Spatial and seasonal variations in suspended particulate matter concentration and composition in the Persian Gulf: From dust deposition and sediment resuspension to biological production in the regulation of the particulate trace elements

Ershadifar, Hamid; Saleh, Abolfazl; Kor, Kamalodin; Ghazilou, Amir; Hamzeh, Mohammad Ali

doi:10.1016/j.marpolbul.2024.116504

Marine Pollution Bulletin

2024

DOI: 10.1016/j.marpolbul.2024.116504

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Spatial and seasonal variations in suspended particulate matter concentration and composition in the Persian Gulf: From dust deposition and sediment resuspension to biological production in the regulation of the particulate trace elements

Hamid Ershadifar,

Abolfazl Saleh,

Kamalodin Kor

et al.

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2024

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Cited by 2 publications

References 81 publications

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Suspended particulate matter in the Gulf of Oman: Spatial variations in concentration, bulk composition, and particulate metals controlled by physical and biogeochemical processes

Ershadifar,

Saleh,

Koochaknejad

et al. 2024

Science of The Total Environment

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Suspended particulate matter in the Gulf of Oman: Spatial variations in concentration, bulk composition, and particulate metals controlled by physical and biogeochemical processes

Ershadifar,

Saleh,

Koochaknejad

et al. 2024

Science of The Total Environment

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Improvement of Bio-Optical Characteristics of Seawater in the Southern Caspian Sea Basin Triggered by COVID-19 Lockdowns: Insights from Remote Sensing Data

Ahmadi,

Gholamalifard,

Naghdi

et al. 2024

Ecol. Monten.

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Multiple studies have demonstrated that human activities have significant impacts on aquatic ecosystems, particularly in coastal areas. The COVID-19 pandemic, along with the sharp decline in industrial, transportation, and tourism activities, provided an opportunity to examine the impact of these changes on seawater quality in this study, using MODIS-Aqua satellite data, changes in key seawater quality indicators, including chlorophyll-a, dissolved organic matter, and suspended particles, were evaluated in the coastal and offshore areas of the Southern Caspian Sea basin during pre-lockdown and lockdown periods. The data analysis results showed a significant reduction in chlorophyll-a concentration in coastal areas and in dissolved organic matter in both coastal and offshore areas during the lockdown period. More specifically, this reduction was 24.9% and 40.7% for chlorophyll-a, and 22.1% and 19.5% for dissolved organic matter in coastal and offshore areas, respectively. The decline in these indicators reflects an improvement in seawater quality and a reduction in organic pollutant loads in these areas. The findings of this study highlight that reduced human activities have visibly positive effects on marine aquatic ecosystems. Therefore, continuous monitoring of bio-optical parameters changes and improving wastewater treatment processes before discharge into aquatic environments are of particular importance. This study also demonstrates that global pandemics can provide experimental opportunities to study the effects of human activities on the environment.

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Spatial and seasonal variations in suspended particulate matter concentration and composition in the Persian Gulf: From dust deposition and sediment resuspension to biological production in the regulation of the particulate trace elements

Cited by 2 publications

References 81 publications

Suspended particulate matter in the Gulf of Oman: Spatial variations in concentration, bulk composition, and particulate metals controlled by physical and biogeochemical processes

Suspended particulate matter in the Gulf of Oman: Spatial variations in concentration, bulk composition, and particulate metals controlled by physical and biogeochemical processes

Improvement of Bio-Optical Characteristics of Seawater in the Southern Caspian Sea Basin Triggered by COVID-19 Lockdowns: Insights from Remote Sensing Data

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