Microplastics and nanoplastics最新文献_第4页

Recent Advances in Microplastics Removal from Water with Special Attention Given to Photocatalytic Degradation: Review of Scientific Research 以光催化降解为重点的水中微塑料去除研究进展

Microplastics and nanoplastics Pub Date : 2023-09-04 DOI: 10.3390/microplastics2030023

N. Sacco, F. M. Zoppas, Alejandra Devard, María del Pilar González Muñoz, Gonzalo García, F. A. Marchesini

{"title":"Recent Advances in Microplastics Removal from Water with Special Attention Given to Photocatalytic Degradation: Review of Scientific Research","authors":"N. Sacco, F. M. Zoppas, Alejandra Devard, María del Pilar González Muñoz, Gonzalo García, F. A. Marchesini","doi":"10.3390/microplastics2030023","DOIUrl":"https://doi.org/10.3390/microplastics2030023","url":null,"abstract":"Microplastic pollution has become a global environmental concern with detrimental effects on ecosystems and human health. Effective removal of microplastics from water sources is crucial to mitigate their impacts. Advanced oxidative processes (AOPs) have emerged as promising strategies for the degradation and elimination of microplastics. This review provides a comprehensive overview of the application of AOPs in the removal of microplastics from water. Various AOPs, such as photocatalysis, ozonation, and Fenton-like processes, have shown significant potential for microplastic degradation. These processes generate highly reactive species, such as hydroxyl radicals, which can break down microplastics into smaller fragments or even mineralize them into harmless byproducts. The efficiency of photocatalytic oxidation depends on several factors, including the choice of photocatalysts, reaction conditions, and the physicochemical properties of microplastics. Furthermore, this review discusses the challenges associated with photocatalytic oxidation, such as the need for optimization of operating parameters and the potential formation of harmful byproducts. Overall, photocatalytic oxidation offers a promising avenue for the removal of microplastics from water, contributing to the preservation of aquatic ecosystems and safeguarding human health. However, further research is needed to address the limitations and optimize the implementation of this process for effective and sustainable microplastic remediation.","PeriodicalId":74190,"journal":{"name":"Microplastics and nanoplastics","volume":"74 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91154203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mind the gap: forest soils as a hidden hub for global micro- and nanoplastic pollution 注意差距:森林土壤是全球微塑料和纳米塑料污染的隐藏中心

Microplastics and nanoplastics Pub Date : 2023-09-01 DOI: 10.1186/s43591-023-00067-1

Collin J. Weber, Matthias C. Rillig, Moritz Bigalke

引用次数: 0

Detection of Secondary Microplastics in an Aquatic Mesocosm by Means of Object-Based Image Analysis 基于目标的图像分析方法检测水生环境中次生微塑料

Microplastics and nanoplastics Pub Date : 2023-08-07 DOI: 10.3390/microplastics2030022

Dahlia E. Carmona-Valdivieso, T. Valdivieso, V. Carmona-Galindo

{"title":"Detection of Secondary Microplastics in an Aquatic Mesocosm by Means of Object-Based Image Analysis","authors":"Dahlia E. Carmona-Valdivieso, T. Valdivieso, V. Carmona-Galindo","doi":"10.3390/microplastics2030022","DOIUrl":"https://doi.org/10.3390/microplastics2030022","url":null,"abstract":"When plastics are discarded, they do not biodegrade and instead break down over time into progressively smaller particles, termed secondary microplastics, which adversely impact biota and human health as well as persist in the environment for centuries. Our research objective was to evaluate the capabilities of object-based image analyses in detecting compositionally varied microplastics suspended in an aquatic mesocosm under no-slip and turbulent water conditions. We found that the presence of polypropylene, polyethylene terephthalate, and low-density polyethylene microplastic pollution in both single-type and mixed-type suspensions was not detectable by either average red (R), average blue (B), average green (G), or average RBG pixel intensities, but was significantly detectable by means of total RBG pixel intensity from digital imagery of the surface-water. Our findings suggest that object-based image analyses of surface waters to quantify pixel information is better suited for monitoring the presence and absence of suspended microplastics, rather than for the stepwise determination of microplastic concentrations. We propose the development of a smartphone application to facilitate citizen-science monitoring of microplastic contamination as well as comment on future applications utilizing drone imagery to boost cloud-based mapping spatiotemporal plumes.","PeriodicalId":74190,"journal":{"name":"Microplastics and nanoplastics","volume":"73 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85939277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Characterization of Microplastics and Mesoplastics and Presence of Biofilms, Collected in the Gualí Wetland Cundinamarca, Colombia 哥伦比亚Cundinamarca Gualí湿地中微塑料和中塑料的特征及生物膜的存在

