Articles tagged with Pollution Control
Ozone pollution in China's most populated and industrialized city clusters poses a great challenge due to diverse precursors. Long-term research is necessary to accurately determine main sources of ozone and inform effective control strategies.
A new study published in Environmental Research Letters reveals that a small percentage of industrial facilities are responsible for the majority of toxic pollution year after year. The researchers analyzed data from over 25,000 facilities across 322 manufacturing industries and found that only 1,116 can be characterized as 'super poll...
A device that simulates borehole ballooning has been developed to help prevent serious drilling accidents and irreversible damage. The device can accurately simulate conditions like fracture opening pressures, rock types, and mud circulation pressures, and its experimental results have validated theoretical research on the topic.
A global review highlights broad patterns of environmental pollution's impact on Indigenous groups, primarily through consumption of polluted water and food. Innovative strategies by Indigenous communities aim to limit and abate pollution.
Researchers found that higher tariffs had a small correlation with decreased invasive pest findings, but this impact was not sensitive enough to be a good tactic. Revoking duty-free status on fruits and vegetables is the only way to achieve measurable impact in pest reduction through tariffs.
Research reveals that livestock and poultry farming account for 78.08% of agricultural ammonia emissions in Jiangsu Province, with nitrogen fertilizer application contributing 21.92%. The study suggests focusing on controlling ammonia emissions from these sources to mitigate haze pollution.
A recent study found that reducing sulfur dioxide emissions alone can significantly decrease air pollution, mainly due to the stability of ammonium nitrate formed with nitrogen oxides and ammonia. In China, nitrogen dioxide control is more effective in reducing surface PM2.5 concentrations.
Motorboat noise affects clownfish behavior, leading to increased aggression, hiding, and reduced foraging. The study found that noise-exposed fish had elevated cortisol levels and reproductive hormones, which corresponded with observed behavioral changes.
Research shows that concentrations of nicotine and smoking-related volatile organic compounds spike when moviegoers enter a non-smoking theater, equivalent to up to 10 cigarettes of secondhand smoke. The study highlights the need for regulation and warns of the health risks of thirdhand exposure, especially for infants and children.
Researchers at the University of Freiburg have discovered a novel flavin N5-peroxide that reacts differently than previously known flavin C4a-peroxide, enabling the breakdown of stable chemical compounds and environmental pollutants.
Ultrafine particles (UFPs) formed through photooxidation of organic compounds are a major source of urban pollution. Existing particles inhibit new particle formation, suggesting controlling primary emissions or removing existing particles could worsen pollution.
Higher-density development with more impervious surfaces causes runoff, leading to increased water pollution. Agriculture also contributes significantly to water pollution, and anti-sprawl policies can prevent much-needed land-use changes that reduce pollution.
A comprehensive study by the University of Surrey shows that local activities like construction, vehicle traffic, and domestic heating contribute significantly to Delhi's high air pollution levels. The research highlights a clear trend with higher pollutant levels in winter months, mainly due to crop burning and biomass burning.
China's inland surface water quality improved significantly from 2003-2017 due to reduced pollution emissions in industrial, rural, and urban residential sectors. Annual mean concentrations of chemical oxygen demand and ammonium nitrogen declined by 63% and 78%, respectively, at the national level.
A study published in PLOS ONE found that long-term exposure to hydrocarbons in the air may be a risk factor for ischemic stroke development. The research analyzed data from Taiwan's National Health Institute Research Database and found significant associations between air pollution levels and increased risk of ischemic stroke.
A new study examines how made-to-order production affects consumer behavior, finding that it prompts them to weigh ethical production attributes more heavily. This can lead to stronger feelings of guilt or gratification, which then mediates purchase intentions.
Daily satellite observations show that NOx lifetime decreases even as concentrations increase in 34 cities from 2005-2014. Accounting for these changes is crucial to accurately estimating NOx emissions and understanding the relationship between emissions and concentrations.
Scientists have discovered how red algae adapted to extreme environments by losing genes, allowing them to thrive in diverse habitats. The study's findings may lead to the creation of genetically altered seaweeds and help control invasive seaweed pests.
Researchers Xu Dahai and Chen Junming investigated the physical and chemical origin of secondary fine particles in haze. They defined atmospheric self-purification ability and established equations to analyze key factors forming secondary fine particles, revealing their macro mechanism and synergistic effect. The study provides a quant...
Researchers found that combining stormwater controls with stream restoration results in improved erosion reduction. The study suggests that watershed-scale implementation of stormwater controls is essential for reducing channel erosion and pollutant loading, making it a more effective approach than individual restoration projects.
Researchers evaluated China's success in controlling coal-fired power plant (CPP) emissions, finding significant reductions in air pollution and premature deaths since 2005-2020. The upgrading of end-pipe control facilities and early retirement of small units led to substantial emissions reductions.
A new study found that lower air pollution levels in New York State led to a 67% decrease in premature deaths between 2002 and 2012. Long-term exposure to PM2.5 is linked to respiratory and cardiovascular problems.
Research from the University of Notre Dame finds that private, independent firms have lower carbon emissions and incur fewer EPA penalties than public and private equity-owned firms. The study suggests that increased oversight within public firms may decrease pollution.
A new Portland State University study demonstrates how planting more vegetation, using reflective materials on hard surfaces, and installing green roofs can help cool urban heat islands. The research found that these solutions can make a significant difference in reducing temperatures, even when applied in combination.
Researchers at Sandia National Laboratories have discovered a new avenue for understanding and controlling combustion processes, which will ultimately lead to cleaner engines. By analyzing a massive dataset of flames and fuels, the team identified correlations among chemical intermediates that play a role in pollutant formation.
A recent study found that targeting nitrogen oxides emitted by cars and power plants may increase harmful wintertime air pollution in the US West. Instead, limiting volatile organic compounds could be a more effective way to reduce particulate matter pollution.
A recent study synthesizes research on severe haze pollution in Northern China, highlighting its complex interaction between human activities and atmospheric conditions. The findings suggest that improving haze prediction and developing effective regulatory policies require additional knowledge and public awareness campaigns.
Researchers suggest regional emission control strategies based on acid rain and PM2.5 pollution levels to balance benefits and drawbacks of reduced ammonia emissions.
A study found that roadsides with only hedges were the most effective at reducing pollution exposure, cutting black carbon and ultrafine particles. The researchers suggest planting denser hedges or a combination of trees with hedges in open-road environments to improve air quality.
A comprehensive review assesses growing climate change science, strengthening the Endangerment Finding's conclusion on public health risks. The study highlights new evidence on climate change impacts, including extreme weather events, ocean acidification, and national security threats.
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.