Top Research Papers on Heavy Metals in Water

Marine pollution, including heavy metals, is prevalent in Indonesian waters. Previous studies have found evidence of Pb, Cd, Hg, Al and Fe metal contamination in sediments and green mussels. This study used survey research. Heavy metal pollution is increasingly accumulating so that if it is not controlled it is feared that it will have an impact on public health, especially people who live around the coast. The research method was conducted using survey techniques. This study aims to estimate the burden of heavy metal pollution in the ocean. The research was conducted in 5 (five) areas of Indo...

The review shows that the electrochemical detection of heavy metal ions is a very promising strategy that has attracted widespread attention and can be applied in agriculture, life science, clinical diagnosis, and analysis.

Nanotechnology finds its application almost in every field of science and technology. At the same time, it also helps to find the solution to various environment-related problems, especially water contamination. Nanomaterials have many advantages over conventional materials, such as high surface area, both polar and non-polar chemistries, controlled and size-tunable, easier biodegradation, which made them ideal candidates for water and environmental remediation as well. Herein, applications of non-carbon nanomaterials, such as layered double hydroxides, iron oxide magnetite nanoparticles, nano...

Water is a vital resource for all kinds of lives. Heavy metals (HM) generally enter the aquatic environment through natural (atmospheric deposition, erosion of geological matrix) or anthropogenic activities caused by industrial effluent, domestic sewage, mining and agricultural wastes. Tanning generally requires using a heavy chemical that contains chromium, cadmium etc. It was observed that these industrial wastes are discharged, without proper treatment, into small waterways, which subsequently adjoin the rivers and dams. Using agricultural chemicals and fertilizers also contributes to the c...

As a result of anthropogenic impact, significant changes occur in the morphometric, hydrological, chemical and other characteristics of water bodies, which in turn leads to changes in the structure, productivity and condition of aquatic ecosystems. Pollution of water bodies is the result of anthropogenic activities that lead to negative consequences - deterioration of water quality, threat to water bodies, deterioration of life and health of people. In order to monitor the water ecosystems of Akmola region, the research team took water samples from water bodies (Nura, Ishim Rivers of the Repub...

Clean and safe drinking water is one of the most important and essential components on earth for human survival. However, due to the various anthropogenic activities, the surface and groundwater have been contaminated with heavy metals and radionuclides, and it has become a serious problem of concern globally. These non-biodegradable heavy metal ions from water tends to accumulate in the soil and living organisms and causes serious health hazards in humans. Thus, the finding of recyclable, water-stable MOFs, and multi-functional MOFs (hybrid MOFs) with superior adsorption capability have emerg...

Heavy metals are metal ions which acts as carcinogens and causes serious health issues as they produce free radicals and these free radicals cause damage to DNA which eventually leads to cancer. They are non-degradable in nature and responsible for contamination of various natural resources in environment mainly water contamination has become a major problem. Many metal ions such as cadmium, lead, arsenic, mercury are considered as toxic metals. The analysis of these metal ions is necessary and to detect these metal ions, several detection methods such as electrochemical biosensors, CNT’s, sil...

Water quality depends on its physicochemical and biological parameters. Changes in parameters such as pH, temperature, and essential and non-essential trace metals in water can render it unfit for human use. Moreover, the characteristics of the local environment, geological processes, geochemistry, and hydrological properties of water sources also affect water quality. Generally, groundwater is utilized for drinking purposes all over the globe. The surface is also utilized for human use and industrial purposes. There are several natural and anthropogenic activities responsible for the heavy me...

Natural occurrence and anthropogenic practices contribute to the release of pollutants, specifically heavy metals, in water over the years. Therefore, this leads to a demand of proper water treatment to minimize the harmful effects of the toxic heavy metals in water, so that a supply of clean water can be distributed into the environment or household. This review highlights several water treatment methods that can be used in removing heavy metal from water. Among various treatment methods, the adsorption process is considered as one of the highly effective treatments of heavy metals and the fu...

Sawdust has major advantages to be considered and is one of the most promising materials to solve the wastewater problem and could play a major role in improving the adsorption process.

Heavy metal pollution of water has become a global issue and is especially problematic in some developing countries. Heavy metals are toxic to living organisms, even at very low concentrations. Therefore, effective and reliable heavy metal detection in environmental water is very important. Current laboratory-based methods used for analysis of heavy metals in water require sophisticated instrumentation and highly trained technicians, making them unsuitable for routine heavy metal monitoring in the environment. Consequently, there is a growing demand for autonomous detection systems that could ...