Microplastics and nanoplastics Pub Date : 2023-08-01 DOI: 10.3390/microplastics2030021

Maria Alejandra Porras-Rojas, Cristina Charry-Vargas, Jorge Leonardo Muñoz-Yustres, Paula Martínez-Silva, Luis David Gómez-Méndez

{"title":"Characterization of Microplastics and Mesoplastics and Presence of Biofilms, Collected in the Gualí Wetland Cundinamarca, Colombia","authors":"Maria Alejandra Porras-Rojas, Cristina Charry-Vargas, Jorge Leonardo Muñoz-Yustres, Paula Martínez-Silva, Luis David Gómez-Méndez","doi":"10.3390/microplastics2030021","DOIUrl":"https://doi.org/10.3390/microplastics2030021","url":null,"abstract":"Wetlands are being contaminated by housing developments, effluents, industrial areas, and poor sanitation, resulting in the presence of plastic polymers and the development of biofilms on these materials, which represent an elevated risk to freshwater fauna and flora. The objective of this study was to characterize mesoplastics and microplastics, collected in the Gualí Wetland, Colombia, as well as to verify the presence of biofilms on such polymers. Nine water samples (36 L per sample) were evaluated at three points of the wetland; the size of the particles was determined by image analysis, the type of polymer through FTIR, and the presence of biofilms by microscopy. A total of 79 items/0.135 m3 were collected, 2 macroplastic items, 53 mesoplastic items, and 24 microplastic items. The presence of fragments (70%) and pellets (41%), with transparent (40%) and white (30%) being the predominant ones, was outstanding. Among the polymers, high-density polyethylene (HDPE) dominated, followed by expanded polystyrene. The results of SEM demonstrated the presence of diatoms on the surface of the plastic polymers. Furthermore, the results showed a greater amount of HDPE mesoplastics and microplastics in the shape of fragments and pellets. In addition, the presence of biofilms on these plastic particles can increase the adsorption of contaminants, negatively affecting this ecosystem. The outcome of this study can be used to identify bacteria that reside in biofilms associated with microplastics and mesoplastics.","PeriodicalId":74190,"journal":{"name":"Microplastics and nanoplastics","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135931576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A practical primer for image-based particle measurements in microplastic research 用于微塑料研究中基于图像的颗粒测量的实用引物

Microplastics and nanoplastics Pub Date : 2023-08-01 DOI: 10.1186/s43591-023-00064-4

U. Schnepf, Maria Anna Lioba von Moers-Meßmer, F. Brümmer

引用次数: 0

Microplastics in Lampanyctus crocodilus (Risso 1810, Myctophidae), a Common Lanternfish Species from the Ibiza Channel (Western Mediterranean) 伊比沙海峡(西地中海)常见灯笼鱼——Lampanyctus crocodilus (Risso 1810, Myctophidae)的微塑料研究

Microplastics and nanoplastics Pub Date : 2023-07-18 DOI: 10.3390/microplastics2030020

Olga Novillo-Sanjuan, Sergio Gallén, J. Raga, J. Tomás

{"title":"Microplastics in Lampanyctus crocodilus (Risso 1810, Myctophidae), a Common Lanternfish Species from the Ibiza Channel (Western Mediterranean)","authors":"Olga Novillo-Sanjuan, Sergio Gallén, J. Raga, J. Tomás","doi":"10.3390/microplastics2030020","DOIUrl":"https://doi.org/10.3390/microplastics2030020","url":null,"abstract":"Microplastics’ presence in the pelagic environment is still largely unknown due to the difficulty of sampling in this part of the ocean. In this study, we quantify microplastics’ exposure in a pelagic lanternfish species from the western Mediterranean, Lampanyctus crocodilus (Risso 1810), which occupies an intermediate position in the marine food web. L. crocodilus were captured in the Ibiza Channel by a trawling vessel and microplastics were extracted by digestion of their gastrointestinal systems. Almost half of the analysed lanternfish contained microplastics, mostly blue and black fibres (40.9% and 34.66%, respectively). In fishes with at least one microplastic, the median was 3 MPs/fish (CI 95% = 3.46–6.8), similar to other studies performed in other fish species in the area. Biometric parameters of fish, such as total length and body condition, were not correlated with the number of microplastics. Data presented here contribute to quantifying the severity of microplastic pollution in the pelagic environment and in a wild, non-commercial species.","PeriodicalId":74190,"journal":{"name":"Microplastics and nanoplastics","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88178409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microplastics on Beaches in the Nautla-Vega de Alatorre Turtle Nesting Area, Veracruz 韦拉克鲁斯州纳特拉-维加德阿拉托雷海龟筑巢区海滩上的微塑料

