Articles tagged with Water Pollution
A new study found that antidepressant pollution in streams can alter crayfish behavior, including increased foraging and reduced aggression. This change has the potential to disrupt stream ecosystem processes, leading to cascading effects on nutrient flows, oxygen levels, and algal growth.
A study reveals that 60% of lead in Canadian Arctic seawater comes from human sources, particularly historic lead emissions from Europe and Russia. The findings suggest that permafrost melting and coastal erosion will continue to remobilize these contaminants, making lead isotopes a sensitive tracer for pollutants in Arctic seawater.
A study led by the University of Barcelona found increased pollutant concentrations in Franciscana dolphin bone remains, primarily from trace elements such as chromium and copper. The increases are linked to human activities like industrial waste and transportation, which accumulate pollutants in the Rio de la Plata estuary.
A study categorizes existing solutions for combating maritime litter, revealing a need for more developed technologies and integrated approaches. The researchers recommend defining standards for each solution to encourage further development and create a sustainable approach.
Researchers warn that karst aquifers are vulnerable to contamination due to fast infiltration of pollutants during rainfall events. The study highlights the risks of degradable pollutants like glyphosate exceeding safe levels by 19 times.
Researchers develop porous membrane that sequesters up to 99% of phosphate ions from water, making it reusable and efficient. The technology has promise in scaling up to tackle massive environmental problems like eutrophication.
A new study reveals widespread plastic pollution in Galapagos seawater, beaches, and animals, with over 400 plastic particles found per square meter on some beaches. Microplastics were also discovered inside more than half of the marine invertebrates studied, posing a potential threat to the ecosystem.
A recent study finds that countries around the Baltic Sea are not respecting their binding international agreement to reduce agricultural pollution, leading to excess algae growth and eutrophication. The researchers identify shortcomings in compliance with important reduction measures in all nine signatory countries.
A study by UC San Diego scientists reveals that extreme heat and elevated ozone levels have a disproportionate impact on low-income ZIP codes in California. Areas with higher unemployment rates and car traffic are more affected, with increased hospitalizations for respiratory issues.
Researchers found that pollutants can reach groundwater supplies quickly, posing a significant risk to drinking water quality. The study highlights the increased risk of pollution in karst regions with thin soils, such as the Mediterranean region.
A recent study reveals that up to 50% of contaminants reach groundwater before degrading through focused recharge, posing a significant challenge for water and land use management. Focused recharge can lead to higher levels of pollutants in groundwater, exceeding maximum permissible concentrations in Europe.
Researchers found high levels of lead, antimony, and copper in disposable face masks, posing a risk to human health and the environment. The study highlights the need for stricter regulations on mask production and disposal to mitigate these risks.
Researchers at the University of Stirling have developed a new algorithm that analyzes data from satellite sensors to estimate trophic state directly, improving monitoring of issues like harmful algal blooms. This method outperforms current approaches with an accuracy rate of over 90% for highly affected waters.
Research highlights the persistence of plastic waste in deep-sea environments, with potential implications for marine life and the sedimentary record. The study suggests that plastics can survive for thousands of years in ocean trenches, posing a significant challenge to mitigation efforts.
African waters contribute to global fish supply, generating $15 billion for Africa's GDP in 2011. However, climate change and pollution threaten fish stocks, raising concerns about sustainability. A new study uses AIS satellite data to describe spatial characteristics of African and foreign industrial fishing activities.
Researchers at the University of California - Riverside have developed an energy-efficient way to convert corn stover into activated carbon for water treatment. The process produces activated carbon that absorbs up to 98% of vanillin from water, showcasing a promising approach to combating climate change by repurposing idle resources.
Rising freshwater salt pollution poses a significant threat to ecosystem health and human water security, with predicted increases over 50% in US streams by 2100. Researchers have identified opportunities to reduce salt pollution through watershed management, industrial regulation, and household product adoption.
Researchers at West Virginia University are developing a technology to extract rare earth elements from acid mine drainage, producing up to 400 tons annually. This process could help address water pollution and dependence on imports, as the US currently imports nearly all its rare earth elements.
The withdrawal of federal regulation on smaller transboundary waters has left individual states with the responsibility to fill in the gaps, but evidence suggests this may not lead to desired outcomes. Research highlights the flaws in the 2020 Navigable Waters Protection Rule's economics analysis and the failure to account for economic...
A new method introduces faster and more reliable measurement of water pollution by detecting oxygen consumption in wastewater samples. This approach distinguishes between pollutants from sewage and naturally occurring organic matter.
