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PREPARATION, CHARACTERIZATION OF BIOCHAR FOR A SUSTAINABLE SOIL HEALTH 可持续土壤健康生物炭的制备和表征
Pub Date : 2021-01-01 DOI: 10.53390/ijes.v12i1.6
R. A, Vidhya A.
Recent research suggests that biochar is a promising approach to minimize soil contamination caused by heavy metals and organic pollutants. It is also involved in the amendment of soil by altering the nutrients, pH and other factors. Through intensive literature review, this paper was aimed to better understand the selection of feedstock processes, preparation, and characterization of biochar. Wide variety of feedstock used for the biochar production based on the cost effectiveness, ease availability and they are ecofriendly to the environment. Among the thermochemical processes, pyrolysis is the promising techniques followed for the production of BC. The stabilization efficacy was mainly determined by cation exchange capacity, pH, and ash content of the biochar. The physicochemical characteristic of the biochar is analyzed using various methods such as SEM, FTIR, TGA and BET analysis. The surface area plays a major role in the metal sorption. The quality characteristics of biochar as a soil amendment varied greatly with the feedstock materials and the pyrolysis conditions. Biochar plays a great role in increasing the pH which helps the acidic soil region and its high-water retention capacity enhance the moisture level in the soil which enhances the microbial communities and its activity. Biochar becomes stabilized in the soil by interacting with soil particles. The inherent characteristics of the biochar as dictated by feedstock and pyrolysis conditions, interact with climatic conditions such as precipitation and temperature to influence how long biochar carbon remains stored in the soil. Due to its carbon sequestration in the soil, it helps in increasing the fertility of the soil and also enhances the crop yield.
最近的研究表明,生物炭是一种很有前途的方法,可以最大限度地减少重金属和有机污染物对土壤的污染。它还通过改变土壤的养分、pH值和其他因素来修正土壤。通过大量的文献综述,本文旨在更好地了解生物炭的原料选择、制备和表征。基于成本效益,易于获得和对环境友好的基础上,各种各样的原料用于生物炭生产。在热化学过程中,热解是最有前途的生产BC的技术。生物炭的稳定效果主要受阳离子交换量、pH和灰分含量的影响。利用扫描电镜(SEM)、红外光谱(FTIR)、热重分析(TGA)和BET分析等多种方法对生物炭的理化特性进行了分析。表面积对金属的吸附起着重要的作用。生物炭作为土壤改良剂,其质量特性随原料和热解条件的不同而有较大差异。生物炭具有提高土壤pH值的作用,有利于酸性土壤,其高保水能力提高了土壤水分水平,增强了土壤微生物群落及其活性。生物炭通过与土壤颗粒的相互作用在土壤中变得稳定。生物炭的固有特性由原料和热解条件决定,与降水和温度等气候条件相互作用,影响生物炭碳在土壤中储存的时间。由于其在土壤中的固碳作用,它有助于提高土壤的肥力,也提高了作物的产量。
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引用次数: 0
ASSESSMENT OF GROUNDWATER QUALITY FOR DRINKING PURPOSE IN CHARKHI DADRI BLOCK IN CHARKHI DADRI DISTRICT, HARYANA 哈里亚纳邦charkhi dadri地区charkhi dadri区块饮用水水质评价
Pub Date : 2021-01-01 DOI: 10.53390/ijes.v12i1.8
Anup Kumar, H. Himanshu, Satish Kumar, V. Arya
Water is important for living organisms on the Earth. Present development activities have put pressure on water resources. Groundwater is under more stress because of high exploitation for drinking, irrigation and industrial purposes. In the arid to semi-arid climatic zones groundwater is very important for sustaining day to day activities and agriculture and industrial purposes. The present study area Charkhi Dadri block in Charkhi Dadri district, Haryana was selected to 0 0 study groundwater quality for drinking purpose. The geo-coordinates of the study area are latitudes 28.49 N to 28.70 N 0 0 and longitudes 76.05 E to 76.47 E and covers an area of 396.57 sq. km. In the study area ten groundwater samples were collected in double capped 250 ml plastic bottles. Geo-coordinates of the sample locations were noted using mobile GPS. Chemical analysis of all the ten groundwater samples were done using Tamilnadu Water Supply and Drainage Board (TWAD), Chennai prepared Field Water Testing kit for twelve chemical parameters viz. pH, alkalinity, hardness, chloride, total dissolved solids (TDS), fluoride, iron, nitrite, nitrate, ammonia, phosphate and residual chlorine. Chemical analysis results were entered in excel software and prepared bar graphs. Result of groundwater samples analysis were compared with BIS (IS 10500:2012) drinking water standard to know the suitability of groundwater for drinking purpose. The study shows that pH ranges 7 to 8, alkalinity 200 mg/l to 450 mg/l, hardness 130 mg/l to 800 mg/l, chloride 40 mg/l to 1200 mg/l, TDS 552 mg/l to 2820 mg/l, fluoride 0.5 mg/l to 5 mg/l, iron nil to 0.3 mg/l, ammonia nil to 1 mg/l, nitrite 0.2 mg/l to 1 mg/l, nitrate 45 mg/l to 100 mg/l, phosphate nil in all the ten groundwater samples and residual chlorine nil to 0.2 mg/l. The study is highly useful for planning and monitoring of groundwater for drinking purpose in the study area.