Microplastics and nanoplastics Pub Date : 2023-07-14 DOI: 10.3390/microplastics2030019

C. I. Ruíz-Reyes, F. Lango-Reynoso, M. Castañeda-Chávez, Ángel Morán-Silva

{"title":"Microplastics on Beaches in the Nautla-Vega de Alatorre Turtle Nesting Area, Veracruz","authors":"C. I. Ruíz-Reyes, F. Lango-Reynoso, M. Castañeda-Chávez, Ángel Morán-Silva","doi":"10.3390/microplastics2030019","DOIUrl":"https://doi.org/10.3390/microplastics2030019","url":null,"abstract":"The low cost of production and the widespread use of plastics has brought about a problem that is difficult to measure; microplastics are considered emerging pollutants because their presence can pose a risk to the environment. This study focuses on the characterization of microplastics (MPs) in the nesting area of green (Chelonia mydas) and Kemp’s ridley (Lepidochelys kempii) sea turtles, on the coastal municipalities of Nautla and Vega de Alatorre, Veracruz, Mexico. Five beaches along 15.5 km of coastline were analyzed and samples were taken in the intertidal zone. In this work, only microplastics in sizes from one to five mm were analyzed. A characterization of the potential sources of microplastics at the basin level was carried out and 94% of the samples analyzed presented MPs, the greatest amount was at site Playa Navarro (B32) (1.2 Item/kg dw), and in the high tide zone (4.86 ± 2.79 Item/kg dw). The predominant color of the MPs was white (42%), the most representative form were fragments (31%), while most of the MPs presented sizes of 4–5 mm (35%) followed by 1–2 mm (34%). The chemical composition of most of the MPs was polyethylene (55%). Regarding the sources of the MPs generation, livestock, agriculture, fishing, tourism, wastewater discharges, urban solid waste and, to a lesser extent, the plastic industry were identified. The mobilization factors of the MPs turned out to be the Colipa and Misantla rivers with runoff from the basin, wind, waves and marine currents.","PeriodicalId":74190,"journal":{"name":"Microplastics and nanoplastics","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84289238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Status quo of operation procedures for soil sampling to analyze microplastics 土壤取样分析微塑料的操作程序现状

Microplastics and nanoplastics Pub Date : 2023-07-13 DOI: 10.1186/s43591-023-00063-5

Kristof Dorau, M. Hoppe, Daniel Rückamp, J. Köser, G. Scheeder, Katrin Scholz, E. Fries

引用次数: 0

Tyre and road wear particles from source to sea 从源头到海洋的轮胎和道路磨损颗粒

Microplastics and nanoplastics Pub Date : 2023-07-03 DOI: 10.1186/s43591-023-00060-8

K. Mattsson, Juliana Aristéia de Lima, T. Wilkinson, Ida Järlskog, Elisabet Ekstrand, Yvonne Andersson Sköld, M. Gustafsson, M. Hassellöv

引用次数: 2

Preliminary Assessment into the Prevalence and Distribution of Microplastics in North and South Pacific Island Beaches 北太平洋和南太平洋岛屿海滩微塑料流行和分布的初步评估

Microplastics and nanoplastics Pub Date : 2023-06-29 DOI: 10.3390/microplastics2030018

M. Bleszynski, E. Clark

{"title":"Preliminary Assessment into the Prevalence and Distribution of Microplastics in North and South Pacific Island Beaches","authors":"M. Bleszynski, E. Clark","doi":"10.3390/microplastics2030018","DOIUrl":"https://doi.org/10.3390/microplastics2030018","url":null,"abstract":"Microplastic pollution has become an increasing danger to marine wildlife and ecosystems worldwide. The continued increase in the production of plastic products has caused microplastic pollution to become more distributed, especially along shorelines. Therefore, to better assess the pervasiveness of microplastics around the Pacific Islands, in this work, we conducted a preliminary investigation into the pervasiveness of microplastics along eight different North and South Pacific Island beaches located in New Zealand and Hawaii. Microplastic prevalence was investigated as a function of beach location, sand type, and microplastic type. Our analysis found that all eight locations contained some level of microplastics, and sheltered fine-grained sand beaches contained the highest level of microplastics, with the largest particle size distribution. In addition, spectroscopy analysis was conducted to assess the plastic type, which showed that nylon and polypropylene were the most common types of microplastics among the tested samples. The results of this study offer a preliminary insight into the microplastic accumulation among different beaches, indicating that sheltered fine-grained beaches and ecosystems may be more susceptible to microplastic accumulation.","PeriodicalId":74190,"journal":{"name":"Microplastics and nanoplastics","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91013386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0