The growing apprehension surrounding heavy metal pollution in both environmental and industrial contexts has spurred extensive research into adsorption materials aimed at efficient remediation. Among these materials, Metal–Organic Frameworks (MOFs) have risen as versatile and promising contenders due to their adjustable properties, expansive surface areas, and sustainable characteristics, compared to traditional options like activated carbon and zeolites. This exhaustive review delves into the synthesis techniques, structural diversity, and adsorption capabilities of MOFs for the effective rem...

Heavy metal toxicity has proven to be a major threat and there are several health risks associated with it. The toxic effects of these metals, even though they do not have any biological role, remain present in some or the other form harmful for the human body and its proper functioning. Heavy metals are generally referred to as those metals which possess a specific density of more than 5 g/cm3 and adversely affect the environment and living organisms. These metals are essential to maintain various biochemical and physiological functions in living organisms when in very low concentrations, how...

Toxic heavy metals accumulate in crops from the environment through different routes and may interfere with biochemical reactions in humans, causing serious health consequences. Plasma technology has been assessed for the promotion of seed germination and plant growth in several past studies. Therefore, the aim of the present study was to evaluate whether the growth rate of plants can be increased with the application of non-thermal plasma, as well as to reduce the accumulation of heavy metals in leafy vegetables (water spinach). In this study, several kinds of plasma treatments were applied, ...

Water contaminated by heavy metals is a serious worldwide environmental and public health issue Heavy metals such as arsenic lead, mercury cadmium and chromium can enter water systems as a result of a mix of natural and human activities such as inappropriate waste disposal industrial runoff and agricultural runoff

It is substantiated that the current ecological state of the surface waters of Ukraine is characterized by very dirty. The research results indicate that insufficiently treated wastewater enters surface sources. The main pollutants include phosphates as a constituent of detergents, washout of phosphate fertilizers and pesticides from agricultural communities, and industrial effluents containing heavy metals. The analysis of modern data on the sources and intensity of entry, content, transformation and influence of phosphates and heavy metals on aquatic organisms and surface water bodies was ca...

1 Faculty of Science and Technology, Universitas Terbuka, Jl. Cabe Raya, Pondok Cabe, Pamulang, Tangerang, Banten 15437, Indonesia 2 Sumbawa University of Technology, Jl. Raya Olat Maras Batu Alang, Pernek, Kec. Moyo Hulu, Sumbawa Regency, West Nusa Tenggara. Indonesia 3 Faculty of Science and Technology, Universitas Terbuka Malang, Jl. Mayjen Sungkono, Kedungkandang, Malang, Jawa Timur 65135, Indonesia

Well water for residents around the TPA is the main source of water for the community because all water needs are met from well water, whether for drinking, cooking, bathing, washing, feeding livestock and other needs. Any change in water quality due to the influence of leachate from the TPA will affect well water users, especially for their health. People in this environment are very at risk of health problems, especially due to soil pollution from leachate from the landfill. This research aims to determine the distribution of lead (Pb), mercury (Hg) and copper (Cu) metal content in community...

The best way to get rid of heavy metal contamination in drinking water is to remove toxic heavy metals by using the best water purification system, according to definition, sources, health effects on humans and preventive measures.

Water purification is becoming increasingly important due to the scarcity and industrial contamination of water. Although traditional adsorbents such as activated carbon and zeolites can remove heavy metal ions from water, they have slow kinetics and low uptake. To address these problems, metal-organic framework (MOF) adsorbents have been developed, which are characterized by facile synthesis, high porosity, designability, and stability. Water-stable MOFs, such as MIL-101, UiO-66, NU-1000, and MOF-808, have attracted considerable research interest. Thus, in this review, we summarize the develo...

The increase in industrialization has led to an exponential increase in heavy metal (HM) soil contamination, which poses a serious threat to public health and ecosystem stability. This review emphasizes the urgent need to develop innovative technologies for the environmental remediation of intensive anthropogenic pollution. Phytoremediation is a sustainable and cost-effective approach for the detoxification of contaminated soils using various plant species. This review discusses in detail the basic principles of phytoremediation and emphasizes its ecological advantages over other methods for c...

