Ecological risk assessment of polycyclic aromatic hydrocarbons in the Persian Gulf surface sediments, Bushehr

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BATENI F.; MEHDINIA A.; SEYED HASHTROUDI M.

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Journal: IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT Year:2019 | Volume:11 | Issue:4 Page(s): 563-573

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Title

Ecological risk assessment of polycyclic aromatic hydrocarbons in the Persian Gulf surface sediments, Bushehr

Author(s)

BATENI F. | MEHDINIA A. | SEYED HASHTROUDI M. | Issue Writer Certificate

Keywords

Ecological risk assessmentQ1

Persian GulfQ1

Polycyclic aromatic hydrocarbonsQ1

Surface sedimentsQ1

Abstract

Background and Objective: This study conducted to assess ecological risk of an important group of pollutants called Polycyclic aromatic hydrocarbons (PAHs) in offshore sediment of the Persian Gulf deposits in Bushehr province. The aim of this study was to model the toxicity of PAHs for aquatic organisms in the study area. Materials and Methods: In the first step of the applied risk assessment model in this study, the unit of toxicity for each PAH and solubility were calculated by Quantitative Structure-Activity Relationships (QSAR) model. In the second step, the pore water concentration of all compounds in sediment was calculated as an available fraction. Finally, the proposed model was used to evaluate the offshore sediments of the Persian Gulf. Sediments in 19 stations and 7 transects were studied to assess the ecological risk of 21 PAHs. The extraction and clean up method was based on pressurized liquid extraction (PLE) with packed clean up cell. Compounds were analyzed by GC-MS. Results: The toxicity and solubility of PAHs were modeled. The Pearson correlation for the predicted and measured data was more than 0. 93. The amount of total toxicity was introduced as a risk index. The maximum and minimum total toxicity values for the sediments were found as 0. 018 and 0. 147, respectively. The results from this study indicated that although the concentration of PAHs in the sediments may not cause significant concern in the study area, they may affect benthic organism at the sub-lethal levels. According to the applied risk assessment model for 21 unsubstituted PAHs, the offshore sediments of Bushehr are in low-risk range. Conclusion: The result of this study indicated a low risk of the sediments. The hazard index decreased as the distance from coastal and oil and gas industry increased, indicating the high impact of anthropogenic activities on the contamination of the study area.

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APA: Copy

BATENI, F., MEHDINIA, A., & SEYED HASHTROUDI, M.. (2019). Ecological risk assessment of polycyclic aromatic hydrocarbons in the Persian Gulf surface sediments, Bushehr. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, 11(4 ), 563-573. SID. https://sid.ir/paper/145709/en

Vancouver: Copy

BATENI F., MEHDINIA A., SEYED HASHTROUDI M.. Ecological risk assessment of polycyclic aromatic hydrocarbons in the Persian Gulf surface sediments, Bushehr. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT[Internet]. 2019;11(4 ):563-573. Available from: https://sid.ir/paper/145709/en

IEEE: Copy

F. BATENI, A. MEHDINIA, and M. SEYED HASHTROUDI, “Ecological risk assessment of polycyclic aromatic hydrocarbons in the Persian Gulf surface sediments, Bushehr,” IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, vol. 11, no. 4 , pp. 563–573, 2019, [Online]. Available: https://sid.ir/paper/145709/en

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