Marine pollution bulletin最新文献_第2页

Relationships between sediment size distribution and microplastic abundance and characteristics along the strandline of a sandy embayment (Whitsand, Southwest England)

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2025-02-18 DOI: 10.1016/j.marpolbul.2025.117686

Oliver J. Fenn, Edward J. Walklett, Andrew Turner

Beach sediments taken from 1 m² areas of strandline across an embayment in southwest England (Whitsand) have been analysed for grain size distribution and elemental content. Large (1–5 mm) and small (< 1 mm) microplastics were isolated by sieving and flotation in NaBr solution, respectively, and characterised by size, shape, colour and polymeric makeup. Sediments displayed varying median diameters and degrees of sorting but distributions were always positively skewed. Concentrations of Fe, K, Mn and Ti were relatively invariant, but Ca concentrations exhibited heterogeneous distributions across the bay. Large microplastics were largely composed of polyolefin-based pre-production pellets, bio-beads and fragments whose numbers were correlated with each other. Positive and inverse relationships between beads and sediment skewness and sorting, respectively, suggests that deposition of this type of plastic is favoured where sediment is well-sorted and contains a high proportion of fine material. Small microplastics were dominated by fragments and fibres <200 μm in size composed of a broader array of polymers (including epoxy resin, polyetherimide and polyvinyl alcohol). Fibres exhibited an inverse relationship with bead and pellet abundance but there was no evidence of dependency on grain size distribution, and their presence is attributed to entrapment in interstitial spaces between sediment grains. Compositional differences between large (1–5 mm) and small (< 1 mm) microplastic fragments suggests they are derived from different sources, with the former coupled with pellet and bead deposition and the latter small enough to be retained in interstitial spaces with fibres. However, a positive relationship between mean (small) fragment size and median sediment diameter suggests that their retention is more constrained by interstitial space than fibres. The study provides evidence that microplastics of different size and shape behave differently but are, ultimately, related to or controlled by sediment size distribution in the coastal littoral zone.

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引用次数: 0

Ecological effects and health risks of potentially toxic elements in Cyctoceria barbata and sediment

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2025-02-18 DOI: 10.1016/j.marpolbul.2025.117707

Evrim Sibel Önel , Erkan Kalipci , Mustafa Türkmen

A comprehensive study was conducted to evaluate the levels, sources, potential ecological risks, and impacts on public health of potential toxic elements (PTEs) in the sediments and C. barbata in 8 cities located on the Turkish coast of the Black Sea. In all the measuring stations, the enrichment factors (EF) for Ni, Zn and Cu metals in the sediments were in the “minimal enrichment” class. All PTEs have shown “low ecological risk” at all stations according to the ecological risk index (

E_{r}^{i})

. As a result of the geo-accumulation index (I_geo) analysis, As, Cd, Cr, Cu, Ni, and Zn were evaluated as “practically uncontaminated” at all sampling points. It was determined that the sediments at all stations were rated as “no heavy metal pollution” according to the pollution load index (PLI) result, “low toxicity level” according to the toxic units (TUs) result, and “low ecological risk” according to the potential ecological risk index (PERI) result. According to the biological risk index (BRI) results, sediments in Artvin, Rize, Giresun, Ordu, Sinop and Kastamonu were evaluated as “low priority side” and in Trabzon and Samsun as “medium-low priority side”. Since the metal pollution indeks (MPI) level was >1 in all stations, it is thought that C. barbata may pose a significant risk to human health if consumed.

