Articles tagged with Air Quality
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Researchers found that aged vape plumes in indoor environments contain fine particles with metals and highly reactive compounds, producing radicals that might damage lung tissue if inhaled. Repeated exposure to these plumes could negatively impact lung health, especially for individuals with pre-existing conditions.
A global strategy is required to address the issue of reduced ozone decline despite decreased emissions of precursor pollutants in North America and Europe. The study found that increased transport of ozone from abroad is the main driver of the weaker-than-expected decline of ozone levels.
A new study provides a tool to quantify responsibility for PM 2.5 pollution, highlighting the impact of cross-state pollution on public health. The research highlights inequality in pollution across US states, with some facing disproportionate health risks and responsibilities.
A new study from the University of Birmingham found that air frying fatty foods produces fewer VOCs and ultra-fine particles compared to other cooking methods. However, repeated use without cleaning can negate some benefits for indoor air quality.
Residential wood burning accounts for over one-fifth of wintertime exposure to outdoor fine particulate matter, linked to increased risks of heart disease and premature death. By reducing indoor wood burning, Americans could decrease outdoor air pollution and save thousands of lives.
A new study using satellite data confirms that California's shift to electric vehicles is making measurable differences in air quality and public health. For every 200 ZEVs added, nitrogen dioxide levels dropped 1.1%.
A new study from the ECHO Program found that exposure to fine particulate matter (PM2.5) and nitrogen dioxide (NO2) before and after birth may influence childhood blood pressure patterns. High blood pressure in children is a growing concern worldwide, with nearly 80% increase over two decades.
Researchers developed a new way of measuring indoor air pollution by analyzing human movement, showing elevated levels of pollutants during occupied periods. The study provides a new approach to designing healthier indoor spaces, combining Birmingham's air-pollution expertise with radar-based sensing and optimization techniques.
A recent study by Cornell University found that NYC congestion pricing has led to significant air quality benefits, including a 22% reduction in particulate matter 2.5 micrometers in the Congestion Relief Zone, as well as declines across the city's five boroughs and surrounding suburbs.
A large-scale study of over 11,000 adults found that even low-level air pollution is associated with advanced coronary artery disease, often before symptoms appear. Long-term exposure to fine particulate matter and nitrogen dioxide was linked to higher calcium scores and more severe narrowing of the arteries in both men and women.
Researchers found that sea salt particles interact with urban pollution, chemically reacting to form toxic compounds. After the COVID-19 lockdown, reduced pollution allowed more naturally occurring sea salt components to persist, offering potential implications for human health and climate.
Research by University of Birmingham scientists reveals that lower-income individuals are more likely to own cheaper, higher-emitting vehicles contributing disproportionately to local urban air pollution. Spending an additional £10,000 on a diesel vehicle is associated with a 40% reduction in nitrogen oxide emissions per litre.
The ATP-DEC calculator provides accurate and transparent information on carbon disclosure, helping align aviation with climate targets. It captures real-world variations and life cycle emissions, making it a crucial tool for policymakers, airlines, and passengers.
A study published in npj Clean Air found significant reductions in NO2 and NOx pollution following the introduction of ULEZ in 2019. The team also found that the benefits extended beyond the designated zone, indicating a wider spill-over effect.
A new study reveals that limiting temperature overshoot can prevent hundreds of thousands of premature deaths while avoiding trillions of dollars in economic damages. The research found significant health benefits by improving air quality, particularly in regions with high population density.
Johannes Lelieveld's research on air quality, emissions, and climate change has demonstrated the interconnectedness of these issues. His work provides new insights into human health risks and informs policy decisions to address pressing societal challenges.
Researchers found a strong link between compound droughts and wildfires in California, leading to increased fine particulate matter (PM2.5) concentrations. The study shows that severe droughts can substantially raise wildfire risk, with PM2.5 levels increasing by 9.5·m³ under extreme conditions.
Researchers found tiny air pollution particles sticking to red blood cells after exposure to roadside pollution, which can travel to organs like brain and heart. Wearing an FFP2 face mask reduces the amount of particles stuck to red blood cells.
A new study reveals that wildfire smoke particles act like tiny chemical factories under sunlight, generating peroxides and other pollutants. This overlooked chemistry means current models are underestimating the impact of wildfires on air quality and climate.
Research from Colorado State University reveals how wildfire smoke combines with existing particulate pollution to create secondary, often more toxic, pollution and contribute to ozone formation. The study found that 90% of aerosol pollution over NYC is sensitive to at least one aspect of global changes, such as high temperatures.
