Baseline occurrence, distribution and sources of PAHs, TPH, and OCPs in surface sediments in Gorgan Bay, Iran

Ghasem Ghorbanzadeh Zafarani; Samaneh Karbalaei; Reza Golshani; Inna Pustokhina; Tony R. Walker

doi:10.1016/j.marpolbul.2022.113346

Baseline occurrence, distribution and sources of PAHs, TPH, and OCPs in surface sediments in Gorgan Bay, Iran

Ghasem Ghorbanzadeh Zafarani, Samaneh Karbalaei, Reza Golshani, Inna Pustokhina, Tony R. Walker

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Abstract

Baseline polycyclic aromatic hydrocarbons (PAHs), total petroleum hydrocarbons (TPH) and organochlorine pesticides (OCPs) in surface sediments were measured in Gorgan Bay, Iran. Total PAHs, TPH, and OCPs concentrations ranged between 13.70 and 23.68 ng g⁻¹, 2.97 to 11.51 μg g⁻¹ dry weight, and below detection to 1.41 ng g⁻¹, respectively. Benzo [k] fluoranthene and anthracene had the highest (BkF; 19.77 ± 0.08 ng g⁻¹), and lowest (Ant; 4.38 ± 1.72 ng g⁻¹) individual PAH concentrations, respectively. The most abundant OCPs were β-Endosulfan, followed by methoxychlor and endrin. PAH isomeric ratios in sediments revealed that contamination originated from mixed sources, with a strong indication of pyrogenic sources. Ecological risk assessments based on sediment quality guidelines (SQGs) suggested that individual PAHs and OCPs posed low ecological risks in Gorgan Bay.

Original language	English
Article number	113346
Journal	Marine Pollution Bulletin
Volume	175
DOIs	https://doi.org/10.1016/j.marpolbul.2022.113346
Publication status	Published - Feb 2022

Bibliographical note

Funding Information:
This work was supported by Department of Environment (DOE) of I.R.Iran .

Publisher Copyright:
© 2022

ASJC Scopus Subject Areas

Oceanography
Aquatic Science
Pollution

PubMed: MeSH publication types

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10.1016/j.marpolbul.2022.113346

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title = "Baseline occurrence, distribution and sources of PAHs, TPH, and OCPs in surface sediments in Gorgan Bay, Iran",

abstract = "Baseline polycyclic aromatic hydrocarbons (PAHs), total petroleum hydrocarbons (TPH) and organochlorine pesticides (OCPs) in surface sediments were measured in Gorgan Bay, Iran. Total PAHs, TPH, and OCPs concentrations ranged between 13.70 and 23.68 ng g−1, 2.97 to 11.51 μg g−1 dry weight, and below detection to 1.41 ng g−1, respectively. Benzo [k] fluoranthene and anthracene had the highest (BkF; 19.77 ± 0.08 ng g−1), and lowest (Ant; 4.38 ± 1.72 ng g−1) individual PAH concentrations, respectively. The most abundant OCPs were β-Endosulfan, followed by methoxychlor and endrin. PAH isomeric ratios in sediments revealed that contamination originated from mixed sources, with a strong indication of pyrogenic sources. Ecological risk assessments based on sediment quality guidelines (SQGs) suggested that individual PAHs and OCPs posed low ecological risks in Gorgan Bay.",

author = "Zafarani, {Ghasem Ghorbanzadeh} and Samaneh Karbalaei and Reza Golshani and Inna Pustokhina and Walker, {Tony R.}",

note = "Funding Information: This work was supported by Department of Environment (DOE) of I.R.Iran . Publisher Copyright: {\textcopyright} 2022",

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AU - Zafarani, Ghasem Ghorbanzadeh

AU - Karbalaei, Samaneh

AU - Golshani, Reza

AU - Pustokhina, Inna

AU - Walker, Tony R.

PY - 2022/2

Y1 - 2022/2

N2 - Baseline polycyclic aromatic hydrocarbons (PAHs), total petroleum hydrocarbons (TPH) and organochlorine pesticides (OCPs) in surface sediments were measured in Gorgan Bay, Iran. Total PAHs, TPH, and OCPs concentrations ranged between 13.70 and 23.68 ng g−1, 2.97 to 11.51 μg g−1 dry weight, and below detection to 1.41 ng g−1, respectively. Benzo [k] fluoranthene and anthracene had the highest (BkF; 19.77 ± 0.08 ng g−1), and lowest (Ant; 4.38 ± 1.72 ng g−1) individual PAH concentrations, respectively. The most abundant OCPs were β-Endosulfan, followed by methoxychlor and endrin. PAH isomeric ratios in sediments revealed that contamination originated from mixed sources, with a strong indication of pyrogenic sources. Ecological risk assessments based on sediment quality guidelines (SQGs) suggested that individual PAHs and OCPs posed low ecological risks in Gorgan Bay.

AB - Baseline polycyclic aromatic hydrocarbons (PAHs), total petroleum hydrocarbons (TPH) and organochlorine pesticides (OCPs) in surface sediments were measured in Gorgan Bay, Iran. Total PAHs, TPH, and OCPs concentrations ranged between 13.70 and 23.68 ng g−1, 2.97 to 11.51 μg g−1 dry weight, and below detection to 1.41 ng g−1, respectively. Benzo [k] fluoranthene and anthracene had the highest (BkF; 19.77 ± 0.08 ng g−1), and lowest (Ant; 4.38 ± 1.72 ng g−1) individual PAH concentrations, respectively. The most abundant OCPs were β-Endosulfan, followed by methoxychlor and endrin. PAH isomeric ratios in sediments revealed that contamination originated from mixed sources, with a strong indication of pyrogenic sources. Ecological risk assessments based on sediment quality guidelines (SQGs) suggested that individual PAHs and OCPs posed low ecological risks in Gorgan Bay.

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Baseline occurrence, distribution and sources of PAHs, TPH, and OCPs in surface sediments in Gorgan Bay, Iran

Abstract

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