Source apportionment of polycyclic aromatic hydrocarbons (PAHs) in small craft harbor (SCH) surficial sediments in Nova Scotia, Canada

E. Davis; Tony R. Walker; Michelle Adams; Rob Willis; Gary A. Norris; Ronald C. Henry

doi:10.1016/j.scitotenv.2019.07.114

Source apportionment of polycyclic aromatic hydrocarbons (PAHs) in small craft harbor (SCH) surficial sediments in Nova Scotia, Canada

E. Davis, Tony R. Walker, Michelle Adams, Rob Willis, Gary A. Norris, Ronald C. Henry

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

104 Citas (Scopus)

Resumen

Multiple source apportionment approaches were employed to investigate PAH sources which contribute to small craft harbor (SCH) sediments in Nova Scotia (NS), Canada. A total of 580 sediment samples were analyzed using PAH diagnostic ratios, Unmix Optimum receptor modeling, and by assessment of the composition of the PAH profile. PAH diagnostic ratios suggest PAHs are primarily of pyrogenic (thermal) origin, while UnmixO modeling identifies four individual sources which best describe surficial sediments and suggests contributions from both pyrogenic and petrogenic origins. These include coal combustion, automobile exhaust, and biomass incineration. PAH profile assessment determined an overwhelming contribution of high molecular weight PAHs, which exhibited a strong correlation with total PAH concentrations.

Idioma original	English
Páginas (desde-hasta)	528-537
Número de páginas	10
Publicación	Science of the Total Environment
Volumen	691
DOI	https://doi.org/10.1016/j.scitotenv.2019.07.114
Estado	Published - nov. 15 2019

Nota bibliográfica

Funding Information:
This study was made possible by data kindly supplied by DFO-SCH and PSPC. Funding was provided by the province of Nova Scotia (NS Graduate Scholarship), the School for Resource and Environmental Studies, Dalhousie University, and NSERC Discovery Grant RGPIN-2018-04119 to T.R.W. The views expressed in this article are those of the authors and do not necessarily represent the views or policies of the U.S. Environmental Protection Agency.

Funding Information:
This study was made possible by data kindly supplied by DFO-SCH and PSPC. Funding was provided by the province of Nova Scotia (NS Graduate Scholarship), the School for Resource and Environmental Studies, Dalhousie University , and NSERC Discovery Grant RGPIN-2018-04119 to T.R.W. The views expressed in this article are those of the authors and do not necessarily represent the views or policies of the U.S. Environmental Protection Agency.

Publisher Copyright:
© 2019 Elsevier B.V.

ASJC Scopus Subject Areas

Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution

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abstract = "Multiple source apportionment approaches were employed to investigate PAH sources which contribute to small craft harbor (SCH) sediments in Nova Scotia (NS), Canada. A total of 580 sediment samples were analyzed using PAH diagnostic ratios, Unmix Optimum receptor modeling, and by assessment of the composition of the PAH profile. PAH diagnostic ratios suggest PAHs are primarily of pyrogenic (thermal) origin, while UnmixO modeling identifies four individual sources which best describe surficial sediments and suggests contributions from both pyrogenic and petrogenic origins. These include coal combustion, automobile exhaust, and biomass incineration. PAH profile assessment determined an overwhelming contribution of high molecular weight PAHs, which exhibited a strong correlation with total PAH concentrations.",

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Source apportionment of polycyclic aromatic hydrocarbons (PAHs) in small craft harbor (SCH) surficial sediments in Nova Scotia, Canada

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ASJC Scopus Subject Areas

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