Current status of microplastics pollution in the aquatic environment, interaction with other pollutants, and effects on aquatic organisms

2022 ◽  
Author(s):  
Tian Zhang ◽  
Bo Jiang ◽  
Yi Xing ◽  
Haobo Ya ◽  
Mingjie Lv ◽  
...  
Keyword(s):  
Aquatic Environment ◽  
Aquatic Organisms ◽  
Current Status ◽  
Environment Interaction

scholarly journals FAKTOR-FAKTOR YANG MEMPENGARUHI TOKSISITAS BAHAN PENCEMAR TERHADAP ORGANISME PERAIRAN

OSEANA ◽  
2019 ◽  
Vol 42 (2) ◽  
pp. 12-22
Author(s):  
Triyoni Purbonegoro
Keyword(s):  
Environmental Factors ◽  
Physicochemical Properties ◽  
Aquatic Environment ◽  
Aquatic Ecosystems ◽  
Physiological Condition ◽  
Aquatic Organisms ◽  
Combined Effects ◽  
Biological Factors ◽  
Factors Affecting ◽  
Major Factors

FACTORS THAT AFFECTING THE TOXICITY OF POLLUTANTS TO AQUATIC ORGANISMS. There are a large number of pollutants in aquatic environment with various characteristics and factors that can modify and affect the toxicity of pollutants in this environment. The major factors affecting pollutant toxicity include physicochemical properties of pollutants, mode of exposure, time, environmental factors, and biological factors. Moreover, organisms in an aquatic ecosystem are seldom exposed to only single pollutant, and most cases the stress of pollution on aquatic ecosystems is related to the interaction and combined effects of many chemicals. The combined effects may be synergistic or antagonistic, depending on the pollutants and the physiological condition of the organism involved.

Ecotoxicity Effects of Nanomaterials on Aquatic Organisms

2016 ◽  
pp. 330-351 ◽  
Author(s):  
César A Barbero ◽  
Edith Inés Yslas
Keyword(s):  
Adverse Effects ◽  
Surface Charge ◽  
Direct Effect ◽  
Mechanism Of Action ◽  
Aquatic Environment ◽  
Physicochemical Characteristic ◽  
Aquatic Organisms ◽  
Development Stage ◽  
Engineered Nanomaterials ◽  
Toxicity Data

The increasing production and use of engineered nanomaterials raise concerns about inadvertent exposure and the potential for adverse effects on the aquatic environment. The aim of this chapter is focused on studies of nanotoxicity in different models of aquatic organisms and their impact. Moreover, the chapter provides an overview of nanoparticles, their applications, and the potential nanoparticle-induced toxicity in aquatic organisms. The topics discussed in this chapter are the physicochemical characteristic of nanomaterials (size, aggregation, morphology, surface charge, reactivity, dissolution, etc.) and their influence on toxicity. Further, the text discusses the direct effect of nanomaterials on development stage (embryonic and adult) in aquatic organisms, the mechanism of action as well as the toxicity data of nanomaterials in different species.f action as well as the toxicity data of nanomaterials in different species.

Chemical and Biological Treatment of Dyes

2020 ◽  
pp. 170-204
Author(s):  
Kiran Meghwal ◽  
Reema Agrawal ◽  
Srishti Kumawat ◽  
Nirmala Kumari Jangid ◽  
Chetna Ameta
Keyword(s):  
Azo Dyes ◽  
Aquatic Environment ◽  
Industrial Wastewater ◽  
Biological Treatment ◽  
New Technologies ◽  
Aquatic Organisms ◽  
Textile Wastewater ◽  
Important Concern ◽  
Industrial Needs ◽  
Living Being

Life of living or non-living being depends on water; in short, water is life. But these days, with the growing industrialization, it is spoiling a lot. Wastewater contains contaminants like acids, bases, toxic organic and inorganic dissolved solids, and colors. Out of them, the most undesirable are colors caused mainly by dyes. Color and other compounds present in water are always not desirable for domestic or industrial needs. The wastes of dyes are predominant amongst all the complex industrial wastewater. This water is dark in color and highly toxic, blocking the sunlight and affecting the ecosystem. Among all the dyes, azo dyes contribute to commercial dyes used widely in textile, plastic, leather, and paper industries as additives. The removal and degradation of azo dyes in aquatic environment is important because they are highly toxic to aquatic organisms. For every industry, clean technology has become an important concern. In this chapter, the authors discuss about existing processes as well as promising new technologies for textile wastewater decolorisation.

scholarly journals Kandungan Logam Berat Timbal (Pb) Dan Kadmium (Cd) Pada Air, Sedimen Dan Organ Mangrove Di Perairan Tulehu

