Articles tagged with Pollution Control
A multicity study found exposure to ground-level ozone and nitrogen oxides increases ED visits for respiratory and cardiovascular diseases. The study analyzed associations between cardiorespiratory ED visits and twelve major air pollutants across five US cities.
A Monash University study found a strong link between air pollution and the development of autism spectrum disorder (ASD) in children. Exposure to fine particles (PM2.5) from vehicle exhausts, industrial emissions, and other sources increased the risk of ASD by up to 78%. The study adds to previous research on prenatal air pollution ex...
A new study suggests that requiring manufacturers to sell nitrogen fertilizers with efficient compounds could reduce air and water pollution from nitrogen use by 16 percent. This approach could earn farmers millions of dollars through higher crop yields and reduce total costs of nitrogen pollution up to $5-7 billion.
The observatory will collaborate with the Center for Climate, Health and the Global Environment at Harvard T.H. Chan School of Public Health to study the impact of pollution on children's health, cardiovascular disease, cancer, and brain function in children. The Observatory aims to mobilize society to see pollution as a serious threat...
A new study reveals China's air quality is worse than the US, Europe, Japan, and South Korea in terms of surface ozone levels. The country experiences more high ozone days than any other nation, posing a significant threat to human health and crops.
Ozone concentrations in US national parks are comparable to those in largest metropolitan areas between 1990 and 2014. Higher ozone levels are linked to decreased park visitation rates during this time period.
RIT will continue to lead the New York State Pollution Prevention Institute (NYSP2I) after a five-year award from the DEC. Since 2008, NYSP2I has made significant economic, environmental and social impacts across the state, including operational cost savings, assistance projects, and research initiatives.
Historical data analysis reveals significant differences in source region contributions to haze under unfavorable weather systems. Policymakers can develop more efficient control plans by incorporating weather system analysis when haze events occur.
Scientists at Tel Aviv University develop a laser beam that traps and moves particles in specific directions using Archimedes' screw-inspired technology. The rotation of the beam determines the direction of particle movement, overcoming a major challenge in laser optical trapping.
Researchers found a 76% slowdown in nitrogen oxide emissions reduction from 2005 to 2015, contradicting EPA predictions of a 16% decrease. The discrepancy was largely due to increased industrial and off-road vehicle emissions while on-road gasoline vehicles declined.
A new study found that coal mining significantly reduces aquatic species abundance and richness in US streams. Despite regulations, mining continues to harm biodiversity, with some watersheds facing irreversible declines.
Mercury is a toxic contaminant with significant health risks to humans and wildlife, primarily through methylmercury in fish consumption. The international treaty on mercury, the Minamata Convention, has been ratified by 84 nations, emphasizing the need for scientific understanding to inform policy decisions.
A University of Utah study finds Arctic clouds highly sensitive to air pollution, with particulate matter spurring cloud formation and amplifying the warming effect. The research suggests controlling airborne pollutants could ease Arctic cloud cover and slow down warming.
New research from MIT suggests the EPA's legislation may have saved over 100,000 lives annually from 2000 to 2010 through a dramatic decline in atmospheric organic aerosol. The study found that human behaviors, such as vehicle emissions and residential burning, likely drove this change.
A recent study found that shutting down a coal-fired power plant significantly improves fetal health in downwind areas. The analysis of birth outcomes showed a 15% reduction in low birth weight and a 28% decrease in preterm births in areas affected by the plant's emissions.
A new study outlines five ways to better manage China's severe air pollution problem, including conducting research on the cause of pollution and creating more effective prevention and control methods. The strategies can be applied to other heavily polluted countries as well.
Researchers from the University of Seville suggest that green roofs could mitigate climate change effects by reducing maximum temperature rises. Installing these gardens on buildings can provide better insulation, leading to energy savings and improved environmental conditions.
A new study published in Environmental Research Letters confirms China's clean air action has reduced PM2.5 concentrations by 21% since 2013. The study estimates that premature mortality related to PM2.5 pollution decreased by 9% due to improved air quality.
A new nationwide study found that people of color were consistently exposed to more air pollution than whites, with a relative gap that persisted across the decade. The study estimated that if non-white populations had breathed lower NO2 levels, it would have prevented an estimated 5,000 premature deaths from heart disease.
Researchers eliminate almost all nanoparticle emissions from some 3-D printers using a new approach that involves enclosing the device with a HEPA filter and printing at low temperatures.
The study introduces the adjoint method to combine NPS term and initial condition inversion, improving model accuracy. The results show that assimilating NPS term is more important than initial value, and the model can be generalized to other regions.
