Marine pollution bulletin最新文献

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Corrigendum to "Carbon intensity indicator (CII) compliance: Applications of ship speed optimization on each level using measurement data" [Mar. Pollut. Bull. 212 (2025) 117593].

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

Marine pollution bulletin

Pub Date : 2025-02-08 DOI: 10.1016/j.marpolbul.2025.117643

Duowen Yan, Chen Chen, Weidong Gan, Kenji Sasa, Guanghua He, Hongchu Yu

引用次数: 0

Good news or bad news? The portrayal and evolution of marine pollution issues in Taiwan's news coverage

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

Marine pollution bulletin

Pub Date : 2025-02-08 DOI: 10.1016/j.marpolbul.2025.117663

Jia-An Ye , Yu-Min Pan , Chun-Hao Jung , Ta-Kang Liu

News coverage is crucial in increasing public awareness and encouraging engagement with marine environmental issues. However, there are notable gaps in knowledge regarding reporting on marine pollution. Previous studies often focused on environmental themes but neglected the dynamics of themes and stakeholders within societal contexts. Therefore, this study analyzes the long-term trends and implications of marine pollution in Taiwan's news coverage. A total of 3482 news articles related to marine pollution over the past 20 years were analyzed using qualitative content analysis (QCA) and multiple correspondence analysis (MCA). The results showed that negative news coverage predominated. However, as the government and citizen groups proposed policies and initiatives to mitigate marine pollution, neutral and positive coverage has increased recently. News coverage also highlights the spatial characteristics of marine pollution. Oil pollution primarily occurs in coastal industrial zones and international ports, whereas areas near tourist attractions are more prone to accumulating marine debris. Additionally, this study indicates that differences in the amount of news on various types of pollution lead to distinct attention patterns. Marine oil pollution is an event-driven attention pattern. It usually spikes media attention during significant incidents, further prompting the government to revise emergency plans and related regulations. However, marine debris is a progressive attention pattern. Citizen groups initially spearheaded efforts regarding marine debris, gradually attracting public involvement, gaining media attention, and prompting government action. Overall, news coverage effectively illustrates the evolution of themes and the dynamic interactions among stakeholders related to marine pollution issues.

{"title":"Good news or bad news? The portrayal and evolution of marine pollution issues in Taiwan's news coverage","authors":"Jia-An Ye , Yu-Min Pan , Chun-Hao Jung , Ta-Kang Liu","doi":"10.1016/j.marpolbul.2025.117663","DOIUrl":"10.1016/j.marpolbul.2025.117663","url":null,"abstract":"<div><div>News coverage is crucial in increasing public awareness and encouraging engagement with marine environmental issues. However, there are notable gaps in knowledge regarding reporting on marine pollution. Previous studies often focused on environmental themes but neglected the dynamics of themes and stakeholders within societal contexts. Therefore, this study analyzes the long-term trends and implications of marine pollution in Taiwan's news coverage. A total of 3482 news articles related to marine pollution over the past 20 years were analyzed using qualitative content analysis (QCA) and multiple correspondence analysis (MCA). The results showed that negative news coverage predominated. However, as the government and citizen groups proposed policies and initiatives to mitigate marine pollution, neutral and positive coverage has increased recently. News coverage also highlights the spatial characteristics of marine pollution. Oil pollution primarily occurs in coastal industrial zones and international ports, whereas areas near tourist attractions are more prone to accumulating marine debris. Additionally, this study indicates that differences in the amount of news on various types of pollution lead to distinct attention patterns. Marine oil pollution is an event-driven attention pattern. It usually spikes media attention during significant incidents, further prompting the government to revise emergency plans and related regulations. However, marine debris is a progressive attention pattern. Citizen groups initially spearheaded efforts regarding marine debris, gradually attracting public involvement, gaining media attention, and prompting government action. Overall, news coverage effectively illustrates the evolution of themes and the dynamic interactions among stakeholders related to marine pollution issues.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"213 ","pages":"Article 117663"},"PeriodicalIF":5.3,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143372183","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