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引用次数: 0

A systematic review on distribution, sources and impacts of heavy metals in mangrove ecosystems

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2025-02-18 DOI: 10.1016/j.marpolbul.2025.117666

Eliengerasia Godliving Koka , Catherine Aloyce Masao , Samwel Mchele Limbu , Charles Joseph Kilawe , Joel Norbert , Noah Makula Pauline , Joseph Perfect , Edmund B. Mabhuye

Mangrove ecosystems play a vital role in providing habitat for numerous plant and animal species, protecting coastlines from erosion and storm damage, and supporting coastal communities with natural resources. Several studies have been conducted on heavy metals due to advancements in technology, which have improved the accuracy in detecting, identifying, and quantifying the metals. However, our understanding on the distribution, sources, and impacts of heavy metals on mangrove ecosystem health and productivity is currently scattered and unorganized. This review aims to bridge knowledge gaps, inform conservation strategies, and promote interdisciplinary collaboration by synthesizing ecological, socio-economic, and policy-related insights. We reviewed 139 publications from 2003 to 2024 across 20 countries, sourced from four databases (Scopus, Web of Science, PubMed, and EBSCO) and one search engine (Google Scholar). The results revealed a rapid increase in publications on this topic globally, particularly during the period between 2010 and 2023. China (29%) and India (22%) emerged as the leading contributors to research on mangrove heavy metal contamination. The most frequently studied heavy metals were Cadmium followed by Lead, Copper, Zinc and Chromium. The major sources of heavy metals contamination in mangrove ecosystems were industrial effluents (36 %) and rapid land-use conversion (31 %) and sediments (51 %) were the most commonly investigated component of mangrove ecosystem. Heavy metals have negative effects on human health (44 %) and reduce mangroves growth and development (25 %). Future studies should prioritize investigating the interactions among heavy metals contamination, and mangrove productivity and health, as well as the resilience of associated species over time.

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引用次数: 0

Multifactorial risk mapping of oil spill accidents for emergency response areas at regional, national and international scales

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2025-02-17 DOI: 10.1016/j.marpolbul.2025.117670

Emre N. Otay, Pelin Uzun, Arben Üstün

Quantification and mapping of oil spill risk are essential for emergency response and mitigation of marine accidents. Large-scale risk management involves geographical identification of hazards and sensitivities in coastal and offshore regions. In this study, a multifactorial oil spill risk model was developed on a national scale by determining the frequency (probability) and sensitivity (severity) of marine and coastal accidents. Seven accident frequency and 51 sensitivity factors were investigated within the Turkish Emergency Response Area (TERA) of 660,908 km². Hydrographical, meteorological, oceanographical, and maritime conditions were analyzed to calculate accident frequency. The sensitive areas were mapped using the geographical distribution of ecologic, social, and economic assets. Using data analytics, digital maps of accident frequency, sensitivity and risk were produced in a GIS grid of 21,410 cells with 3NM resolution. Accident hotspots were identified from scalable frequency maps showing regions of high accident probability. Sensitivity factors were analyzed from environmental, social, and economic vulnerabilities. Using their geographic distribution, a sensitivity map was generated and hotspots were identified. Frequency and sensitivity indices were combined to obtain the grid-based high-resolution oil spill risk map on a scalable GIS platform. High-risk areas were identified for future research on oil spill simulations and emergency response plans. The methodology may help scientists and environmental experts develop regional, national, and global risk assessment tools. The outcomes within the TERA may serve as planning and decision support tools for lawmakers, environmental experts, and oil spill response professionals to manage oil pollution risk across the TERA.

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引用次数: 0

Sand dollars (Mellita quinquiesperforata): A new bioindicator for tracking PFAS in coastal waters

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2025-02-17 DOI: 10.1016/j.marpolbul.2025.117673

John A. Bowden , Qaim Mehdi , Lauren E. Blackman , Keyla Correia , Thomas D. Sinkway , Jana Marcin , Bradley T. Furman , Victoria Congdon , Joe Aufmuth

