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20 resultsShowing papers similar to Assessment of potentially toxic elements in groundwater through interpolation, pollution indices, and chemometric techniques in Dehradun in Uttarakhand State
ClearCarcinogenic and non-carcinogenic health risk assessment of river Ganges in different climatic conditions and regions of Uttarakhand, India
Researchers assessed health risks from heavy metals in the Ganges River, finding elevated arsenic at some sites and correlations between physicochemical parameters and metal concentrations.
Spatio-temporal evaluation of trace element contamination using multivariate statistical techniques and health risk assessment in groundwater, Khulais, Saudi Arabia
Researchers assessed trace element contamination in groundwater across 19 sites in the Khulais region of Saudi Arabia over two seasons. Using statistical analysis, they identified both agricultural runoff and natural geological sources as contributors to elevated levels of toxic metals in the water. The health risk assessment found potential non-carcinogenic and carcinogenic risks for local populations who rely on this groundwater for drinking and agriculture.
Heavy Metal Contamination in Surface Water of Harike Wetland, India: Source and Health Risk Assessment
Researchers measured levels of arsenic, cadmium, chromium, lead, and zinc in the surface water of Harike Wetland in India across different seasons. They found that cadmium and lead exceeded safe drinking water standards, particularly during winter months, with industrial discharge and agricultural runoff identified as primary sources. The health risk assessment indicated that these contaminated waters pose potential non-cancer health risks, especially for children.
Sources and Consequences of Groundwater Contamination
Researchers reviewed sources and health consequences of groundwater contamination across India, China, Pakistan, Turkey, Ethiopia, and Nigeria, summarizing both geogenic pollutants (naturally occurring) and anthropogenic contaminants while identifying key gaps in remediation technology and monitoring capacity.
Distribution characteristics of microplastics and potentially toxic elements as co-contaminants in groundwater in mid-Brahmaputra Valley, northeastern India
Researchers found microplastics and toxic heavy metals contaminating groundwater in the Brahmaputra Valley of northeastern India, with polypropylene being the most common plastic type detected. The microplastics appeared to absorb heavy metals onto their surfaces, creating a combined pollution threat, and cancer risk assessments showed that about a third of samples posed potential health risks to children. This study demonstrates that even underground water sources used for drinking are not safe from microplastic contamination.
Cadmium concertation and health risk assessment of ground-water in district Khanewal (South Punjab) Pakistan
Researchers evaluated cadmium contamination in groundwater across Khanewal district, Pakistan, collecting 196 samples from multiple sources and depths across four tehsils, finding that around 90% of samples exceeded WHO limits and that residents face severe carcinogenic health risk based on calculated average daily dose, hazard quotient, and carcinogenic risk metrics.
Environmental pollution indices: a review on concentration of heavy metals in air, water, and soil near industrialization and urbanisation
This review examines how industrial and urban activity raises heavy metal levels in air, water, and soil. Heavy metals from industrial waste, mining, and agriculture can damage cells and increase cancer risk, highlighting the need for comprehensive monitoring near industrial zones.
Environmental chemistry, toxicity and health risk assessment of groundwater: Environmental persistence and management strategies
This review examines groundwater contamination from heavy metals, pesticides, microplastics, and emerging pollutants, assessing health risks and highlighting the need for integrated management strategies to protect this critical freshwater resource.
Micro-essential and toxic heavy metals in surface water of Harike wetland - India
Researchers measured concentrations of both bio-essential (chromium, manganese, iron, cobalt, nickel, copper, zinc) and non-essential (arsenic, mercury, cadmium, lead) heavy metals in surface water of Harike wetland, the largest Ramsar-designated wetland in northern India, using inductively coupled plasma-mass spectrometry. They found alarming concentrations of iron (437.98 ug/L), mercury (4.01 ug/L), and lead (156.72 ug/L), attributing contamination to industrial, domestic, and agricultural inputs from the Sutlej River.