Unseen threats along the coast and in underwater ecosystems of South Korea: The severity of marine debris entanglement

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

Marine pollution bulletin

Pub Date : 2025-02-08 DOI: 10.1016/j.marpolbul.2025.117623

Hee-Jin Noh , Won Joon Shim , Sung Yong Ha , Sang Hee Hong , Taejin Kwak , Sunwook Hong

Plastic pollution threatens marine ecosystems, but research on interactions between plastic and marine fauna, especially entanglement at the national level is limited. This study aims to address this deficit by investigating marine fauna entanglement with marine debris in South Korean coastal and marine ecosystems. Comprehensive data were collected from government wildlife rescue centers, an online platform, internet searches, and scuba divers' underwater exploration descriptions. A total of 428 entanglement cases were documented (338 from coastal areas and 90 from underwater exploration) between 2003 and 2023. The analysis identified at least 77 affected species, including birds, sea turtles, marine mammals, fish, corals, and marine invertebrates. Overall, 13.0 % were listed as threatened or near threatened by the International Union for Conservation of Nature (IUCN) Global Red List, and 14.5 % were legally protected in Korea. The total number of entanglements considerably increased over time, especially in coastal regions. The sources of entanglement primarily involve monofilament lines and hooks associated with recreational fishing, as well as other fishing-related debris such as nets, ropes, and traps. These entanglements affect multiple groups of animals across different taxa. Our results support the need for stricter regulations and improved management of fishing activities to mitigate their impact on marine life. Future efforts should focus on enhancing data collection methods and integrating contributions from government agencies, associated organizations, and citizen scientists. Citizen scientist involvement will be particularly valuable for collecting data in less accessible underwater areas. Our findings may also apply to other large marine ecosystems with similar data deficits.

{"title":"Unseen threats along the coast and in underwater ecosystems of South Korea: The severity of marine debris entanglement","authors":"Hee-Jin Noh , Won Joon Shim , Sung Yong Ha , Sang Hee Hong , Taejin Kwak , Sunwook Hong","doi":"10.1016/j.marpolbul.2025.117623","DOIUrl":"10.1016/j.marpolbul.2025.117623","url":null,"abstract":"<div><div>Plastic pollution threatens marine ecosystems, but research on interactions between plastic and marine fauna, especially entanglement at the national level is limited. This study aims to address this deficit by investigating marine fauna entanglement with marine debris in South Korean coastal and marine ecosystems. Comprehensive data were collected from government wildlife rescue centers, an online platform, internet searches, and scuba divers' underwater exploration descriptions. A total of 428 entanglement cases were documented (338 from coastal areas and 90 from underwater exploration) between 2003 and 2023. The analysis identified at least 77 affected species, including birds, sea turtles, marine mammals, fish, corals, and marine invertebrates. Overall, 13.0 % were listed as threatened or near threatened by the International Union for Conservation of Nature (IUCN) Global Red List, and 14.5 % were legally protected in Korea. The total number of entanglements considerably increased over time, especially in coastal regions. The sources of entanglement primarily involve monofilament lines and hooks associated with recreational fishing, as well as other fishing-related debris such as nets, ropes, and traps. These entanglements affect multiple groups of animals across different taxa. Our results support the need for stricter regulations and improved management of fishing activities to mitigate their impact on marine life. Future efforts should focus on enhancing data collection methods and integrating contributions from government agencies, associated organizations, and citizen scientists. Citizen scientist involvement will be particularly valuable for collecting data in less accessible underwater areas. Our findings may also apply to other large marine ecosystems with similar data deficits.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"213 ","pages":"Article 117623"},"PeriodicalIF":5.3,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143349213","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

Evaluation of microplastics and metal accumulation in domestic ducks (Anas platyrhynchos f. domesticus) of a contaminated reservoir in Central Mexico

