Microplastics (MPs), commonly defined as particles less than 5 mm, are a persistent ubiquitous anthropogenic contaminant that can be found in every environment, making it a global environmental, health, and socioeconomic problem. Due to their high surface area, MPs adsorb toxic pollutants that become bioavailable to organisms upon ingestion as they are often mistaken for food leading to biomagnification (Bule et al., 2020). The sampling area represents the lower part of the Krka River Estuary and is under direct anthropogenic influence from the city of Šibenik runoff waters, nautical and communal ports, city harbor, tourism, mariculture, and fishing. Estuaries and harbors have been recognized as hotspots and transfer pathways for MPs primarily because of the vicinity of the urban environment that emits contaminants from various sources (Miller et al., 2021). The main focus of this research was to determine MPs size, shape, color, surface area, and abundance in surface water using volume-reduced samples collected by a net. Laboratory protocol included sieving, wet peroxidation (H2O2), density separation (saturated NaCl solution), sonication, and filtration. Filter papers were then visually inspected for MPs. Image processing and measurements were carried out with ImageJ/Fiji open-source software.
微塑料(MPs)通常被定义为小于5毫米的颗粒，是一种持续存在的、无处不在的人为污染物，可以在任何环境中找到，使其成为一个全球性的环境、健康和社会经济问题。由于其高表面积，MPs吸附有毒污染物，这些污染物在摄入后成为生物可利用的，因为它们经常被误认为是食物，导致生物放大(blue等人，2020)。采样区位于库尔卡河河口下游，受到城市Šibenik径流水域、航海和公共港口、城市港口、旅游、海水养殖和渔业的直接人为影响。河口和港口被认为是MPs的热点和转移途径，主要是因为附近的城市环境会排放各种来源的污染物(Miller et al.， 2021)。本研究的主要重点是确定MPs的大小，形状，颜色，表面积和丰度在地表水使用减少体积的样品收集的网。实验方案包括筛分、湿过氧化(H2O2)、密度分离(饱和NaCl溶液)、超声和过滤。然后目视检查滤纸是否有MPs。图像处理和测量采用ImageJ/Fiji开源软件。
{"title":"Microplastics assessment in\u0000the Krka river estuary surface water","authors":"Marija Parać, N. Cukrov, T. Bulat, N. Cukrov","doi":"10.37023/ee.9.1-2.4","DOIUrl":"https://doi.org/10.37023/ee.9.1-2.4","url":null,"abstract":"Microplastics (MPs), commonly defined as particles less than 5 mm, are a persistent ubiquitous anthropogenic contaminant that can be found in every environment, making it a global environmental, health, and socioeconomic problem. Due to their high surface area, MPs adsorb toxic pollutants that become bioavailable to organisms upon ingestion as they are often mistaken for food leading to biomagnification (Bule et al., 2020). The sampling area represents the lower part of the Krka River Estuary and is under direct anthropogenic influence from the city of Šibenik runoff waters, nautical and communal ports, city harbor, tourism, mariculture, and fishing. Estuaries and harbors have been recognized as hotspots and transfer pathways for MPs primarily because of the vicinity of the urban environment that emits contaminants from various sources (Miller et al., 2021). The main focus of this research was to determine MPs size, shape, color, surface area, and abundance in surface water using volume-reduced samples collected by a net. Laboratory protocol included sieving, wet peroxidation (H2O2), density separation (saturated NaCl solution), sonication, and filtration. Filter papers were then visually inspected for MPs. Image processing and measurements were carried out with ImageJ/Fiji open-source software.","PeriodicalId":50518,"journal":{"name":"Environmental & Engineering Geoscience","volume":"99B 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88741487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-02-09DOI: 10.1201/9781003231264-18
S. Verma, V. Kanwar, S. John
{"title":"Construction of Sewers","authors":"S. Verma, V. Kanwar, S. John","doi":"10.1201/9781003231264-18","DOIUrl":"https://doi.org/10.1201/9781003231264-18","url":null,"abstract":"","PeriodicalId":50518,"journal":{"name":"Environmental & Engineering Geoscience","volume":"3 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86626417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-02-09DOI: 10.1201/9781003231264-34
S. Verma, V. Kanwar, S. John
{"title":"Introduction to Solid Waste","authors":"S. Verma, V. Kanwar, S. John","doi":"10.1201/9781003231264-34","DOIUrl":"https://doi.org/10.1201/9781003231264-34","url":null,"abstract":"","PeriodicalId":50518,"journal":{"name":"Environmental & Engineering Geoscience","volume":"79 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85756837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Water Quality and Treatment","authors":"S. Verma, V. Kanwar, S. John","doi":"10.1201/9781003231264-5","DOIUrl":"https://doi.org/10.1201/9781003231264-5","url":null,"abstract":"","PeriodicalId":50518,"journal":{"name":"Environmental & Engineering Geoscience","volume":"72 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84095339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sources of Water Supply","authors":"S. Verma, V. Kanwar, S. John","doi":"10.1201/9781003231264-2","DOIUrl":"https://doi.org/10.1201/9781003231264-2","url":null,"abstract":"","PeriodicalId":50518,"journal":{"name":"Environmental & Engineering Geoscience","volume":"8 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85207580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-02-09DOI: 10.1201/9781003231264-31
S. Verma, V. Kanwar, S. John
{"title":"Sources of Air Pollution","authors":"S. Verma, V. Kanwar, S. John","doi":"10.1201/9781003231264-31","DOIUrl":"https://doi.org/10.1201/9781003231264-31","url":null,"abstract":"","PeriodicalId":50518,"journal":{"name":"Environmental & Engineering Geoscience","volume":"74 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74236259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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