A multi-national study found that higher levels of air pollution are linked to worse symptoms of obstructive sleep apnea (OSA) in European patients. The study revealed a modest but measurable increase in the apnoea hypopnea index (AHI) for every one unit increase in PM10 concentration.
Research presented at the European Respiratory Society Congress found that a healthy diet rich in fruits and vegetables can partially mitigate the adverse effects of air pollution on lung function. Women who consumed four portions of fruit per day or more appeared to have smaller reductions in lung function associated with air pollution.
Exposure to lower levels of air pollutants is associated with improved vision in children, suggesting that reducing exposure could slow the progression of myopia. Children who live in areas with cleaner air have better vision, especially younger students.
A new study reveals that small electric charges between particles play a crucial role in forming highly concentrated clusters in turbulent environments. This discovery has significant implications for climate research, medicine, engineering, and science, enabling better predictions and controls.
A growing body of research links environmental pollutants to worsened health and shorter life spans in childhood cancer survivors. The study found that only 25% of pediatric oncology providers felt comfortable discussing environmental pollutant impacts with patients.
A federally funded study found children with leukemia who were exposed to pesticides during their mother's pregnancy had a higher risk of death. The study, published in Cancers, examined over 800 children and showed pesticide exposure increased child mortality by up to 60%.
Compound heat and air pollution episodes are becoming more frequent and intense in US cities, posing a significant threat to public health. The study found that urban areas experience more frequent overlaps of extreme heat with harmful air pollutants than surrounding rural areas.
A major new study quantifies the health impacts of outdoor air pollution from US oil and gas activities, revealing widespread disparities in exposure and health burden across racial and ethnic groups. The research estimates 91,000 premature deaths annually, with Black, Asian, Native American, and Hispanic populations most affected.
Researchers found a strong correlation between industrial pollution exposure during pregnancy and the risk of intellectual disabilities in grandchildren. A study using Utah Population Database data revealed that grandmothers' prenatal exposures can increase the risk of intellectual disabilities in their grandchildren's children.
A new study suggests that exposure to wildfire-derived PM2.5 is linked to increased mortality and morbidity, with a 93% underestimation of the actual death toll. The research estimated 535 annual deaths from all causes due to short-term exposure to wildfire smoke.
Combining federal monitors, low-cost sensors, and satellite data can provide a more complete picture of local air quality, enabling people to make safer choices in real-time. The study highlights the importance of timely and accurate air quality information during wildfire events.
A recent study analyzed hourly data from nearly 750 low-cost and regulatory air pollution sensors throughout LA to understand the impact of wildfires on air quality. The findings suggest that combining different data sources, including ground-based sensors and satellite data, can provide more accurate and comprehensive information.
Research shows that the 2025 Los Angeles wildfires resulted in an estimated 440 excess deaths, while the 2023 Maui wildfires led to immediate increases in suicide and overdose deaths. Higher social support was linked to improved mental health outcomes but did not buffer physiological effects.
A new study published in JACC found that using portable HEPA air filters at home can significantly lower systolic blood pressure in adults with elevated readings. The study found an average 2.8 mmHg reduction in SBP after one month of HEPA filtration.
A team of researchers from Chung-Ang University has developed an innovative air filter that mimics the way mucus-coated nasal hairs trap particles, achieving remarkable filtration efficiency. The particle-removing oil-coated (PRO) filter is a significant leap forward in air purification, offering improved performance and sustainability.
Researchers at Carnegie Mellon University developed a low-cost, long-lasting indoor formaldehyde sensor with a unique polymer coating. The coating extends the sensor's half-life by 200% and enables it to regenerate when performance degrades.
A new study finds that cleaner air in East Asia, particularly China, has contributed to the recent acceleration in global warming. The region's aerosol reductions account for most of the observed warming since 2010, even after accounting for natural fluctuation events.
Researchers found that sewage spills from land to sea coincided with winds of at least 6.5m/s on 178 days within a two-year period, potentially sending microplastics into the air. The study suggests that coastal towns and cities may be exposed to billions of airborne microplastic particles.
Researchers used a data-driven approach to filter out ideal tree species for urban forests, mapping carbon stock and biogenic volatile organic compounds (BVOCs) emissions of six dominant urban tree species in Beijing. The study identified two optimal species: Betula platyphylla for high-altitude areas and Robinia pseudoacacia for urban...
Research using cardiac MRI found that long-term exposure to air pollution is associated with early signs of heart damage, including diffuse myocardial fibrosis. The study suggests that fine particulate matter in the air may contribute to changes in the heart structure, potentially setting the stage for future cardiovascular disease.