The objective of this study was to determine the bioaccumulation of heavy metals (HM) (Cu, Zn, Hg, Pb and Cd) in 15 tissues (brain, breast muscle, sternum, thigh muscle, femur, blood, heart, lung, gizzard, liver, intestine, spleen, pancreas, bile and kidney) of domestic ducks exposed to HM-contaminated water with levels equal to values specified in the column B of QCVN 40:2011/BTNMT. The experiment was a completely randomized design with two treatments: without exposure to HM (CT) and with exposure to HM (ET). Each treatment was replicated 3 times. Ducks were randomly allocated to the treatmen...

In the late 1980s oceanographers were puzzled by the Southern Ocean because satellite images attuned to chlorophyll wavelengths showed very low levels of chlorophyll, despite samples of the water being rich in nutrients like nitrate, phosphate and silicate, conventionally regarded as the factors limiting plankton growth. Unable to explain why the phytoplankton were not growing to use the available nutrients, a safe response was simply to name the phenomenon: such waters were termed High-Nitrate, LowChlorophyll (HNLC).

Azolla pinnata aquatic fronds were tested for their ability to bioaccumulate heavy metals from Yoshida medium supplemented with different heavy metals, i.e. Pb, Cd and Cu at different concentrations 0.0, 0.5, 1.0, 1.5 and 2.0 ppm, at different growth periods of 5, 10, 15, 20, 25 and 30 days. Results revealed that azolla can grow healthy with the accumulation of these metals. The highest fresh and dry weights of azolla were observed after 30 days at 2.0 ppm of Cu. These values were significantly higher than those for Pb and Cd at 1.0 and 0.5 ppm , respectively. Also, azolla fronds exerted highe...

There is a major knowledge gap and a multifarious problem involving metal chemistry, physical interac-tions of metals, microbiology, aerobic and anaerobic processes in understanding the precipitation of heavy metals in sewage and polluted water bodies. This study focuses on determining the most feasible metal-salt that can be formed using standard Gibbs free energy change for each possible reaction of all the heavy metals in wastewater. Solubility limits of all possible metal salts are computed. It is shown that even in the short anaerobic stage, any heavy metal will have the propensity to pre...

Biosensors are nowadays a powerful alternative to conventional analytical techniques for controlling the quality of not only natural water but also process water used by the food industry during the production process, as well as wastewater prior to release into natural watercourses. The goal is to provide the required quality and safety of water from the standpoint of heavy metal contamination. The basic and most important characteristics of biosensors are high sensitivity, short response time, specificity, and relatively low production cost. Biosensors can detect the presence and measure the...

This study aimed to assess the status of heavy metals (Cadmium and Arsenic) in the seawater of Aparri, Cagayan and the awareness of respondents- fisherfolks and implementors (BFAR and DENR personnel)- towards heavy metal contamination and intoxication. The level of Cadmium and Arsenic were measured in seawater samples taken from the seashore and at the fishing area using Graphite Furnace Atomic Absorption Spectroscopy. Close ended questionnaire was used in assessing the level of awareness of stakeholders towards heavy metal contamination and intoxication. The gathered results revealed that the...

Analysis of the content of heavy metals Cu, Pb and Zn in seawater, sediment and snails (C. obtusa) in Singkep island was held on June – July 2022. All parameters measured water quality is still within tolerable limits for the survival of the aquatic organism . Samples of sea water, sediment and snails (C. obtusa) were taken from five stations with three replicates at each station. Heavy metals were analyzed in the KLH Pekanbaru laboratory using an Atomic Abortion AA-7000 Shimadzu spectrophotometer. The results showed that the average content of heavy metals in Singkep waters was 0.0724 mg/l (C...

Abstract: Shellfish is a source of toxic heavy metals and the maximum levels of heavy metals allowed in shellfish by BPOM RI are Lead 1.5 mg/kg, Cadmium 1 mg/kg and Copper 20 mg/kg. Heavy metal content in shellfish is influenced by environmental pollution in which the shellfish live. The purpose of this study was to determine the levels of heavy metals in three types of shellfish in Tanjung Balai Asahan waters. Shellfish samples were taken from 3 different locations in Tanjung Balai in July 2021. Determination of the levels of heavy metals Pb, Cd and Cu in green mussels, mussels and blood clam...