2020 ◽  
Vol 8 (2) ◽  
pp. 149
Author(s):  
NUR ALIM NATSIR ◽  
YUSRIANTI HANIKE ◽  
MUHAMMAD RIJAL ◽  
SUHAEDIR BACHTIAR
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Atomic Absorption ◽  
Key Words ◽  
Aquatic Environment ◽  
Aquatic Organisms ◽  
Atomic Absorption Spectrophotometer ◽  
Lead And Cadmium ◽  
Stems And Leaves ◽  
And Control

Differences in the accumulation of heavy metals lead and cadmium in water, sediments and mangrove organs (roots, stems and leaves) found in the waters of Tulehu, Maluku Province. Samples were taken from three observation stations, namely stopping ships that are not operating (station 1), Tulehu harbor (station 2) and Control (station 3). Pb and Cd were analyzed using Atomic Absorption Spectrophotometer. Pb and Cd content in sediments is higher than in water. The highest Pb and Cd content is found in the stems then in the roots and leaves (stems> roots> leaves). Mangroves are one of the aquatic organisms that have the ability to absorb heavy metals in the aquatic environment. Key words: Mangrove, Pb, Cd, Heavy Metal

scholarly journals The Effect of Brine on Organisms-Hydrobionts

2018 ◽  
Vol 11 (3) ◽  
pp. 30
Author(s):  
Issayeva A. U. ◽  
Bishimbayev V. K. ◽  
Zhumagulyeva A. I.
Keyword(s):  
Population Structure ◽  
Water Resources ◽  
Aquatic Environment ◽  
Aquatic Organisms ◽  
The Other ◽  
Aral Sea ◽  
Filamentous Algae ◽  
Salt Layer ◽  
Other Hand

<p>The problem of salinization of water resources associated with the drying of the Aral sea is one of the urgent problems of Kazakhstan. Annual salt storms cover hundreds of kilometers around the sea with a salt layer. Salinization of water resources leads to changes in the population structure of aquatic organisms. On the other hand, the influence of brine on aquatic organisms is not well understood. As a result of the work it was found that the introduction of the surface brine of lake Zhaksy-Klych, located near the Aral sea, into the aquatic environment in a ratio of 1:1 causes the death of all protozoal organisms, and in the cells of filamentous algae there was a convex plasmolysis. The most resistant diatoms in which the introduction of brine into the water causes a gradual plasmolysis of convex and convulsive form.</p>

Breeding strategies for the development of the Australian beef industry: an overview

2006 ◽  
Vol 46 (2) ◽  
pp. 183 ◽  
Author(s):  
K. Hammond
Keyword(s):  
Genetic Improvement ◽  
Genetic Material ◽  
Current Status ◽  
Research Centre ◽  
Progeny Testing ◽  
Environment Interaction ◽  
Production Environment ◽  
Cooperative Research ◽  
Beef Industry ◽  
Production Environments

Strategic directions for the period 2010 to 2020 and research and development needs are considered for the Australian Beef Industry from the breeding sector’s perspective. These are related to the way major technologies are developed for an industry, the current status and likely trends in market development and appropriation of benefits to the consumer, processor, commercial beef producer and breeding sectors. The primary strategic needs identified are: (i) understand the functional biology for the major production environments (supply chain packages), (ii) accelerate the speed of genetic improvement for production environment breeding goals based on commercial sector profitability and the dissemination of superior genetic material to this sector, and (iii) retain and develop the Beef Cooperative Research Centre concept over the period. Tactics for realising each strategy are considered. Rigorously designed industry-level studies based on a genotype × environment interaction approach, involving all major production environments and breeds, have an important role to play, as do the serial development of measuring equipment and procedures for carcass quality and yield, body maintenance, disease management and maternal performance. Information and communication, molecular genetics and artificial insemination technologies, along with formal progeny testing and an extended BREEDPLAN system, will be increasingly used by the breeding as well as commercial industry sectors to more consistently meet particular market demands. Carefully executed progeny testing is a pragmatic and necessary breeding approach for the period, serving a number of important purposes. The beef industry as a whole will need to take more responsibility for its genetic improvement element by: managing the appropriation of benefits across sectors, developing an increasingly effective system of value-based marketing and, for each sector and production environment, a more appropriate program of capacity building. The industry could now usefully consider the further development of its activity to address these longer-term strategic needs.