水对地球上的生物很重要。目前的发展活动对水资源造成了压力。由于饮用、灌溉和工业用途的大量开采,地下水面临更大的压力。在干旱至半干旱气候带,地下水对维持日常活动以及农业和工业用途非常重要。本研究区选取哈里亚纳邦Charkhi Dadri区的Charkhi Dadri区块进行饮用水水质研究。研究区地理坐标为北纬28.49 ~ 28.70°0,经度76.05 ~ 76.47°E,面积396.57 sq。公里。在研究区收集了10份地下水样品,装在250毫升的双盖塑料瓶中。使用移动GPS记录样本位置的地理坐标。使用泰米尔纳德邦供水和排水委员会(TWAD)制备的现场水测试试剂盒对所有10个地下水样本进行了化学分析,包括pH、碱度、硬度、氯化物、总溶解固体(TDS)、氟化物、铁、亚硝酸盐、硝酸盐、氨、磷酸盐和余氯等12个化学参数。化学分析结果在excel软件中录入,并制作条形图。将地下水样品分析结果与BIS (IS 10500:2012)饮用水标准进行比较,了解地下水的饮用适宜性。研究表明,10个地下水样品的pH值为7 ~ 8,碱度为200 ~ 450 mg/l,硬度为130 ~ 800 mg/l,氯化物为40 ~ 1200 mg/l, TDS为552 ~ 2820 mg/l,氟化物为0.5 ~ 5mg /l,铁为0.3 mg/l,氨为1 mg/l,亚硝酸盐为0.2 mg/l ~ 1 mg/l,硝酸盐为45 mg/l ~ 100 mg/l,磷酸盐为0,余氯为0.2 mg/l。该研究对研究区饮用地下水的规划和监测具有重要意义。
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引用次数: 0
ECOLOGICAL RESTORATION OF EARTH'S ECOSYSTEM AND THE DECADE OF ECOSYSTEM RESTORATION 地球生态系统的生态恢复与生态系统恢复十年
Pub Date : 2021-01-01 DOI: 10.53390/ijes.v12i2.5
D. Patra, S. Basu
Restoration ecology has demonstrated an astounding growth as a new discipline of applied science, since its emergence in the past decades. Future-aimed restoration should acknowledge the changing and unpredictable environment of the future, assume the dynamic nature of ecological communities with multiple trajectories, and connect landscape elements for improving ecosystem functions and structures. Ecosystem loss is depriving the world of carbon sinks, like forests and wetlands, at a time when humanity can least afford it. Ecosystem restoration aims to repair some damage done to the environment and regain ecological functionality. The United Nations (UN) recently declared 2021 to 2030 the Decade on Ecosystem Restoration- a global mission to revive billions of hectares, from forests to farmlands, from the top of mountains to the depth of the sea. The path to a more sustainable use of ecosystems must begin with the development of inclusive wealth measures which capture natural, social, human and manufactured capital and are thus more accurate ways to measure economic progress.