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

Marine pollution bulletin

Pub Date : 2025-02-08 DOI: 10.1016/j.marpolbul.2025.117639

P. Magaña-Olivé , E. Martinez-Tavera , S.B. Sujitha , J.M. Cunill-Flores , S. Martinez-Gallegos , J. Sierra , J. Rovira

We procured a total of 22 Anas platyrhynchos f. domesticus (domestic ducks) individuals around the Valsequillo Dam, Puebla, Mexico, to assess ingested plastics and accumulated metals (As, Ba, Cd, Cr, Cu, Hg, Ni, Pb, Zn). The morphometric results of all the samples presented adverse body conditions, where the females had less average body weight (1.94 ± 0.30 kg), height (53. 7 ± 2.78 cm) and wingspan length (92.6 ± 7.45 cm) compared to the male species. The coefficients of variation of all the studied elements (CV > 36 %), except Cu in feathers, demonstrated a high degree of variation, implying exogenous contamination from human activities. Nearly all the studied species presented MP ingestion, with an average of 154.9 suspected particles/ individual. The colour of the MPs was mainly blue (35 %) and transparent (32 %), while the principal forms of MPs were fragments (53 %) and filaments (36 %). The SEM-EDX characterization presented carbon and oxygen peaks and affirmed that the extracted particles are polyethylene and polypropylene. The Pollution Load Index values for MPs were found to be >1, signifying that the site is polluted by MPs, and the calculated Potential Risk Index denoted that the ducks are at low risk of exposure to Cd, Cr, Zn and Ni, and a constant exposure to Cu can be harmful. The study will contribute to establishing baseline data to elucidate the degree of accumulation of MPs and metals in domestic ducks which will be used to employ monitoring programs for the sustainable conservation of the aquatic ecosystem.

{"title":"Evaluation of microplastics and metal accumulation in domestic ducks (Anas platyrhynchos f. domesticus) of a contaminated reservoir in Central Mexico","authors":"P. Magaña-Olivé , E. Martinez-Tavera , S.B. Sujitha , J.M. Cunill-Flores , S. Martinez-Gallegos , J. Sierra , J. Rovira","doi":"10.1016/j.marpolbul.2025.117639","DOIUrl":"10.1016/j.marpolbul.2025.117639","url":null,"abstract":"<div><div>We procured a total of 22 <em>Anas platyrhynchos</em> f. <em>domesticus</em> (domestic ducks) individuals around the Valsequillo Dam, Puebla, Mexico, to assess ingested plastics and accumulated metals (As, Ba, Cd, Cr, Cu, Hg, Ni, Pb, Zn). The morphometric results of all the samples presented adverse body conditions, where the females had less average body weight (1.94 ± 0.30 kg), height (53. 7 ± 2.78 cm) and wingspan length (92.6 ± 7.45 cm) compared to the male species. The coefficients of variation of all the studied elements (CV > 36 %), except Cu in feathers, demonstrated a high degree of variation, implying exogenous contamination from human activities. Nearly all the studied species presented MP ingestion, with an average of 154.9 suspected particles/ individual. The colour of the MPs was mainly blue (35 %) and transparent (32 %), while the principal forms of MPs were fragments (53 %) and filaments (36 %). The SEM-EDX characterization presented carbon and oxygen peaks and affirmed that the extracted particles are polyethylene and polypropylene. The Pollution Load Index values for MPs were found to be >1, signifying that the site is polluted by MPs, and the calculated Potential Risk Index denoted that the ducks are at low risk of exposure to Cd, Cr, Zn and Ni, and a constant exposure to Cu can be harmful. The study will contribute to establishing baseline data to elucidate the degree of accumulation of MPs and metals in domestic ducks which will be used to employ monitoring programs for the sustainable conservation of the aquatic ecosystem.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"213 ","pages":"Article 117639"},"PeriodicalIF":5.3,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143349215","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

Organophosphate ester flame retardants in sediments and marine fish species in Colombia: Occurrence, distribution, and implications for human risk assessment