Sand dollars are unique environmental monitoring indicators in that they are benthic burrowers in coastal habitats, and as primary consumers, they have the ability to bioaccumulate pollutants from the sediment. In this study, we examined per- and polyfluoroalkyl substances (PFAS) in sand dollars (Mellita quinquiesperforata) at six sites within Tampa Bay, Florida (USA). Overall, 13 PFAS were detected in at least one sand dollar, with the top-3 mean concentrations: perfluorooctanesulfonic acid (5.29 ng/g, dry weight), perfluorobutanoic acid (3.72 ng/g), and perfluorohexanesulfonic acid (2.46 ng/g). Of note, perfluoroalkyl carboxylic acids (PFCA) concentrations decreased with chain length while perfluoroalkyl sulfonic acids (PFSA) concentrations increased with chain length, and on average, the Σ₁₃PFAS was comprised of 68 % PFSAs. Short chain PFAS were among those that showed the greatest potential to bioaccumulate in the sand dollars. Overall, these data suggest that sand dollars are suitable as indicators for assessing PFAS-sediment pollution in benthic environments.

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引用次数: 0

Study the effect of tropical cyclones on dissolved oxygen in the north Indian Ocean using Argo and satellite data

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2025-02-17 DOI: 10.1016/j.marpolbul.2025.117679

Bhanu Priya Boipai , Sachiko Mohanty

The study investigates the role of tropical cyclones (TCs) in dissolved oxygen (DO) distributions and Oxygen Minimum Zone (OMZ) variability in the northern Indian Ocean (IO) for 2019–2022. The analyses revealed under the influence TCs the thickness of OMZ varied between ∼610–753 m and ∼ 922–1179 m at different locations in Bay of Bengal (BoB) and Arabian Sea (AS) respectively. The OMZ thickness during TC Sitrang was >740 m unlike during TCs Fani and Yaas which occurred in post monsoon season. Strong near-surface wind stress on right side of TC track causes thickening of OMZ after the cyclone. OMZ thickness decreases at the BGC-Argo located on left side of the cyclone track. The observed vertical profiles also suggest three different surface and subsurface DO variability during TCs. The TC-induced upwelling during Sitrang decreased DO up to ∼80 m by bringing cold, high saline and low-oxygen waters from deep subsurface layers to shallow layers. While at Argo 2902271, DO first decreased up to 48 m then increased in the subsurface layer between 49 and 89 m and between 99 and 176 m due to the vertical mixing induced by TC Vayu.Such response occurred during TCs Kyarr (Argo 2902270, 2902275), and Maha (Argo 2902271, 2902272, 2902275) that mixed the surface DO rich water with the subsurface layers. Lastly, the third type is characterized by layered thermal and DO profile due to combined effect of TC induced upwelling and vertical mixing observed during TCs Fani (Argo 2902264), Yaas (Argo 2902758), Tauktae (Argo 2902273), Vayu (Argo 2902276), Kyarr (2902277), and Maha (2902270).

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引用次数: 0

Kuala Gula Bird Sanctuary, Perak, Malaysia: Status, challenges and future for migratory shorebirds population in the East-Asian Australian Flyway

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2025-02-17 DOI: 10.1016/j.marpolbul.2025.117690

Faid Rahman , Ahmad Ismail , Saiful Arif Abdullah , Aldrie Amir , Nuriah Abd Majid

Birds are an excellent bio-indicator of biodiversity changes. Migratory shorebirds in particular cover a large distances traversing different types of habitats, from the tundra region in the most northern part of the world, to tropical and temperate areas in the southern most area. Kuala Gula, a sanctuary for more than 200 bird species is part of an Important Bird and Biodiversity Areas (IBAs) along the East-Asian Australian Flyway. Despite its importance, the area including its coastline is continuously pressured by anthropogenic activity. As such, there is a need to critically review Kuala Gula's environmental status to highlight its potential, along with understanding the issues and threats particularly to the migratory shorebirds population in the long run. This is important not just to maintain Kuala Gula's relevance as part of the important IBA in the Southeast Asia, but also to ascertain its qualification to meet its recognition's goal. Throughout this review, we found that there are several issues that need to be addressed urgently, particularly ones related to pollution activity. Furthermore, the studies done so far are not coordinated well enough and lack continuity. As such, certain important information is still lacking making the protection and conservation of the area a big challenge. It is concluded that, the stability and sustainability of Kuala Gula's habitats and its coastline is at stake, and there is a hope that this review will help related stakeholders to understand the current issues, and work together effectively to conserve the area.