Water is essential for all forms of life. There is a measure that is used to monitor the quality of the water called water quality. This study will show the awareness of the quality and the health of the water before starting with preliminary studies. The heavy metal awareness will bring about more understanding and ease to the public about the water bodies near their housing area. One of the benefits of the study is to ensure the water in the dams and lakes is clean and clear. The main aim of the study is to raise awareness about water quality and heavy metal pollution in dams and lakes in ar...

Semenyih River has been considered one of Malaysia’s most important rivers, particularly in the Selangor Region. This river has been the primary water supply for Putrajaya’s domestic and industrial activities in Sepang and Hulu Langat District. However, due to the rapid development near the Semenyih River, this stream’s quality has been heavily affected. Therefore, this research aimed to determine the Water Quality Index (WQI) and heavy metals concentration in the upstream, middle stream, and downstream of the Semenyih River. The upstream is located at Pening River Village, the middle stream s...

Abstract. This work is part of a program to study and monitor the impact of human activities in the cities of Missour and Outat El Haj on the quality of the surface waters of the average Moulouya (Morocco).The aim of this study is to evaluate in time and space, the degree of metallic pollution of surface water of the average Moulouya during the period (September 2014, January, April and July 2015). The results of this study suggest that the waters of the ten stations in the study area are relatively contaminated with heavy metals. The contents of the analyzed metals are high and variable in th...

Elevated concentrations of heavy metals in drinking water resources and industrial or urban wastewater pose a serious threat to human health and the equilibrium of ecosystems [...]

Background: The provision of adequate clean drinking water is a basic human need in every society. In Nigeria, like many developing countries, the provision of clean drinking water is not adequate. The introduction of sachet water is seen by many as a solution to the problem. This is because it is affordable where more than a litter of it is sold at ten Naira or even less. The availability and affordability of sachet water have made it a preferred choice for most people despite questions being raised about the purity and potential toxicity. Objectives: To evaluate the heavy metal contents of s...

Heavy metal pollution has become one of the most serious environmental problems globally. The removal of heavy metals from the environment is of special concern due to their persistence in the environment. Yet conventional techniques for removing these metals are very expensive and impractical for use in many parts of the developing world. Researchers therefore continue to explore cheaper, but effective techniques. The research presented in this book explores the use of raw coconut shell powder in removing heavy metals via biofiltration, and compares its effectiveness to that of activated coco...

ABSTRACT The presence of heavy metal in river water due to the disposal of industrial waste in that water, this causes the environmental effects and leads to the health issues. Various modern equipment and natural methods are available to remove the heavy metals in polluted water, the methods available to remove heavy metals are such as chemical precipitation, ion exchange, reverse osmosis, membrane filtration, bio absorption and phytoremediation. The objective of the study is to evaluate the phytoremediation capability of water hyacinth (Eichhornia Crassipes). The people from the study area f...

The water systems explored in this study showed different yeast levels and susceptibility profiles, and, therefore, possible genetic differences among populations of the same species, and different physico-chemical and heavy metals concentrations, which were probably modulating the antifungal-resistant yeasts.

The primary focus of the study is to assess the presence and concentration of heavy metals in the water and evaluate its suitability for drinking purposes. Given that a significant portion of the local population depends on groundwater for their daily needs, the study is critical in understanding the potential health risks associated with consuming contaminated water. The study begins with a comprehensive survey to gauge the extent of water usage among the local population and their perceptions of water quality. Results from the survey reveal that nearly half of the households in the region ar...

Although heavy metals are typically found in trace levels in natural waterways, most of them are hazardous to human health and the environment, even at extremely low concentrations. Nanotechnology and nanomaterials have gained great attention among researchers as a sustainable route to addressing water pollution. Researchers focus on developing novel nanomaterials that are cost-effective for use in water/wastewater remediation. A wide range of adsorbed nanomaterials have been fabricated based on different forms of natural materials, such as carbonaceous nanomaterials, zeolite, natural polymers...

Heavy metals are toxic and non-biodegradable environmental contaminants that seriously threaten human health. The remediation of heavy metal-contaminated water and soil is an urgent issue from both environmental and biological points of view. Recently, nanomaterials with excellent adsorption capacities, great chemical reactivity, active atomicity, and environmentally friendly performance have attracted widespread interest as potential adsorbents for heavy metal removal. This review first introduces the application of nanomaterials for removing heavy metal ions from the environment. Then, the e...