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

Marine pollution bulletin

Pub Date : 2025-02-08 DOI: 10.1016/j.marpolbul.2025.117654

Rafael Olivero-Verbel , Ethel Eljarrat , Boris Johnson-Restrepo

Exposure to organophosphate esters (OPEs) remains a significant concern, especially in aquatic systems where these compounds can bioaccumulate in organisms. However, limited information exists regarding their potential health risks to humans through the food web in tropical ecosystems. This study investigated the levels, bioaccumulation, and trophic transfer of OPEs in sediments and marine fish species from Cartagena and Barbacoas bays, Colombia. Twenty target OPEs were quantified in sediments and fish. The average concentrations of ∑₁₈OPEs in sediments ranged from 2.80 to 115 ng/g dry weight (dw), while ∑₂₀OPE concentrations in fish ranged from 212 to 1968 ng/g lipid weight (lw), with the highest concentrations found in carnivorous species. Trophic magnification factors (TMF) for OPEs varied from 11.0 to 25.8 for compounds such as 2-ethylhexyl diphenyl phosphate (EHDPP), 4-isopropylphenyl diphenyl phosphate (4IPPDPP), tris(2-isopropylphenyl) phosphate (T2IPPP), and tricresylphosphate (TCP), indicating their potential for biomagnification within the marine food web. Biota-sediment accumulation factors (BSAF) for ∑₁₁OPEs ranged from 0.340 to 4.32, showing a significant Spearman correlation with log Kow in fish: Pargo chino (r = −0.78, p < 0.05), Mojarra blanca (r = 0.79, p < 0.05), and Lisa (r = 0.72, p < 0.05). This suggests that bioaccumulation and biomagnification of certain OPEs in fish increase with the lipophilicity of these compounds. Despite these findings, the potential human health risk from OPE exposure via fish consumption was found to be minimal.

{"title":"Organophosphate ester flame retardants in sediments and marine fish species in Colombia: Occurrence, distribution, and implications for human risk assessment","authors":"Rafael Olivero-Verbel , Ethel Eljarrat , Boris Johnson-Restrepo","doi":"10.1016/j.marpolbul.2025.117654","DOIUrl":"10.1016/j.marpolbul.2025.117654","url":null,"abstract":"<div><div>Exposure to organophosphate esters (OPEs) remains a significant concern, especially in aquatic systems where these compounds can bioaccumulate in organisms. However, limited information exists regarding their potential health risks to humans through the food web in tropical ecosystems. This study investigated the levels, bioaccumulation, and trophic transfer of OPEs in sediments and marine fish species from Cartagena and Barbacoas bays, Colombia. Twenty target OPEs were quantified in sediments and fish. The average concentrations of ∑<sub>18</sub>OPEs in sediments ranged from 2.80 to 115 ng/g dry weight (dw), while ∑<sub>20</sub>OPE concentrations in fish ranged from 212 to 1968 ng/g lipid weight (lw), with the highest concentrations found in carnivorous species. Trophic magnification factors (TMF) for OPEs varied from 11.0 to 25.8 for compounds such as 2-ethylhexyl diphenyl phosphate (EHDPP), 4-isopropylphenyl diphenyl phosphate (4IPPDPP), tris(2-isopropylphenyl) phosphate (T2IPPP), and tricresylphosphate (TCP), indicating their potential for biomagnification within the marine food web. Biota-sediment accumulation factors (BSAF) for ∑<sub>11</sub>OPEs ranged from 0.340 to 4.32, showing a significant Spearman correlation with log Kow in fish: Pargo chino (<em>r</em> = −0.78, <em>p</em> < 0.05), Mojarra blanca (<em>r</em> = 0.79, p < 0.05), and Lisa (<em>r</em> = 0.72, p < 0.05). This suggests that bioaccumulation and biomagnification of certain OPEs in fish increase with the lipophilicity of these compounds. Despite these findings, the potential human health risk from OPE exposure via fish consumption was found to be minimal.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"213 ","pages":"Article 117654"},"PeriodicalIF":5.3,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143349216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of persistent toxic substances in sediments of Gyeonggi Bay, Korea: Distributions, sources, and potential ecological risks