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引用次数: 0

Influencing factors of groundwater 238U, 232Th, 40K, and rare earth element contamination: Insights from the two-dimensional Monte Carlo simulation of radiological risks

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2025-02-17 DOI: 10.1016/j.marpolbul.2025.117682

Jelena Vesković, Antonije Onjia

Ionizing radiation from naturally occurring radioactive materials (NORM) can pose significant health risks to humans, particularly when contaminating groundwater. As a vital resource, groundwater is essential for drinking, irrigation, and industrial processes in many regions worldwide. Therefore, this study developed a comprehensive and innovative method for groundwater source-specific radiological risk assessment, integrating multivariate statistical analysis, the two-dimensional Monte Carlo simulation (2D MCS), and a geographic information system (GIS) for mapping. Groundwater samples from an agricultural region were analyzed for radionuclides, including ²³⁸U, ²³²Th, and ⁴⁰K, alongside sixteen rare earth elements (REE). Using the positive matrix factorization model, three pollution sources were identified: geogenic processes, weathering of REE-rich rocks, and agricultural activities. The results of source-specific radiological risk assessment revealed that adults were more vulnerable to radiological risk than children, and agricultural activities as the dominant contributor to risks. It was concluded that exposure frequency (EF), ingestion rate (IR), and ⁴⁰K concentration were the exposure parameters with the greatest impact on radiological risk. Modeling these parameters established their critical values as 190 days/year, 2 L/day, and 415 ng/L, respectively, to ensure that the radiological risk for adults remains within the safety limit. Additionally, the incorporation of the 2D MCS into the risk assessment process significantly enhanced the accuracy and precision of the results, in comparison with the deterministic and one-dimensional Monte Carlo simulation (1D MCS) models. This research provides practical guidance for the sustainable management of water resources and presents an innovative methodology that can be applied to similar regions globally.

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引用次数: 0

Potential risk of macro-plastic on the megafauna of two semi-enclosed European seas

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2025-02-17 DOI: 10.1016/j.marpolbul.2025.117683

N. Ferreira , C. Piroddi , N. Serpetti , E. Garcia-Gorriz , S. Miladinova , D. Macias

Plastic pollution, particularly macro-plastic, poses significant threats to marine ecosystems worldwide, with adverse effects on marine megafauna such as mammals, seabirds, and sea turtles. This study examines the areas of higher risk of megafauna encountering floating macro-plastics in the Mediterranean and Black Seas, semi-enclosed basins with high anthropogenic pressures and plastic densities. Using Lagrangean and food-web models, we identify areas of risk by evaluating the co-occurrence and potential entanglement of floating macro-plastic with megafauna distributions for three years (2016–2018). The results show that continental shelves and open waters of the Western Mediterranean and the North Aegean/Levantine Seas are the most potentially impacted areas for marine mammals. In the Black Sea, the probability of encounter between marine mammals and macro-plastic is higher in the eastern shelf and seabirds have higher probability of encounter in the northwestern shelf. Seabirds in the Mediterranean Sea are more at risk of encountering macro-plastic in coastal areas, particularly in the Adriatic Sea. The analysis quantifies biomass exposure to varying plastic densities and estimates species-specific entanglement vulnerability scores, revealing that seabirds exhibit the highest exposure, followed by sea turtles and marine mammals. This study provides information to help understanding of the potential damage posed by plastic pollution on megafauna, contributing to the identification of priority areas for conservation and assessing the scale of ecological impacts.

