characterization of inorganic constituents in surface water from the Canadian oil sands first large-scale end pit lake
JF  - Chemosphere
VL  - 211
IS  - November
SP  - 745-757
EP  - 745-757
PB  - PERGAMON-ELSEVIER SCIENCE LTD
SN  - 00456535
KW  - Oil sands
KW  - End pit lakes
KW  - Salinity
KW  - Metals
KW  - Aquatic toxicity
UR  - https://www.sciencedirect.com/science/article/pii/S0045653518313171?via%3Dihub
L2  - https://www.sciencedirect.com/science/article/pii/S0045653518313171?via%3Dihub
N2  - End pit lakes (EPLs) have been proposed as a method for the long-term reclamation of process water and fluid fine tailings (FFT) produced from surface mining within the Canadian oil sands. These waste products contain elevated concentrations of dissolved organics, metals, and salts which reduce surface water quality and are toxic to aquatic organisms. This study measured the concentrations of inorganic constituents in surface water from the industry's first large-scale EPL over the course of a three-year period (2014-2016). The toxicological risk was subsequently assessed to identify constituents of concern that may impair surface water quality necessary for the development of a functional aquatic ecosystem or for release to the surrounding environment. Changes in surface water concentrations over the three-year period were strongly correlated with hydrological processes occurring within the lake: advective-diffusive chemical influx from FFT pore water to the overlying surface water was offset by efflux via continuous manual pumping (freshwater in, process water out). These processes resulted in a net dilution effect of approximately 5-10% per year, however, a significant chemical mass is expected to persist within the underlying FFT. Elevated salinity (as Na+, Cl- HCO3-) and concentrations of boron and nickel were predicted to pose very high toxicological risk to aquatic organisms. Despite these risks, the discovery of wild Daphnia pulex in the August 2016 sample suggested that surface water quality was sufficient to support populations of certain salt-tolerant zooplankton and primary producers. However, the time required for development into a robust aquatic ecosystem remains unknown.
ER  -

WHITE, Kevin Bradley a Karsten LIBER. Early chemical and toxicological risk characterization of inorganic constituents in surface water from the Canadian oil sands first large-scale end pit lake. \textit{Chemosphere}. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD, 2018, roč.~211, November, s.~745-757. ISSN~0045-6535. Dostupné z: https://dx.doi.org/10.1016/j.chemosphere.2018.07.059.

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