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

Marine pollution bulletin

Pub Date : 2025-02-08 DOI: 10.1016/j.marpolbul.2025.117652

Hyunseo Song , Taewoo Kim , Junghyun Lee , Seo Joon Yoon , Beomgi Kim , Youngnam Kim , Seongjin Hong , Jong Seong Khim

Persistent toxic substances (PTSs) from anthropogenic activities are a growing concern for marine ecosystems. In addition, the specific sources and ecological consequences of PTSs, particularly in coastal regions influenced by industrial and urban developments, remain insufficiently understood. This study evaluated the distribution, sources, and risks of 54 PTSs in Gyeonggi Bay. Polycyclic aromatic hydrocarbons (PAHs) ranged from 22.0 ng g⁻¹ dw to 2710 ng g⁻¹ dw, and alkylphenols (APs) peaked at 21,500 ng g⁻¹ dw in source-dominated areas. Elevated levels were observed in Incheon Port and Lake Sihwa, from industrial and urban wastewater discharges. PMF modeling identified fossil fuel combustion as the main source of PAHs and natural and agriculture for metal(loid)s. Ecological risk assessments revealed significant contributions of metal(loid)s (49.1 %) and APs (39.3 %), with nonylphenols and arsenic posing the highest risks. These findings highlight the need for continuous monitoring and stricter regulations to mitigate the impacts of PTSs in marine ecosystems.

{"title":"Assessment of persistent toxic substances in sediments of Gyeonggi Bay, Korea: Distributions, sources, and potential ecological risks","authors":"Hyunseo Song , Taewoo Kim , Junghyun Lee , Seo Joon Yoon , Beomgi Kim , Youngnam Kim , Seongjin Hong , Jong Seong Khim","doi":"10.1016/j.marpolbul.2025.117652","DOIUrl":"10.1016/j.marpolbul.2025.117652","url":null,"abstract":"<div><div>Persistent toxic substances (PTSs) from anthropogenic activities are a growing concern for marine ecosystems. In addition, the specific sources and ecological consequences of PTSs, particularly in coastal regions influenced by industrial and urban developments, remain insufficiently understood. This study evaluated the distribution, sources, and risks of 54 PTSs in Gyeonggi Bay. Polycyclic aromatic hydrocarbons (PAHs) ranged from 22.0 ng g<sup>−1</sup> dw to 2710 ng g<sup>−1</sup> dw, and alkylphenols (APs) peaked at 21,500 ng g<sup>−1</sup> dw in source-dominated areas. Elevated levels were observed in Incheon Port and Lake Sihwa, from industrial and urban wastewater discharges. PMF modeling identified fossil fuel combustion as the main source of PAHs and natural and agriculture for metal(loid)s. Ecological risk assessments revealed significant contributions of metal(loid)s (49.1 %) and APs (39.3 %), with nonylphenols and arsenic posing the highest risks. These findings highlight the need for continuous monitoring and stricter regulations to mitigate the impacts of PTSs in marine ecosystems.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"213 ","pages":"Article 117652"},"PeriodicalIF":5.3,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143349219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The SWOT analysis of China's strategy for addressing marine plastic pollution in the context of global plastic treaty negotiations

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

Marine pollution bulletin

Pub Date : 2025-02-08 DOI: 10.1016/j.marpolbul.2025.117653

Xin Zhou , Bohan Xu

Marine plastic pollution poses a severe threat to the environment and human society, demanding urgent global action. However, efforts are hindered by fragmented legal frameworks, unclear responsibilities, and weak enforcement. The ongoing negotiations on the Draft International Legally Binding Instrument on Plastic Pollution, hereinafter referred to as the “Global Plastic Treaty”, may present a potential breakthrough. However, significant differences persist, and by December 2024, negotiations have stalled. This paper uses SWOT analysis to assess China's strategy and role in tackling the marine plastic pollutions and its position in the current negotiations. Strengths include its policy experience, industrial capacity, and governance potential, while weaknesses include regional disparities and technological gaps. China faces opportunities for international cooperation but also challenges in compliance and trade. It should leverage its industrial strengths, pursue technological advancements, and seek global cooperation to tackle marine plastic pollution effectively. In negotiations, China should uphold the principle of common but differentiated responsibilities and advocate for the regulation of plastic products based on their hazard classification.