Prescribed burns contribute to significant air pollution in the southeast, particularly in minority and low-income areas. Climate change may exacerbate these impacts as fewer burn days become available.
A new study from the University of California, Riverside shows that sealing manure ponds at a Central Valley farm can dramatically reduce atmospheric methane emissions. The researchers found that this method can achieve an 80% reduction in emissions, comparable to California state officials' climate planning estimates.
Aged desert dust particles have been found to facilitate the formation of secondary organic aerosols (SOA), a major component of airborne particles, in dusty areas. This finding challenges conventional wisdom and could account for up to two thirds of SOA in such regions.
A nationwide study reveals that methane leaks from energy-intensive states like Texas lower air quality for people in neighboring states. Strong environmental regulations are shown to reduce hazardous gas leaks and improve safety.
Researchers found that adopting new digital systems to help oceangoing container ships get in line to offload their cargo at busy ports reduces greenhouse gas (GHG) emissions by 16-24%. This intervention is cheap and utilizes existing technology.
Researchers at the University of Utah found that outdoor air pollution from wildfires and dust events can infiltrate buildings using commercial HVAC systems with air-side economizers. However, indoor air quality remained good overall, and portable air filters can be an effective solution.
Exposure to lingering fine particulate matter from wildfire smoke was associated with increased hospitalization risks for various cardiorespiratory conditions, including ischemic heart disease and respiratory diseases. The study's findings highlight the need for research into the long-term health impacts of wildfire smoke.
A nationwide study by TU Graz found that 75% of Austrian classrooms exceeded the daily average CO2 concentration limit, with some reaching levels almost seven times the guideline value. Regular ventilation can reduce not only CO2 but also airborne disease transmission risk.
Researchers developed a new computer modeling approach to simulate the behavior of tiny nanoparticles in the air, improving accuracy and efficiency. This could lead to better monitoring of air pollution and more precise ways of predicting its effects on human health.
A NTU Singapore study found that robust air pollution control measures can prevent 36,000 ozone-related premature deaths annually in Southeast Asia by 2050. Implementing stringent emission reduction measures could drop annual deaths by 22,000 under a business-as-usual scenario.
The University of Texas at Arlington researcher Yunyao Li has been selected by NASA to develop a system that provides early warnings of hazardous air pollution from wildfires. The project aims to enhance wildfire air quality forecasting capabilities and develop tools for decision-making processes related to health management.
A new study assesses the tradeoffs between clean air and clean water, finding that boiling contaminated water generally outweighs health risks from air pollution. The research supports prioritizing household access to clean water, especially for young children.
A recent study from POSTECH University evaluated ground-level NO2 concentrations using satellite remote sensing data, revealing significant socioeconomic disparities in air pollution exposure. The research found that areas with higher socioeconomic levels had higher NO2 concentrations, contradicting previous findings in other countries.
Researchers found that atmospheric mercury levels have decreased significantly due to reduced human-caused emissions, mainly attributed to the Minamata Convention. The study also revealed that soil emissions now make up a larger fraction of total mercury emissions, with re-emissions from soil posing a future challenge.
Researchers found that drastic reductions in greenhouse gas emissions could significantly reduce deaths from poor air quality, particularly in deprived regions of Europe. The study suggests that strong climate mitigation would also lead to a more equitable burden of air quality mortality across the continent.
A new study found that over 50 million people in the US live in counties with no air-quality monitoring, increasing their exposure to air pollution. Rural areas, particularly those in the Midwest and South, were more likely to lack monitoring sites, often due to poverty and limited access to healthcare.
A new study found that electrifying the Caltrain commuter rail line reduced riders' exposure to black carbon by an average of 89%, cutting excess cancer deaths by 51 per 1 million people. The study's findings support the case for electrifying U.S. rail systems, which still rely on old diesel locomotives.
A new study by Carnegie Mellon University researchers found that smoke from US wildfires and prescribed burns caused $200 billion in health damages in 2017, resulting in 20,000 premature deaths. Senior citizens were disproportionately affected, with Native American and Black communities experiencing the greatest harms per capita.
A study by Barcelona Institute for Global Health estimates that reducing motorized traffic in the city would lead to a 17.6% reduction in nitrogen dioxide levels and prevent nearly 200 premature deaths annually. The addition of port electrification could further increase avoidable deaths to 228 per year.
Researchers developed a low-cost, durable DIY air cleaner that works as well as HEPA filters to clear indoor air pollutants. The Corsi-Rosenthal Box, comprising common HVAC filters, performed as well or better than comparable HEPA filters in removing particles from the air.