Researchers at Washington University in St. Louis found that controlling car ventilation can significantly reduce pollutant exposure during commutes. Using portable instruments and sensors, they measured pollutant levels inside and outside cars during daily commutes, finding that running the AC reduced pollutants by 20-34%.
Researchers developed a simple, cost-effective way for hospitals to increase their capacity to contain airborne illnesses. By sealing off a hospital wing and adjusting ventilation systems, hospitals can reduce the spread of diseases. The new solution enables small community hospitals to prepare for rapidly spreading airborne illnesses.
Scientists assess invasive alien plant control measures in Kruger National Park, finding shortcomings including inadequate goal-setting and planning. The study recommends prioritizing species based on formal documentation and regular monitoring to optimize funding allocation.
A new study estimates that 12% of global premature deaths related to PM2.5 pollution are caused by emissions in a different region, while 22% are associated with goods produced for consumption in another region. The study highlights the need for international cooperation to reduce air pollution and its health impacts.
A study by UC Berkeley's Haas School of Business found that Mexico City's Saturday driving restrictions have negligible impact on air quality. The program, which restricts vehicles with license plates ending in '5' or '6', did not lead to a decrease in pollution levels for any of the eight major pollutants monitored. Instead, experts r...
Researchers at KAUST developed a catalog of compounds formed during methane combustion, revealing surprising findings on ion formation and behavior. The study proposes improvements to simulate ion formation and behavior, with potential applications in more efficient gas turbines and less polluting power plants.
A new study suggests that implementing techniques such as floor scraping, flushing with water, and using different types of flooring can reduce ammonia emissions from commercial dairy cattle barns by up to 50%. This reduction in pollution could have positive impacts on both the environment and human health.
Researchers developed a new way to drive fluid droplets across surfaces in a precisely controlled manner using temperature differences. The method opens up possibilities for highly adaptable microfluidic devices and de-icing technologies.
Reducing ozone and fine particulate matter to protective levels could save 9,320 lives annually, reduce serious illnesses by 21,400, and decrease impacted days by 19.3 million. The study highlights the benefits of stricter standards in metropolitan areas with high air pollution concentrations.
Researchers found a strong link between pesticide exposure and the development of amyotrophic lateral sclerosis (ALS), a progressive neurodegenerative disease. Pesticide exposure was associated with increased risk in survey data and blood measurements, highlighting the need for further studies on environmental factors.
A study by researchers at the Heart Failure Center of the University of São Paulo suggests that wearing a respirator mask can lessen the impact of vehicle emissions on people with heart failure. The results also indicate that this type of mask can reduce the risk of developing cardiovascular disease for healthy individuals.
A new mechanism reveals counterintuitive rules for individual movement in crowds, with implications for controlling active systems, such as nanoparticle delivery and crowd security. Researchers plan to apply their findings to develop intelligent nanorobots for drug-delivery and environmental sustainability.
A study by the University of Maryland Center for Environmental Science found that emissions controls on coal-fired power plants reduced mercury levels in the air by up to 75% over a 10-year period. This reduction was strongly correlated with power plant emissions from Ohio, Pennsylvania, and West Virginia.
A new study suggests that managing resources to minimize variability can lead to unintended consequences, such as fish stocks collapsing and grasslands being replaced by shrubs. By allowing for some degree of natural variability, adaptive management approaches can help sustain ecosystems over time.
A new study provides more accurate estimates of worldwide mercury pollution, revealing Asia produces over double the previous estimated amount. The research uses a top-down approach combining measured air concentrations with a global simulation to calculate mercury emissions, improving estimates and refining pollution-control strategies.
A study by Oregon State University found that mercury emission controls at a coal-fired power plant also reduced concentrations of polycyclic aromatic hydrocarbons (PAHs) by 40-72 percent. The air pollution reductions were attributed to the upgrade's impact on regional emissions.
Research during the Beijing Olympics found a correlation between reduced air pollution and higher birth weights among pregnant women. The study suggests that pollution may interfere with fetal growth, particularly in late pregnancy.
Researchers found that a simple column of common soil can reverse the toxic effects of urban runoff, killing young coho salmon and their insect prey. The affordable treatment offers new promise for controlling toxic pollutants in rivers, streams, and oceans.
Researchers created a reversible laser tractor beam that can repel and attract particles, moving them up to 20 centimeters with a single laser beam. The technique uses energy heating and polarization control to manipulate particles, offering new possibilities for atmospheric pollution control and tiny particle retrieval.