恢复生态学作为一门新兴的应用科学学科,在过去的几十年里取得了惊人的发展。面向未来的修复应认识到未来环境的变化和不可预测,假设生态群落具有多轨迹的动态性,并连接景观要素以改善生态系统的功能和结构。生态系统的丧失正在剥夺世界上的碳汇,比如森林和湿地,而这是人类最无力承担的。生态系统修复的目的是修复环境受到的某些损害,恢复生态功能。联合国最近宣布2021年至2030年为“生态系统恢复十年”,这是一项恢复数十亿公顷土地的全球使命,从森林到农田,从山顶到海洋深处。更可持续地利用生态系统的道路必须从制定全面的财富衡量标准开始,这些衡量标准涵盖自然、社会、人力和制造资本,因此是衡量经济进步的更准确方法。
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引用次数: 0
DISTRIBUTION AND COLLECTION PATTERN OF PICRORHIZA KURROOA MEDICINAL PLANT SPECIES OF NEPAL 尼泊尔药用植物小檗的分布与采集模式
Pub Date : 2021-01-01 DOI: 10.53390/ijes.v12i2.6
J. Sah, Mahesh Nepali
Medicinal flora is one of the important natural resources of Nepal. Picrorhiza kurrooa (Kutki) is a well-known medicinal herb found in high mountain of Nepal. The Kutki rhizomes have been widely used to cure indigestion problems in traditional medication systems. Very less information is available on its distribution and collection patterns, particularly from high mountain of mid-western of Nepal till date. The present research aimed to explore the distribution of Kutki and assess its collection pattern in Nepal. Primary data were collected through direct field survey and key informant interview. Atotal of 63 plots with each plot size of 5m×5m were laid out in the field to collect data. The stratified systematic sampling with sampling intensity 0.01% was adopted for distribution survey. The results revealed no significance difference in mean number of Kutki with respect to aspect (p>0.05), whereas there is significance difference in mean number of Kutki with respect to elevation (p<0.05). The distribution of Kutki was recorded between 3750m lower plot and 4831m at higher plot. The Important Value Index of Kutki was found 113.59 with relative frequency of 34.44%. The highest density of Kutki (7476.92 per hectare) was found on eastern aspect. Male participation was found higher than the female for collection of Kutki. Scientific harvesting technique should be adopted for sustainable management of Kutki in the study area.
药用植物群是尼泊尔重要的自然资源之一。藏红花是一种著名的药材,发现于尼泊尔的高山上。在传统的药物系统中,库特基根茎被广泛用于治疗消化不良问题。迄今为止,关于其分布和收集模式的资料非常少,特别是在尼泊尔中西部的高山地区。本研究旨在探讨库特基在尼泊尔的分布,并评估其收集模式。通过直接实地调查和关键信息提供者访谈收集第一手资料。野外共布置63个样地,每个样地大小为5m×5m。分布调查采用分层系统抽样,抽样强度为0.01%。结果显示,库特基平均数目与坡向无显著性差异(p>0.05),与海拔有显著性差异(p<0.05)。库特基分布在低地块3750m至高地块4831m之间。Kutki的重要价值指数为113.59,相对频率为34.44%。库特基密度以东侧最高,为7476.92只/公顷。男性对库特基的收集参与度高于女性。研究区库木的可持续管理应采用科学的采收技术。
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引用次数: 0
GROUNDWATER QUALITY ASSESSMENT FOR DRINKING PURPOSE IN BAUND BLOCK, CHARKHI DADRI DISTRICT, HARYANA 哈里亚纳邦charkhi dadri区邦德街区饮用水水质评价
Pub Date : 2021-01-01 DOI: 10.53390/ijes.v12i2.7
Anup Kumar, H. Himanshu, Satish Kumar, V. Arya
Water is important for survival of life on the planet Earth. In the present developmental activities water is excessively used in agriculture, industries, drinking and daily house hold activities. These has resulted in declining of groundwater depth and deterioration of groundwater quality. In the present study groundwater quality for drinking purpose has been assessed in Baund block of Charkhi Dadri district of Haryana. In the present study twelve groundwater samples were collected during field visit in the study area in double capped 250 ml plastic bottles and sample locations were taken with the help of mobile GPS. Groundwater samples were analyzed using Field Water Testing Kit prepared by Tamil Nadu Water Supply and Drainage (TWAD) Board, Chennai for twelve chemical parameters-pH, alkalinity, hardness, chloride, total dissolved solids (TDS), fluoride, iron, ammonia, nitrite, nitrate, phosphate, residual chlorine. Results of chemical analysis were entered in excel software and prepared bar graphs. Result of chemical analysis of groundwater samples were compared with BIS (IS 10500:2012) drinking water standards for drinking purpose. The study shows that pH ranges 6.5 to 7.5, alkalinity 150 mg/l to 550 mg/l, hardness 150 mg/l to 800 mg/l, chloride 50 mg/l to 1200 mg/l, TDS 600 mg/l to 2964 mg/l, iron nil to 3 mg/l, ammonia nil to 5 mg/l, nitrite 0.2 mg/l to 1 mg/l, nitrate 45 mg/l to 100 mg/l, phosphate nil in all the twelve groundwater samples and residual chlorine nil to 0.2 mg/l. The study is highly useful for planning and monitoring of groundwater quality for drinking purpose in the study area.
