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61,005 resultsShowing papers similar to Mixture of Toxic Metals and Volatile Organic Compounds in a River Induces Cytotoxicity
ClearAnalysis of water quality, bioindicators, contaminants and their cytogenetic impacts in a Cerrado reservoir
Researchers evaluated water quality and sediment toxicity in Brazil's Cana Brava reservoir using the Allium cepa test, detecting cytotoxic and genotoxic effects alongside metals, microplastics, and other contaminants near urban tributaries.
Determination of Cytotoxic Impact of Heavy Metals on Plant Cells Using (Onion)
This paper is not about microplastics. It studied the cytotoxic effects of heavy metals from dumpsites on onion root tip cells, finding that lead, chromium, cadmium, and other metals caused chromosomal damage and DNA alterations. While heavy metal contamination is a serious environmental health concern, this study has no connection to microplastic pollution.
Evaluation of Cytotoxic and Phytotoxic Potentials of “Chi Limited” Industrial Effluent on Allium Cepa and Vignaunguiculata
This study assessed the cytotoxicity and phytotoxicity of industrial effluent from a Nigerian factory using onion root and bean seedling tests, finding the effluent caused significant cellular and plant damage. The results document harmful pollution from unregulated industrial discharge in West African freshwater systems.
Determining the Effect of Discharge of the Coastal Wastewater Treatment Plants on the Toxicity of Surface Waters: A Case Study in İstanbul
Researchers evaluated the toxicity of coastal surface waters affected by wastewater treatment plant discharges in Istanbul, assessing how xenobiotic compounds from domestic and industrial sources interact to produce synergistic or antagonistic toxic effects on aquatic ecosystems.
Ecotoxicity of a Representative Urban Mixture of Rare Earth Elements to Hydra vulgaris
Researchers tested the toxicity of a realistic mixture of five rare earth elements, found in Canadian municipal wastewater, on the freshwater organism Hydra vulgaris. Even at concentrations below those found in typical wastewater discharges, the mixture triggered changes in gene expression related to oxidative stress, DNA repair, and neural activity. The study suggests that chronic low-level exposure to rare earth element mixtures from wastewater may pose long-term risks to aquatic organisms.
Phytotoxic Effects of Treated Wastewater Used for Agricultural Irrigation On Root Hydraulic Conductivity and Plant Growth
This study tested whether treated municipal wastewater used for crop irrigation harms plants, finding effects on root water transport and growth. Treated wastewater often contains microplastics and plastic-associated chemicals, and irrigating with it may be a pathway for these contaminants to enter food crops.
Giant Toads (Rhinella marina) From the Industrial Zones of Low Basin of the Coatzacoalcos River (Veracruz, MX) Presents Genotoxicity in Erythrocytes
Researchers found elevated genotoxicity in giant toads (Rhinella marina) living near industrial zones along the heavily polluted Coatzacoalcos River in Mexico, with higher rates of DNA damage, nuclear abnormalities, and apoptosis compared to toads from rural or laboratory settings.
Phytotoxic effects of treated wastewater used for agricultural irrigation on root hydraulic conductivity and plant growth
Researchers conducted hydroponic experiments to test the phytotoxic effects of treated wastewater on root hydraulic conductance in maize seedlings, finding that pressurized water flow through excised roots was reduced by 25-52% within 90 minutes of exposure. The study identified wastewater components that impair plant water transport capacity when agricultural irrigation uses treated effluent.
Effects of Irrigation Water Sources on Soil Fertility, Heavy Metal Accumulation in both Soil and Rice (Oryza sativa L.)
Scientists found that rice grown with sewage water contains higher levels of heavy metals like cadmium, which can be harmful if eaten regularly. While this wastewater helps crops grow better by adding nutrients to soil, the toxic metals that build up in the rice could pose health risks to people who eat it. This research shows we need better monitoring of crops grown with recycled wastewater to keep our food supply safe.
Evaluation of cytogenotoxic potential and embryotoxicity of KRS-Cauvery River water in zebrafish (Danio rerio)
Researchers examined the toxicity of polluted Cauvery River water on zebrafish, finding cytogenotoxic effects and embryo deformities linked to heavy metals, pesticides, and microplastics present in contaminated water samples.
Genotoxicity of Water Extracts from Sewage Effluents in the Kanagawa Prefecture, Japan Using the Novel umu Tester Strain
Researchers used a novel bacterial test strain to measure the genotoxic (DNA-damaging) activity of water collected from 24 sewage treatment plant effluents in Kanagawa Prefecture, Japan. Nine sampling points showed significant genotoxic activity, including from sites where treated effluent was discharged, raising concern about the chemical quality of treated wastewater.
Assessment of heavy metal accumulation and health risks in okra (Abelmoschus Esculentus L.) and spinach (Spinacia Oleracea L.) fertigated with wastwater
Researchers in Pakistan measured levels of toxic heavy metals — cadmium, chromium, and lead — in wastewater-irrigated soil and vegetables, finding that irrigation with contaminated water significantly increased metal concentrations in okra and spinach to levels posing health risks to local populations.