{"title":"The SWOT analysis of China's strategy for addressing marine plastic pollution in the context of global plastic treaty negotiations","authors":"Xin Zhou , Bohan Xu","doi":"10.1016/j.marpolbul.2025.117653","DOIUrl":"10.1016/j.marpolbul.2025.117653","url":null,"abstract":"<div><div>Marine plastic pollution poses a severe threat to the environment and human society, demanding urgent global action. However, efforts are hindered by fragmented legal frameworks, unclear responsibilities, and weak enforcement. The ongoing negotiations on the Draft International Legally Binding Instrument on Plastic Pollution, hereinafter referred to as the “Global Plastic Treaty”, may present a potential breakthrough. However, significant differences persist, and by December 2024, negotiations have stalled. This paper uses SWOT analysis to assess China's strategy and role in tackling the marine plastic pollutions and its position in the current negotiations. Strengths include its policy experience, industrial capacity, and governance potential, while weaknesses include regional disparities and technological gaps. China faces opportunities for international cooperation but also challenges in compliance and trade. It should leverage its industrial strengths, pursue technological advancements, and seek global cooperation to tackle marine plastic pollution effectively. In negotiations, China should uphold the principle of common but differentiated responsibilities and advocate for the regulation of plastic products based on their hazard classification.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"213 ","pages":"Article 117653"},"PeriodicalIF":5.3,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143372601","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

Chemical fractionation and risk assessment of metals in drill cuttings from onshore and offshore oil and gas wells

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

Marine pollution bulletin

Pub Date : 2025-02-08 DOI: 10.1016/j.marpolbul.2025.117635

Paola Cristiane de Costa de Azevedo, Sindy Raquel Krzyzaniak, Bruno Luís Ferreira, Morgana Lurdes da Rocha, Luiz Augusto dos Santos Madureira, Diego Galvan, Eduardo Sidinei Chaves

The chemical fractionation and environmental risk of Ba, Co, Cu, Mn, Mo, Ni, and Pb were evaluated in drill cuttings (DCs) from onshore and offshore oil and gas exploration wells at different depths. The metal concentration in each fraction was determined using inductively coupled plasma mass spectrometry (ICP-MS) after employing the Community Bureau of Reference (BCR) sequential extraction procedure. The method's accuracy was assessed by analyzing a certified reference material, in which the recovery concentrations after the fractionation ranged from 81.9% to 125%. In both onshore and offshore wells, Ba and Mn had higher contents in DCs. The metal determination for the onshore well was mainly found in the F4 fraction (after acid digestion). For the offshore well, the main metal determination was in the F2 fraction (iron and manganese oxides) and the F3 fraction (organic matter). Multivariate analysis revealed that, in offshore samples evaluated at different depths, the extraction medium exerts a greater influence on metal availability than the geochemical behavior of the samples as a function of depth. On the other hand, the opposite behavior was observed in onshore samples. The environmental analysis of the samples indicated high contamination, particularly for Ba, Mn, and Pb, while the cumulative metal pollution was associated with the depth of the wells.