水对地球上生命的生存至关重要。在目前的发展活动中,水在农业、工业、饮用水和日常家庭活动中被过度使用。这些都导致地下水深度下降,地下水质量恶化。在本研究中,对哈里亚纳邦Charkhi Dadri地区的bund区块进行了饮用水水质评价。本研究在研究区实地考察中采集了12份地下水样品,装在250ml双盖塑料瓶中,并借助移动GPS定位样品位置。使用泰米尔纳德邦供水和排水(TWAD)委员会在金奈准备的现场水测试试剂盒分析地下水样品的12个化学参数:ph、碱度、硬度、氯化物、总溶解固体(TDS)、氟化物、铁、氨、亚硝酸盐、硝酸盐、磷酸盐、余氯。化学分析结果用excel软件录入,并制作条形图。地下水样品化学分析结果与BIS (IS 10500:2012)饮用水标准进行了比较。研究表明,12份地下水样品的pH值为6.5 ~ 7.5,碱度为150 ~ 550 mg/l,硬度为150 ~ 800 mg/l,氯化物为50 ~ 1200 mg/l, TDS为600 ~ 2964 mg/l,铁为3 mg/l,氨为5 mg/l,亚硝酸盐为0.2 mg/l ~ 1 mg/l,硝酸盐为45 mg/l ~ 100 mg/l,磷酸盐为0,余氯为0.2 mg/l。该研究对研究区饮用水水质的规划和监测具有重要意义。
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引用次数: 0
CONSTRUCTED WETLANDS FOR MUNICIPAL WASTEWATER TREATMENT: A SUSTAINABLE APPROACH 用于城市污水处理的人工湿地:一种可持续的方法
Pub Date : 2021-01-01 DOI: 10.53390/ijes.v12i2.4
Monali Mudulia, S. Ray
Water, the most valuable gift of nature is at a critical stage so called pollution, due to intense industrialization, urbanization and exponential population growth. Thus, a diagnosis that has the potential to cure that critical stage of water with no harmful impact on the other elements of nature is an utmost requirement now a days. Tremendous development in the field of research has suggested a number of treatment methods to get over water pollution. Constructed wetland (CW) an engineered unit that follows bio-geochemical approaches to heal the polluted stage of water with a significant pollutant removal efficiency, has stood first in the field of sustainable water treatment and technology. Not only water treatment through an eco-friendly manner but also creating an ecosystem with in that working area with aesthetic and economical production are the major reasons behind the popularity of this system. Selection of vegetation, substrate and construction of that system at a proper location are the limitation of constructed wetland. In this system sedimentation, filtration and adsorption through substrate, neutralization, and precipitations, phyto-accumulation of plant species and microbial remediation by microorganisms present in the rhizospheres of plants etc. are the processes that supports the treatment activity. This paper discusses various types of constructed wetlands and their mechanism and performance intended for municipal wastewater treatment. Besides it the paper covers the discussion regarding reusability of the treated water. This paper will help promote the wastewater treatment using CWs and further help to design and develop innovative hybrid technologies for sustainable wastewater treatment.