Researchers found a significant positive correlation between December sea surface temperature in the Indian Ocean and haze days in January over the Yangtze River Delta region. The study reveals that favorable local meteorological conditions, including increased air temperature and southerly winds, facilitate haze formation.
Researchers found that 84% of atmospheric microplastics originated from road dust, while 11% came from sea spray and 5% from agricultural soil. Microplastics can re-enter the atmosphere even after settling on land or in water, highlighting a complex plastic cycle.
A global study led by the University of Gothenburg found that groundwater discharges are a major source of nitrogen and phosphorus to coastal waters worldwide, often exceeding river pollution at 60% of sites. This discovery highlights the importance of considering groundwater aquifers in managing coastal water quality.
A recent study by the University of Sydney found that 64% of the world's arable land is at risk of pesticide pollution. The research highlights concerns about human health and environmental impacts associated with widespread agricultural pesticide use, particularly in regions like Asia and Europe.
A review of 126 marine mammal species reveals that accidental capture, climate change, and pollution are driving declines. Conservation efforts have saved some species, but many more are at risk, including the vaquita porpoise and North Atlantic right whale.
A long-term collaboration between scientists and citizen volunteers has documented nitrogen pollution's effects on marine life in Buzzards Bay. The data has informed policies to improve Bay health, with a focus on upgrading wastewater treatment plants.
Scientists found microplastics ranging from two-hundredths of an inch to less than a tenth of an inch long, with polyethylene being the most commonly observed polymer. The study suggests stormwater could be an important source of plastic pollution in oceans and waters.
A COVID-19 lockdown in Northern China led to a significant decrease in nitrogen oxides (NOx) emissions but an increase in ground-level ozone pollution. Researchers found that volatile organic compounds (VOCs) were driving the increased ozone production, as NOx levels scavenged radicals and prevented ozone formation during summer months.
A study by researchers at the University of Bologna found that sea turtles have high levels of plastic debris in their faeces, which can alter their gut microbiota and compromise their health. The Adriatic Sea is a major hotspot for marine pollution, with over 10 million tons of plastic entering the oceans every year.
A 100-year record of water quality trends in the lower Mississippi River was reconstructed by LSU Professor R. Eugene Turner, revealing significant improvements in bacterial concentrations and oxygen content after the Clean Water Act went into effect.
A study by Carlos Duarte and colleagues reveals that human-generated noise pollution is negatively affecting marine animals, altering their behavior, physiology, and survivability. The authors argue that mitigating these impacts through regulation of sources can rapidly decline harmful effects.
The MARLIT app uses deep learning techniques to detect and quantify floating plastics in the sea, achieving an 80% reliability rate. Researchers analyzed over 3,800 aerial images to develop this algorithm, which can aid in assessing plastic pollutants worldwide.
A study analyzing satellite data found that algal blooms in the Red Sea are linked to industrial aquaculture and have increased in frequency and size over recent decades. The researchers developed an algorithm to detect these blooms and propose a real-time monitoring system to protect the marine environment.
Mason researchers will generate census tract-level data for criteria air pollutants using fusions of observational and computer model predictions. The US Environmental Protection Agency sets national standards based on the latest scientific understanding of these substances' impact on health and welfare.
A new study published in Science of the Total Environment reveals mangroves are significantly impacted by plastic pollution from rivers, with 54% of habitats within 20km of a polluting river. River deltas receive 52% of plastic pollution, while rocky shores receive only 6%
Researchers found improved estuarine water quality in the Choptank River, with increased dissolved oxygen, clearer waters, and reduced algae blooms. Local actions, such as upgrades to wastewater treatment plants, contributed to these gains, while agricultural inputs appeared limited.
This study by Guangfa Zhong and Xiaotong Peng presents novel findings on the distribution patterns and dispersion mechanisms of deep-sea plastic waste in a submarined canyon. Plastic litter items are highly heterogeneously distributed, with most occurring in longitudinal litter piles.
Researchers estimate that the Ganges Brahmaputra Meghna River Basin releases 1-3 billion microplastics daily. The study found most microplastics were fibres from clothing materials like rayon and acrylic.
Researchers from INRS develop electrolytic treatment of wastewater to degrade microplastics directly at the source. The technology breaks down microplastics into non-toxic CO2 and water molecules, offering a promising solution for mitigating their environmental impact.
Researchers successfully tracked and sampled a moving microbial community using a trio of self-driving robots in an open-ocean eddy. The study reveals key insights into the behavior of phytoplankton biomass in these dynamic environments.