{"title":"Chemical fractionation and risk assessment of metals in drill cuttings from onshore and offshore oil and gas wells","authors":"Paola Cristiane de Costa de Azevedo, Sindy Raquel Krzyzaniak, Bruno Luís Ferreira, Morgana Lurdes da Rocha, Luiz Augusto dos Santos Madureira, Diego Galvan, Eduardo Sidinei Chaves","doi":"10.1016/j.marpolbul.2025.117635","DOIUrl":"10.1016/j.marpolbul.2025.117635","url":null,"abstract":"<div><div>The chemical fractionation and environmental risk of Ba, Co, Cu, Mn, Mo, Ni, and Pb were evaluated in drill cuttings (DCs) from onshore and offshore oil and gas exploration wells at different depths. The metal concentration in each fraction was determined using inductively coupled plasma mass spectrometry (ICP-MS) after employing the Community Bureau of Reference (BCR) sequential extraction procedure. The method's accuracy was assessed by analyzing a certified reference material, in which the recovery concentrations after the fractionation ranged from 81.9% to 125%. In both onshore and offshore wells, Ba and Mn had higher contents in DCs. The metal determination for the onshore well was mainly found in the F4 fraction (after acid digestion). For the offshore well, the main metal determination was in the F2 fraction (iron and manganese oxides) and the F3 fraction (organic matter). Multivariate analysis revealed that, in offshore samples evaluated at different depths, the extraction medium exerts a greater influence on metal availability than the geochemical behavior of the samples as a function of depth. On the other hand, the opposite behavior was observed in onshore samples. The environmental analysis of the samples indicated high contamination, particularly for Ba, Mn, and Pb, while the cumulative metal pollution was associated with the depth of the wells.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"213 ","pages":"Article 117635"},"PeriodicalIF":5.3,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143348800","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

Occurrence, source, and microbial-driven fate of aliphatic and polycyclic aromatic hydrocarbons in sediments in the Magellan seamount region

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

Marine pollution bulletin

Pub Date : 2025-02-08 DOI: 10.1016/j.marpolbul.2025.117645

Lingbo Jiang , Feng Zeng , Guoquan Wang , Zhaochao Deng , Hanghai Zhou , Chunlei Chen , Qinglin Mu , Kuiyong Bu , Shaoxiong Zhou , Chunfang Zhang , Yifei Dai

Deep-sea sediments, like those in the Mariana Basin, hold various contaminants, including petroleum hydrocarbons. However, little is known about their distribution, potential risks, sources, and fate. This study analyzed 38 surface sediments and 3 sediment cores, finding ∑n-alkanes and ∑PAHs concentrations at 705.43 ± 22.93 and 37.73 ± 1.62 ng/g dw, respectively. Hydrocarbons posed minimal risks and likely originated from aquatic (n-alkanes) and pyrogenic (PAHs) sources. Microbial activity, especially in deeper layers, influenced hydrocarbon degradation, with the deepest layer showing the highest degradation potential, highlighting microbial roles in hydrocarbon transformation in deep-sea sediments. Overall, this work carries out the sources, hazards, and biological removal of hydrocarbons from deep-sea sediments and facilitates the exploration of the life cycle of organic pollutants in extreme environments.

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引用次数: 0

Alteration of shoreline in a macrotidal setting induced by rising sea level: A case study of Purba Medinipur coastal stretch

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

Marine pollution bulletin

Pub Date : 2025-02-08 DOI: 10.1016/j.marpolbul.2025.117657

Sanjib Majumder , Ruqaiya Fatma

Progression in coastal morphological dynamics over centuries to millennia is associated with severe problems of coastal ecosystems and the sustainability of local coastal communities worldwide. Although coastal management strategies have been implemented in various places to understand regional variations, monitoring a specific phenomenon efficiently remains challenging for researchers. This study documented an in-depth assessment of changing coastal morphodynamics along the Purba Medinipur coastal stretch over 51 years (1972–2023) based on multi–temporal satellite images. The findings suggest that dominant erosional activities have taken place along unprotected areas of Shankarpur, Tajpur and Mandarmani, whereas, the accretional activities dominate the Junput, Haripur and Bankiput sectors. Natural and anthropogenic interferences such as extreme storms, modification in sediment budgets, construction of coastal protective structures, storm surges, and clearing of mangroves have interrupted the natural morphological processes. This pronounced trend in coastal erosion could be intensified through frequent extreme events under a changing climate along with Sea Level Rise (SLR).

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引用次数: 0

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