A “point-of-entry” bioaccumulation study of nanoscale pigment copper phthalocyanine in aquatic organisms

2021 ◽  
Vol 8 (2) ◽  
pp. 554-564
Author(s):  
Chengfang Pang ◽  
Lars M. Skjolding ◽  
Henriette Selck ◽  
Anders Baun
Keyword(s):  
Aquatic Environment ◽  
Copper Phthalocyanine ◽  
Aquatic Organisms ◽  
Global Scale ◽  
Environmental Harm ◽  
Point Of Entry

Nanoscale pigments (e.g., nanoscale copper phthalocyanine; nano-CuPc) are used in very large quantities on a global scale. Due to their widespread use, they may reach the aquatic environment and potentially cause environmental harm.

scholarly journals Micropellet Particles: A Vector of Hydrophobic Endocrine Disrupting Chemicals in Lagos Lagoon

2019 ◽  
pp. 1-14
Author(s):  
Olushola A. Abiodun ◽  
Fidelia I. Osuala ◽  
Adebayo A. Otitoloju ◽  
Carine M. D. Fotsing3 ◽  
Derek T. Ndinteh
Keyword(s):  
Aquatic Environment ◽  
Endocrine Disrupting Chemicals ◽  
Aquatic Organisms ◽  
Sampling Station ◽  
Flame Ionization ◽  
Plastic Materials ◽  
Sampling Locations ◽  
Endocrine Disrupting ◽  
Lagos Lagoon ◽  
Negative Impacts

Introduction: The occurrence of plastic waste materials in the aquatic environment is receiving enormous attention all over the world due to its negative impacts on aquatic organisms. Micropellet litters have been found to adsorb and absorbs persistent organic endocrine disrupting chemicals (EDCs). Endocrine disrupting chemicals are recognized toxic chemicals to human and organisms. Aim: This study quantifies occurrence of micropellet particles in Lagos Lagoon and their EDCs contents. Methodology: The sampling was conducted from 2016 to 2018 at eight sampling locations with three points established in each of the sampling station. The chemical analysis of EDCs was conducted by gas chromatography coupled with electron capture detector and flame ionization detector. Results: Micropellet particles occurrence was highest in surface water (67%) compared to (33%) in sediment during the period of sampling. EDCs contents reflect contamination of PCBs and PAHs in the extracted micropellet particles. Some sampling stations contained relatively higher PAHs concentrations but very low concentration of PCBs. Conclusion: Since, micropellet particles and EDCs cannot be removed completely from the aquatic environment; reduction of impending hazards ought to rely on curtailing disposal of plastic materials and sensitizing the populace on general disposal methods in order to minimize interaction of plastic particles with EDCs which are likely to pose significant effects on aquatic fauna.

scholarly journals Diversity Variation of Silica-Scaled Chrysophytes Related to Differences in Physicochemical Variables in Estuaries of Rivers in an Arctic Watershed

2021 ◽  
Vol 13 (24) ◽  
pp. 13768
Author(s):  
Anna Bessudova ◽  
Viktor Gabyshev ◽  
Alena Firsova ◽  
Olga Gabysheva ◽  
Yurij Bukin ◽  
...  
Keyword(s):  
Species Richness ◽  
Environmental Changes ◽  
Global Climate ◽  
Sampling Site ◽  
Aquatic Organisms ◽  
Taxonomic Diversity ◽  
Ion Concentration ◽  
The Arctic ◽  
Current Status ◽  
Scaled Chrysophytes

The present study examined the taxonomic diversity of silica-scaled chrysophytes in the estuaries of the Arctic watershed of Yakutia in the context of global climate change, as these aquatic organisms are highly sensitive to environmental changes. Previously, 41 species of silica-scaled chrysophytes were recorded in the waters of Yakutia. In the present study, we supplemented this list with 55 species. We observed a high species richness (82 taxa) of silica-scaled chrysophytes in the study area. Of these, eight species were recorded in the waters of Russia for the first time. At present, the study area represents the northernmost habitat for most species observed during the study. The diversity of silica-scaled chrysophytes in Arctic rivers is comparable to or even greater than the diversity of chrysophycean flora at the middle latitudes. Most of these chrysophytes are represented by polyzonal and ubiquitous species. During 2008–2010, we noted increased relative numbers of boreal species in northern waters compared with data obtained during the previous 30 years. Overall, the species richness of silica-scaled chrysophytes in the studied rivers increased with increase in water transparency, temperature, and magnesium ion concentration, but decreased with increase in surfactant concentration. The origin of samples from a certain river; distance of the sampling site from the estuary; water temperature, transparency, and colour; and concentration of carbon dioxide, magnesium ions, total iron, surfactants, and oil products affect the species composition of silica-scaled chrysophytes in the study area. Our findings are fundamental to evaluate the current status of Arctic aquatic microflora and its further monitoring in the context of anthropogenic and climatic impacts.

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