The study confirms that nutrient imbalance in northeast Asian waters is disrupting phytoplankton species and marine ecosystems. Nitrogen pollutant inflow since the 1980s has led to changes in oceanic conditions, particularly near Ieodo Ocean Research Station.
Researchers found that four commonly consumed mussel species globally contained microplastic particles, with varying levels of contamination. The study reveals the widespread presence of microplastics in mussels worldwide, including those from the North Atlantic and South Pacific regions.
Researchers have discovered that tiny bubbles on electrodes can facilitate electrochemical reactions, leading to faster pollutant removal and chlorine production. The formation of hydroxide anions in the bubble's corona accelerates these processes, making them more efficient than usual.
A new report reveals widespread ocean pollution poses significant human health risks, affecting 3 billion people. The study recommends banning coal combustion and single-use plastics to mitigate these impacts.
Researchers from the University of Exeter and ZSL used GPS and satellite tags in plastic bottles to track plastic pollution in the Ganges river and Bay of Bengal. The study found that plastic pollution can travel thousands of kilometers in just a few months, with some bottles traveling up to 2,845km in 94 days.
A new study successfully tracks 'bottle tags' through the Ganges River system and into the Bay of Bengal, revealing how plastic pollution moves through rivers. The tracking method uses reclaimed bottles with custom-designed electronics, allowing for detailed insights into river transport of plastic pollution.
New research finds that plastics in seawater can cause deformities and developmental problems in sea urchin larvae due to chemical leaching. The study highlights the importance of reducing plastic pollution and finding alternatives to replace harmful additives.
The London International Development Centre Director has led a successful funding bid for a project to filter out pollution in the Nairobi River. The river is ranked among the top ten global waterways in terms of pharmaceutical contamination, posing significant environmental and health hazards.
A new study suggests that reducing aerosol pollution without also cutting carbon dioxide emissions could weaken the ocean's ability to keep the planet cool. This could lead to a shift in the region where most of the ocean is taking up heat, potentially destabilizing the climate.
The four-year project will map the sources of plastic waste, investigate its effects and generate solutions to reduce waste. Researchers will work with governments, businesses and communities to co-design effective ways to cut plastic pollution.
A University of Michigan-led research team found that toxic mercury pollution from fish carcasses reaches the deepest ocean trenches, including the Mariana Trench. The study suggests that most of this mercury comes from human activities, posing a threat to seafood safety and human health.
A Princeton University study has revealed the mechanism by which microplastic particles, like Styrofoam, move through porous media, allowing them to accumulate in food and water sources. The research found that microplastics get stuck when traveling through soil but later break free and continue moving substantially further.
The US EPA has listed 1,4-dioxane as a likely carcinogen due to its persistence in water. Advanced oxidation processes can remove it, but are expensive and energy-intensive. Communities using wells for public drinking water are especially prone to contamination.
A study by the University of York reveals that metal pollution from historic mining is weakening scallop shells, threatening marine ecosystems. The research found that contaminated seabed sediments with zinc, lead, and copper are causing brittle shell thinning, affecting the species' survival.
Researchers have discovered a new form of calcium carbonate that is soft and absorbent, found in mussel shells. They tested its ability to absorb oils and dyes, finding it highly effective but limited by scalability and cost, for potential use in marine pollution cleanup.
A Tel Aviv University study compared disposable dishes made of regular plastic and bioplastic, finding that both had a similar detrimental effect on marine animals. Bioplastics do not degrade rapidly in the marine environment, releasing toxins and harming marine life.
The BlueSwell Incubator Program has selected its first cohort of six startups, which will receive grants and mentorship to support the development of innovative solutions for ocean health and sustainable industries. The program aims to bridge the gaps between innovators, industry experts, and venture communities, with a focus on commer...
A research team led by Ludwig-Maximilians-Universität München found that marine sponges can accumulate microparticles, including plastics and textile fibers, in their tissues. The study suggests that sponges could serve as useful bioindicators for monitoring microscopic pollutants in the seas.
An international team led by the University of Exeter and National University of Singapore is investigating plastic pollution in Southeast Asia's marine ecosystems. The three-year project will assess life cycles and impacts on wildlife, identifying solutions to prevent plastic pollution.
A new study by the Environmental Working Group estimates that more than 200 million Americans could have toxic PFAS in their drinking water. The analysis found high levels of PFAS in major metropolitan areas and dozens of U.S. cities, highlighting the widespread contamination issue.