水是大自然最宝贵的礼物,由于工业化、城市化和人口指数增长,它正处于一个被称为污染的关键阶段。因此,一种有可能治愈水的关键阶段而不对自然的其他元素产生有害影响的诊断是当今最迫切的要求。研究领域的巨大发展已经提出了许多解决水污染的方法。人工湿地(CW)是一种采用生物地球化学方法修复水体污染阶段的工程单元,具有显著的污染物去除效率,在可持续水处理和技术领域处于领先地位。不仅通过生态友好的方式进行水处理,而且在工作区域内创造一个具有美学和经济生产的生态系统,这是该系统受欢迎的主要原因。植被的选择、基质的选择以及该系统在适当位置的构建是人工湿地的局限性。在这个系统中,沉淀、过滤和通过底物的吸附、中和和沉淀、植物物种的植物积累和植物根际微生物的微生物修复等是支持处理活性的过程。本文讨论了各种类型的人工湿地及其处理城市污水的机理和性能。此外,本文还对处理后水的再利用进行了探讨。本文将有助于促进废水处理的利用,并进一步帮助设计和开发可持续废水处理的创新混合技术。
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引用次数: 0
MOLECULAR AND BIOCHEMICAL CHARACTERIZATION OFSTAPHYLOCOCCUS PSEUDINTERMEDIUS FROM CANINEPYODERMA IN SHIVAMOGGA REGION OF KARNATAKA 卡纳塔克邦shivamogga地区犬表皮病假中间葡萄球菌的分子和生化特征
Pub Date : 2021-01-01 DOI: 10.53390/ijes.v12i1.2
P. M. K., Shambulingappa B E, S. S., K. A. M., Rudresh B H, M. C. B., A. S. J.
Shivamogga. Exudate/pus/lesion swabs were collected from clinical cases of canine pyoderma (n=126) and subjected to isolation and identification of bacterial isolates by phenotypic methods. The bacteriological processing of the samples resulted in the recovery of 95 staphylococcal isolates and 18 other bacterial isolates. On culture, staphylococci were the most predominantly (n=95, 75.39%) isolated organisms. The PCR was employed as molecular method in this study for the detection of species of staphylococcal isolates by targeting nuc gene and it was also used for the detection of virulence gene and antibiotic resistance gene in staphylococcal isolates by targeting siet gene and mecA gene, respectively, by using primers published earlier. One of the S. pseudintermedius isolates which confirmed by PCR and sequencing of partial nuc gene was used as positive reference strain for further screening of isolates by PCR. Based on nuc gene-based PCR, out of 95 staphylococcal isolates obtained, 82 (86.1%)of the isolates were found belonging to S. pseudintermedius. And out of 82 S. pseudintermedius isolates, siet gene was detected in 69 (86.1%) isolates. S. pseudintermedius was found to be predominant bacterial pathogen responsible for pyoderma in dogs.
Shivamogga。收集126例犬脓皮病患者的分泌物/脓液/病变拭子,采用表型法对分离菌进行分离鉴定。对样品进行细菌学处理,分离出95株葡萄球菌和18株其他细菌。在培养中,葡萄球菌是最主要的分离菌(n=95, 75.39%)。本研究采用PCR作为分子方法,通过靶向nuc基因检测葡萄球菌分离株的种类,并利用前期发表的引物分别靶向siet基因和mecA基因检测葡萄球菌分离株的毒力基因和耐药基因。以经PCR和部分nuc基因测序证实的1株假中间假葡萄球菌作为阳性对照菌株,进一步进行PCR筛选。基于nuc基因的PCR结果显示,95株葡萄球菌中82株(86.1%)属于假中间葡萄球菌。82株假中间杆菌分离株中检出siet基因69株(86.1%)。假中芽胞杆菌是引起犬脓皮病的主要病原菌。
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引用次数: 0
MAPPING AND MONITORING OF WETLAND ECOSYSTEMS: A CASE STUDY ON HARIKE AND KESHOPUR WETLAND OVER PUNJAB REGION, INDIA 湿地生态系统的制图与监测:以印度旁遮普地区哈里克和克舒普尔湿地为例
Pub Date : 2021-01-01 DOI: 10.53390/ijes.v11i1.6
M. Arora, Sashikanta Sahoo, S. Sharma, S. S. Hassan, Brijendra Pateria
Wetland plays a vital role in sustainable ecological development. They hold balanced environment conditions and filter the surface and sub-surface water and moderate the local weather condition. But now-a-days wetlands are shrinking quickly all over world due to climate change & anthropogenic activities and extinction of wetlands agitates the local environmental conditions with contexts to water and soil conditions. This study is mainly focused on climate change impacts on wetland ecosystems over Harike and Keshopur wetland in Punjab region, India. Harike wetland is one of largest wetland in northern part of India, which is designated as Ramsar site. The Landsat imageries and climate parameters (includes land surface temperature and rainfall) have been used to extract spatial and temporal information over wetlands during period from 2009 to 2020. Landsat data have been analysed in two phases: Pre-monsoon and Post-Monsoon. Wetland area has been classified into five different classes: agriculture, water, built-up, aquatic vegetation1, and aquatic vegetation2. These analyses showed that wetland area has been reduced over a period of ten years and much area has been converted in agricultural land and built-up. The intense anthropogenic activities have resulted more changes in the wetland over both regions. The present study specifies that wetland ecosystem monitoring is essential for policy makers for sustainable management and also concluded that the significant reduction of highly biodiversity wetland area is required to conserve.