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引用次数: 0

Heavy metals and arsenic in macrophytes, sediments and seawater from the coastal area of Northern and Central Vietnam

IF 5.3 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin

Pub Date : 2025-02-17 DOI: 10.1016/j.marpolbul.2025.117672

Sergey V. Kapranov , Alexander M. Toichkin , Oksana S. Belous , Elena V. Gureeva , Sophia S. Barinova , Vitaliy I. Ryabushko

In the past decade, there has been a boost in the industry development in Vietnam, which is the cause of increased heavy metal release in the environment. The study presents the results of voltammetric analysis of heavy metals (Cu, Zn, Cd, Pb) and arsenic in water, sediments and 38 macrophyte species from the coastal area of Northern and Central Vietnam. The effects of sampling station location, depth, and algal divisions/species on elemental concentrations in the macrophytes were tested. Among the macrophyte species, the highest elemental concentrations were found in the red alga Laurencia sp. (As – 72 mg·kg⁻¹) and brown algae Padina australis (Cd – 3.8 mg·kg⁻¹), Spatoglossum vietnamense (Pb – 14.8 mg·kg⁻¹), Dictyota dichotoma (Cu – 102 mg·kg⁻¹), and Sargassum sp. (Zn – 32.5 mg·kg⁻¹). The red and brown algae were the strongest trace element accumulators, while the green algae showed modest accumulation abilities. A significant decrease in the elemental concentrations in the seaweeds was observed with increasing depth, but As in the brown and red algae and Cd and Pb in the green algae were most accumulated at intermediate depths (5–8 m). The maximum arsenic and the minimum zinc concentrations in sediments were noted at the southern exit of the gulf. The bioaccumulation factors followed skewed, long-tailed distributions, with their maxima ranging from near zero (Cu) to several hundred (Cd). The study highlights spatial regularities of heavy metal accumulation and applicability of brown algal species as non-selective bioindicators of heavy metal pollution in the coastal area of Vietnam.

{"title":"Heavy metals and arsenic in macrophytes, sediments and seawater from the coastal area of Northern and Central Vietnam","authors":"Sergey V. Kapranov , Alexander M. Toichkin , Oksana S. Belous , Elena V. Gureeva , Sophia S. Barinova , Vitaliy I. Ryabushko","doi":"10.1016/j.marpolbul.2025.117672","DOIUrl":"10.1016/j.marpolbul.2025.117672","url":null,"abstract":"<div><div>In the past decade, there has been a boost in the industry development in Vietnam, which is the cause of increased heavy metal release in the environment. The study presents the results of voltammetric analysis of heavy metals (Cu, Zn, Cd, Pb) and arsenic in water, sediments and 38 macrophyte species from the coastal area of Northern and Central Vietnam. The effects of sampling station location, depth, and algal divisions/species on elemental concentrations in the macrophytes were tested. Among the macrophyte species, the highest elemental concentrations were found in the red alga <em>Laurencia</em> sp. (As – 72 mg·kg<sup>−1</sup>) and brown algae <em>Padina australis</em> (Cd – 3.8 mg·kg<sup>−1</sup>), <em>Spatoglossum vietnamense</em> (Pb – 14.8 mg·kg<sup>−1</sup>), <em>Dictyota dichotoma</em> (Cu – 102 mg·kg<sup>−1</sup>), and <em>Sargassum</em> sp. (Zn – 32.5 mg·kg<sup>−1</sup>). The red and brown algae were the strongest trace element accumulators, while the green algae showed modest accumulation abilities. A significant decrease in the elemental concentrations in the seaweeds was observed with increasing depth, but As in the brown and red algae and Cd and Pb in the green algae were most accumulated at intermediate depths (5–8 m). The maximum arsenic and the minimum zinc concentrations in sediments were noted at the southern exit of the gulf. The bioaccumulation factors followed skewed, long-tailed distributions, with their maxima ranging from near zero (Cu) to several hundred (Cd). The study highlights spatial regularities of heavy metal accumulation and applicability of brown algal species as non-selective bioindicators of heavy metal pollution in the coastal area of Vietnam.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"213 ","pages":"Article 117672"},"PeriodicalIF":5.3,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143422325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0