Scientists at the University of Manchester have identified a novel process for lowering pollutant toxicity using vitamin B12, offering new hope for combating hazardous substances. The research builds on 15 years of investigation into natural organisms that can detoxify pollutants.
A new study by Duke University researchers suggests that water-quality trading programs can significantly lower costs of achieving Clean Water Act goals. By allowing polluters to buy, sell or trade credits, these programs can reduce pollution in river basins and estuaries faster and at a lower cost than requiring facilities to meet com...
The new NASA images demonstrate a significant reduction in nitrogen dioxide levels across the United States over the past decade, indicating improved air quality. This decrease is attributed to regulations, technological advancements, and economic changes, despite increasing population and vehicle numbers.
The Hudson River has undergone significant changes in its flow, chemical composition, and ecology over the past quarter-century. A 40% increase in freshwater flow has countered the effects of higher temperatures, while pollution levels have decreased, prompting rapid evolutionary responses in certain species.
A Los Alamos National Laboratory team verified air pollution and greenhouse gas emissions from two coal-fired power plants in the Four Corners area using space-based techniques. The study found that emissions from the San Juan Generating Station are less polluting than those from the nearby Four Corners Generating Station.
Researchers investigate the impact of Saharan dust on ground-level pollution in Houston, with a focus on regulatory limits and measurable air quality. They plan to use samples collected in Barbados and Houston to confirm previous findings.
High pollutant concentrations in Guánica Bay's sediments pose a significant threat to coral reefs and marine life. The study provides an ecological baseline for improved watershed management.
Researchers investigated thallium's geo-chemical speciation and partitioning during industrial processes. The study found that 40% of Tl in pyrite minerals is active, leading to significant environmental pollution with serious implications for aquatic systems.
Researchers discovered that organic compounds from pollution and forest emissions can increase cloud droplets, making clouds brighter and affecting climate. This effect is significant enough to counteract the uncertainty in pollution's impact on clouds.
Researchers found a positive correlation between out-of-hospital cardiac arrests and exposure to both fine particulate matter and ozone in Houston. Daily average increases in particulate matter raised OHCA risk by 4.6 percent, while short-term increases in ozone level increased risk by 4.4 percent.
Researchers found that children exposed to second-hand smoke in cars experience a significant increase in harmful pollutant levels, exceeding those found in restaurants and bars. This highlights the need for stricter regulations on smoking in vehicles carrying children.
A new study reveals that Caribbean seaweeds bloom four times faster than their counterparts in the Pacific Ocean, giving them an upper hand over corals. This could lead to reduced coral recovery after damage, posing a significant threat to Caribbean coral reefs.
Researchers measured environmental air pollutants and biomarkers for systemic inflammation and thrombosis before, during, and after the 2008 Olympics. Concentrations of particulate and gaseous pollutants decreased substantially, but ozone concentrations increased.
Researchers argue that focusing on short-lived climate pollutants, such as soot and ozone, could deliver tangible local benefits and generate swift global benefits. The authors believe a combination of top-down and bottom-up approaches can implement this new strategy.
Researchers found that fungi can transform lead into pyromorphite, a more stable mineral form, which could be useful for cleaning up lead-polluted sites. The discovery suggests that introducing fungi may be a viable treatment option for containing lead in contaminated soils.
Scientists found that rain and wind contributed significantly to reducing pollution levels in Beijing during the 2008 Summer Olympics. Emission controls implemented by Chinese officials were complemented by natural factors, highlighting the importance of regional-scale controls to achieve long-term reductions.
Researchers have identified four toxic molecules used by certain species of seaweed to harm corals, which could inform management techniques to protect fish that consume these harmful seaweeds. The molecules are from a class of organic compounds known as terpenes and were found to be active at very low concentrations.
Scientific studies show mercury concentrations in inland lakes and rivers exceed EPA health criterion, affecting fish and wildlife populations. Research indicates improvements in air emission controls have slowed mercury contamination, but some areas still pose serious risks to human health.
Researchers at NOAA and CIRES found that controlled burns during the Deepwater Horizon oil spill released massive amounts of black carbon into the atmosphere, with estimates suggesting 1.4-4.6 million pounds of pollution sent into the Gulf's atmosphere over a 9-week period.
Researchers will integrate traffic flow and air quality monitoring using wireless computer networking to recommend alternate routes via on-board navigation devices. The technology aims to enhance existing solutions and close the loop between centralized management, navigators, and drivers.