Assessing the impacts of land use and land cover on occurrence, spatial distribution of microplastics and heavy metals in an agricultural watershed, Tadepalligudem, Andhra Pradesh, India
Researchers mapped the occurrence and spatial distribution of microplastics and heavy metals in agricultural runoff from a watershed in Andhra Pradesh, India. They found an average of 41.7 microplastic items per liter, dominated by polypropylene and polyethylene fibers, with heavy metal concentrations of cadmium, arsenic, chromium, and lead posing varying levels of health risk. The study highlights that land use patterns significantly influence both microplastic and heavy metal contamination in agricultural water systems.
Bioaccumulation and potential sources of heavy metal contamination in fish species in River Ganga basin: Possible human health risks evaluation
Researchers assessed heavy metal contamination in seven commonly consumed fish species from the Ganga River basin in India, measuring zinc, lead, copper, cadmium, and chromium levels. They found that chromium, cadmium, and lead concentrations in river water exceeded safe limits at all sampling sites, with the highest metal accumulation occurring in fish liver tissue. The health risk assessment indicated potential long-term hazards for human populations consuming fish from these contaminated river segments.
Evaluation of Soil Pollution Levels in Al-Qadisiyah Governorate, Iraq Using Contamination Index and GIS
Researchers used geo-accumulation index analysis and GIS mapping to evaluate heavy metal contamination from cadmium, nickel, lead, and zinc in 28 soil profiles collected from Al-Shamiyah city in Al-Qadisiyah Governorate, Iraq. They found that cadmium showed the highest contamination levels, ranging from non-polluted to significantly heavily polluted, with nickel concentrations elevated near major drainage infrastructure.
Seasonal Variation of Fe, Mn, and Pb in Groundwater of Northwestern Bangladesh
Researchers analyzed seasonal variations in iron, manganese, and lead concentrations in groundwater across northwestern Bangladesh. The study found that metal levels fluctuated significantly between wet and dry seasons, with some samples exceeding safe drinking water standards, highlighting the importance of seasonal monitoring for groundwater quality in the region.
Geochemical Background and Correlation Study of Ground Water Quality in Ebocha-Obrikom of Rivers State, Nigeria
Researchers assessed groundwater quality in the Ebocha-Obrikom area of Nigeria's Niger Delta, a region heavily affected by oil industry pollution. They measured physicochemical properties and heavy metal concentrations across multiple well water samples over a year-long period. The findings revealed correlations between certain heavy metals and water quality parameters, providing baseline data for monitoring contamination in the region.
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.
Many oil wells, one evil: comprehensive assessment of toxic metals concentration, seasonal variation and human health risk in drinking water quality in areas surrounding crude oil exploration facilities in rivers state, Nigeria
Researchers assessed toxic metal concentrations in drinking water near crude oil exploration facilities in Nigeria, finding seasonal variations and levels exceeding safety thresholds that pose serious health risks to surrounding communities.
Impacts of Land Use Change on Water Quality Index in the Upper Ganges River near Haridwar, Uttarakhand: A GIS-Based Analysis
Researchers assessed water quality in the upper Ganges River near Haridwar using GIS-based analysis, finding that land use changes including urbanization and agriculture significantly impacted water quality parameters along a 78-kilometer stretch.
Assessment of Microplastics and Heavy Metal Contamination in Urban Road Dust: A Case Study from Begusarai, Bihar
Road dust samples from 33 sites across five land-use zones in Begusarai, Bihar, India contained microplastics at all locations alongside elevated heavy metals, with industrial and commercial zones showing the highest combined contamination and estimated human health risks.
A study on various pollutants in water and their effect on blood of the consumers
Researchers tested drinking water supplied to students in Sahiwal, Pakistan and found contamination with toxic metals, pesticides, and arsenic at levels exceeding WHO safety limits, and linked these pollutants to measurable effects in the blood of water consumers. The study illustrates how inadequate water infrastructure and industrial waste disposal create serious public health risks.
Identification Sources and High-Risk Areas of Sediment Heavy Metals in the Yellow River by Geographical Detector Method
Scientists measured heavy metal contamination in river sediments of the Yellow River in Inner Mongolia, identifying industrial emissions and agricultural activities as the main sources. While focused on heavy metals, the research is relevant because microplastics frequently co-occur with and transport heavy metal pollutants in river systems.