湿地在生态可持续发展中具有重要作用。它们保持平衡的环境条件,过滤地表水和地下水,调节当地的天气条件。但由于气候变化和人类活动的影响,当今世界湿地正在迅速萎缩,湿地的消失搅动了当地的环境条件,并与水土条件有关。本文主要研究了气候变化对印度旁遮普地区Harike和Keshopur湿地生态系统的影响。哈里克湿地是印度北部最大的湿地之一,被指定为拉姆萨尔湿地。利用陆地卫星图像和气候参数(包括地表温度和降雨量)提取了2009 - 2020年湿地的时空信息。陆地卫星数据分两个阶段进行分析:季风前和季风后。湿地被划分为五个不同的类别:农业、水域、建筑、水生植被和水生植被。这些分析表明,近十年来,湿地面积不断减少,许多湿地已被农用地转化和建设。强烈的人为活动导致两区湿地的变化较大。本研究明确了湿地生态系统监测对决策者的可持续管理至关重要,并得出结论,需要大幅度减少高度生物多样性的湿地面积。
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引用次数: 0
Historical Drought Characterization in Awash River Basin, Ethiopia 埃塞俄比亚阿瓦什河流域历史干旱特征
Pub Date : 2020-10-27 DOI: 10.19080/IJESNR.2020.26.556186
Marta Gebreyesus
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引用次数: 3
Impact of Microplastics on Aquatic Organisms and Human Health: A Review 微塑料对水生生物和人类健康的影响
Pub Date : 2020-10-16 DOI: 10.19080/IJESNR.2020.26.556184
Mridula Rajesh
Since the development of commercially viable plastic in the 1950s, plastics have become an increasingly important packaging option worldwide. Unfortunately, these materials are increasingly under environmental scrutiny. Larger plastic debris slowly degrades into small fragments with various sizes ranging from meter to micrometer due to changing environmental conditions. Microplastics are a complex class of heavily modified, synthetic organic particulates, which contaminate a wide range of environments. They are a cause for concern because their size range mimics the prey size ingested by the aquatic organisms and these ingested microplastics can be potentially transferred to the higher predators. Recent studies have confirmed the ingestion of microplastics in commercially important fishes, which is ultimately consumed by humans. Thus, massive efforts are required to investigate the distribution and abundance of microplastics in the ocean, and in considering strategies to reduce the problem. Research is urgently needed, especially regarding the potential exposure and associated human health risk to micro and nano-sized plastics.
自20世纪50年代商业上可行的塑料发展以来,塑料已成为世界范围内越来越重要的包装选择。不幸的是,这些材料越来越受到环境审查。由于环境条件的变化,较大的塑料碎片会慢慢降解成大小从米到微米不等的小碎片。微塑料是一类复杂的经过大量改性的合成有机微粒,它污染了广泛的环境。它们令人担忧,因为它们的大小范围与水生生物摄入的猎物大小相似,这些摄入的微塑料可能会转移到更高的捕食者身上。最近的研究证实,在商业上重要的鱼类中摄入了微塑料,最终被人类食用。因此,需要付出巨大的努力来调查海洋中微塑料的分布和丰度,并考虑减少这一问题的策略。迫切需要进行研究,特别是关于微纳米塑料的潜在暴露和相关的人类健康风险。
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引用次数: 7
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International Journal on Environmental Sciences
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