Freshwater ecosystems are being contaminated by heavy metals pollution. The primary source of contamination is wastewater discharged from urban, industrial, and agricultural facilities. The contaminated water contains hazardous amounts of heavy metals mixed in the freshwater ecosystem, causing deleterious impacts on marine life and humans. This review paper highlights the contamination of the freshwater ecosystem of Pakistan with heavy metals. Heavy metals concentration in sediments, water, and fish were assessed in the food chain, and their relationship with sites and sources was explored. ...

This review has been written with the hope that it would be beneficial as a source of information for researchers and other common people regarding heavy metals and their adverse effects on health.

In recent years, the utilization of phosphorus-enriched biochar (PBC) has attracted significant attention due to its exceptional stability and surface reactivity. This review systematically summarizes the advancements in research related to the application of PBC as an adsorbent for remediating water contaminated with heavy metals. Initially, the precursors utilized in the production of PBC, encompassing biomass and phosphorus sources, are introduced. Subsequently, the distinct physicochemical properties and adsorption characteristics resulting from phosphorus doping on the biochar surface thr...

Water quality is one of the most important concerns. This study focused on screening of the most dangerous heavy metals(cadmium, chromium, copper, lead and nickel)in fresh water sources (surface and groundwater) of study area, Sohag governorate, Egypt. Ninety samples were collected from 15 sites along the study area extending from Tima to Dar-Elsalam cities; 12 wells and 3 Nile river local sites, 6 samples for each site, three during winter and three during summer. Results indicated that, total dissolved solids (TDS) and electric conductivity(EC) parameters in all samples increased significant...

Four heavy metals (Copper, Cadmium, Lead and Zinc) are monitored in drinking water at twelve important residential areas using DPASV Technique. The results indicate the water to free of heavy metal pollution. The data monitored have been used to compute Heavy metal pollution index (HPI) using weighted arithmetic mean method and the proposed Pollution Index (HPI) seems to be applicable in the assesement of overall water quality with respect to heavy metal pollution.

Biosensors are nowadays a powerful alternative to conventional analytical techniques for controlling the quality of not only natural water but also process water used by the food industry during the production process, as well as wastewater prior to release into natural watercourses. The goal is to provide the required quality and safety of water from the standpoint of heavy metal contamination. The basic and most important characteristics of biosensors are high sensitivity, short response time, specificity, and relatively low production cost. Biosensors can detect the presence and measure the...

The strong popularity and tourist potential of the Rabat/Salé region of northern Morocco plays an important socio-economic role, asking the question of monitoring its environmental quality. This study provides a preliminary dataset for concentrations of dissolved heavy metals in water and sediment. Concentrations of six metal elements (Fe, Zn, Cu, Cr, Pb, and Cd) were measured in water and sediment to understand the level of heavy metals and their source distributions, that could be distributed through anthropogenic activities. The samples were taken at five stations in the Bouregreg estuary o...

A technique called phytoremediation makes use of a plant’s root system to draw contaminants, primarily heavy metals (zn, cr, and ni), from the surrounding rhizosphere. These are the end result of human actions such the use of pesticides, waste byproducts, cosmetics, and pharmaceuticals. This analysis focuses on soil contamination removal since prolonged exposure to heavy metals can cause respiratory illnesses, cardiovascular disorders, cancer of the liver, lungs, and kidneys, among other problems. In order to immobilise metals and change their harmful states into less toxic states, plants use ...

Metal are present in environment parts in low concentration. The presences of heavy metals pollution in water has negative impacts not only aquatic ecosystems but also represent serious problems for human health. Metal contamination in water is a major component in the determination of water quality. The object is this study was the analysis and identification of heavy metals in tap water at the Tirana city. During this survey we were collected samples at different points of the water supply, from sources of water, storage of water and in the consumer from different locations in Tirana city. T...

Biosensors are nowadays a powerful alternative to conventional analytical techniques for controlling the quality of not only natural water but also process water used by the food industry during the production process, as well as wastewater prior to release into natural watercourses. The goal is to provide the required quality and safety of water from the standpoint of heavy metal contamination. The basic and most important characteristics of biosensors are high sensitivity, short response time, specificity, and relatively low production cost. Biosensors can detect the presence and measure the...