Aging of disposable face masks in landfill leachate poses cyto-genotoxic risks to Allium cepa: Perils of uncontrolled disposal of medical waste
Researchers found that disposable face masks break down faster in landfill conditions than in plain water, releasing polypropylene microfibers and toxic metals. The leachate from degraded masks caused significantly more DNA damage and oxidative stress in plant cells compared to masks aged in clean water. This study highlights that improper disposal of face masks in landfills creates a growing source of microplastic and chemical contamination.
Heavy Metal Pollution and Health Risk Assessment of Vegetable–Soil Systems of Facilities Irrigated with Wastewater in Northern China
Researchers assessed heavy metal pollution and health risks in vegetable-soil systems irrigated with wastewater in northern China, finding elevated contamination levels and identifying potential health hazards from consuming vegetables grown in sewage-irrigated facilities.
Interactive effects of microplastics, heavy metals, and soil microecology under different irrigation water sources
Researchers found that using a mix of river water and treated wastewater to irrigate crops led to the highest levels of tiny plastic particles (microplastics) in soil, along with increased amounts of heavy metals like lead and chromium. These microplastics appear to help these harmful metals stick around in the soil rather than being naturally filtered out. This matters because these pollutants could potentially make their way into the food we eat, though more research is needed to understand the health risks.
Occurrence of toxic metals and their selective pressure for antibiotic-resistant clinically relevant bacteria and antibiotic-resistant genes in river receiving systems under tropical conditions
Researchers sampled rivers in the Democratic Republic of Congo receiving hospital wastewater and found high levels of heavy metals, antibiotic-resistant bacteria, and antibiotic-resistance genes in sediments, with several toxic metals strongly correlated with the persistence of drug-resistant microbes — highlighting the need for better urban wastewater management in tropical developing countries.
Many Oil Wells, One Evil: Potentially toxic metals concentration, seasonal variation and Human Health Risk Assessment in Drinking Water Quality in Ebocha-Obrikom Oil and Gas Area of Rivers State, Nigeria
Researchers assessed heavy metal concentrations and seasonal variation in drinking water from an oil and gas extraction area in Nigeria, finding contamination levels that pose significant human health risks including potential neurological and carcinogenic effects.
Revealing Hidden Interrelationships of PFAS-Pesticides-Microplastics in Urban Waters: Integrating Target and Non-Target Chemical Analyses Across Mexico
Researchers found that Mexican urban water sources contain a dangerous cocktail of chemicals including pesticides, "forever chemicals" (PFAS), and microplastics that work together in ways we don't fully understand. The highest contamination levels were found near farming areas where irrigation water mixes with city sewage, and many of these pollutants aren't removed by current water treatment methods. This matters because millions of people rely on these water sources for drinking water, but we're not monitoring most of these chemical mixtures that could harm human health.
Multi-Endpoint Toxicity Tests and Effect-Targeting Risk Assessment of Surface Water and Pollution Sources in a Typical Rural Area in the Yellow River Basin, China
Researchers conducted multi-endpoint toxicity testing of surface water in a rural Yellow River Basin area in China, detecting significant estrogenic activity and genotoxicity in samples near sewage sources, highlighting the cumulative health risks of mixed contaminant exposure.
Interaction of Microplastics and Heavy Metals on Aquatic Organisms : A Review
This systematic review examines how microplastics interact with heavy metals in waterways, finding that plastic particles absorb toxic metals and then release them inside organisms that ingest them. This combination increases the toxicity of both pollutants, leading to DNA damage, tissue changes, and reproductive problems in aquatic life, with potential consequences for human health through the food chain.
Cytogenotoxic potential of a hazardous material, polystyrene microparticles on Allium cepa L.
This study used the onion root test to assess the genotoxic effects of polystyrene microplastics on plant cells, finding that even at relatively low concentrations the particles caused oxidative stress, reduced root growth, and damaged chromosomes. The results indicate that polystyrene microplastics pose hazards to plant genetics, with implications for agricultural soil contamination.
Progress in the Research of the Toxicity Effect Mechanisms of Heavy Metals on Freshwater Organisms and Their Water Quality Criteria in China
Researchers reviewed the toxicity mechanisms of heavy metals on freshwater organisms and the development of water quality criteria in China. The study examines how heavy metal pollution threatens both aquatic ecosystems and human health, and discusses the scientific basis for establishing environmental standards that protect freshwater organisms from harmful contaminant levels.
Toxicity assessment of wastewater from the industrial parks along Yangtze River, China, using a battery of bioassays
Researchers conducted a comprehensive toxicity assessment of industrial wastewater from parks along the Yangtze River using a battery of bioassays, identifying polycyclic aromatic hydrocarbons as key contributors to the environmental health risks detected in the samples.
Using a Battery of Bioassays to Assess the Toxicity of Wastewater Treatment Plant Effluents in Industrial Parks
Researchers used a battery of bioassays to assess environmental health risks from industrial wastewater along the Yangtze River, finding that treatment processes effectively reduced most toxicity endpoints including estrogenic activity, DNA damage, and mutagenicity. Polycyclic aromatic hydrocarbons (PAHs) were identified as the primary chemicals of concern in some wastewater samples.