Articles tagged with Air Pollution
Scientists at Tampere University identified a new chemical process that can influence the formation of air pollution particles in urban environments. Nitric oxide is found to promote the conversion of certain volatile compounds into aerosol precursors, challenging existing assumptions.
A new study finds that approximately 15% of current global warming is attributed to 'indirect greenhouse gases,' including carbon monoxide and nitrogen oxides. The authors call for integrating these gases into climate policy frameworks, emphasizing their significant impact on warming.
A Stanford-led study suggests that burning 500,000 acres of California conifer forests each year with prescribed fire could cut deadly pollution from wildfire smoke by roughly 10% over a decade. The risk of very severe fires immediately drops 92% in areas burned in low-severity fires, with risks remaining lower for up to a decade and e...
Researchers found that long-term exposure to air pollution is associated with more advanced coronary artery disease, even at moderate levels. The study analyzed data from 11,128 adults and found that exposure to fine particulate matter and nitrogen dioxide increased the risk of coronary artery disease.
A new study reveals that wildfires have led to a decade-long reversal of ozone mitigation efforts in the US. Exposure to surface ozone from wildfires contributes to thousands of additional premature deaths each year.
A new study by researchers at UC Davis Health and Kaiser Permanente found that long-term exposure to fine air pollution particles (PM2.5) is associated with lower semantic memory, a type of brain's encyclopedia. The study analyzed data from 740 adults aged 53-94 and found no impact on executive function or verbal episodic memory.
A new UV dual-comb spectrometer detects harmful gases with unrivalled accuracy and sensitivity, enabling fundamental insights into formaldehyde's properties. The compact design makes it suitable for mobile measurements in cities and industrial areas.
A recent review of decades of air pollution studies found that exposure to PM2.5 may harm heart health even at concentrations below EPA guidelines, affecting cardiovascular disease rates worldwide. Certain populations are particularly vulnerable, and increasing public awareness is key to preventing exposure.
Researchers from Virginia Tech found that airborne particles have an outer alkaline shell, contradicting the traditional view of uniform droplets. This discovery has significant implications for understanding air quality and climate change.
A new study finds herbal cigarettes can be as damaging as tobacco cigarettes, emitting comparable or even more harmful emissions. Fine particles and oxidative potential were measured, revealing a significant risk to cardiovascular and respiratory health.
China's air quality has shown significant improvement in 2025, with a decrease in PM2.5 and O3 concentrations compared to the 2022-2024 average. However, high-impact air pollution events such as severe pollution episodes, dust storms, and compound pollution events remain major challenges.
A research team used satellites to quantify sulfur dioxide (SO₂) emissions from the March 2026 refinery fires in Tehran, Iran. Total emissions were estimated at 2.98×10^4 tons, with peak concentrations reaching 2.0 DU.
A study led by NTU Singapore found that land-use changes across Southeast Asia contribute to thousands of excess deaths annually due to worsening air quality. The estimated 13,000 excess deaths in 2018 were linked to forest degradation and deforestation, accounting for nearly 30% of the total deaths.
Researchers found that wildland-urban interface fires release distinct pollutants, including toxic metals and PFAS, which can penetrate deep into lungs. These particles differ from ordinary urban pollution and biomass-only wildfire aerosols, highlighting the need for monitoring and cleanup strategies tailored to fire composition.
Common air pollutants can alter both brain and respiratory function within four hours of exposure, according to a new study. The source of the pollution matters more than its quantity, with different pollutant sources producing varied health effects even at identical concentrations.
Experts from Mount Sinai will present a new AI model that predicts lung nodule risk and assesses the impact of air pollution during pregnancy. The researchers also explore cognitive consequences of sleep-disordered breathing and reevaluate asthma guidelines to integrate both conditions.
A Peking University study found that population ageing, not just air pollution, contributes to rising dementia deaths in China. Lower PM2.5 levels have brought health benefits, but the rapid growth of China's older population offsets progress.
Research finds association between high air pollution and increased risk of post-surgical complications, including sepsis, pneumonia, and surgical wound infection. Higher levels of PM2.5 air pollution above EPA daily limits increase risk by 8%.
A PolyU research team discovered that low concentrations of bacterial toxins in urban air can trigger nearly 20% of inflammatory responses, while drug-resistant fungi may spread through everyday breathing or skin contact. The study highlights the need to identify and control these highly toxic trace components to effectively reduce hea...
A new study published in Communications Sustainability reveals that investing in renewable energy yields more combined climate and public health benefits than direct air capture. The analysis models the health and climate benefit of cost-equivalent deployments of DAC, solar, and onshore wind across US grid regions from 2020 to 2050.
A national survey of Australian tunnel construction workers found significant silica dust exposure risks, with many reporting barriers to effective dust control measures. The study calls for stronger regulatory enforcement and oversight to prevent preventable disease in the high-risk industry.
A study by King's College London found that babies exposed to high levels of air pollution in the womb show slower signs of development at 18 months compared to those exposed to lower levels. This is particularly true for premature babies, who experience poorer motor and language skills.
A recent study has found a significant link between ambient air pollution and an increased burden of respiratory infections in the first year of life. The Immune Development in Early Life (IDEaL) Rome Cohort study suggests that exposure to urban pollutants during infancy may fundamentally shape immune resilience, leading to a higher ri...
Scientists calculate that high leakages of ozone-depleting substances from feedstocks could delay ozone recovery by about seven years. The Montreal Protocol made an exception for the use of these substances in producing other materials, but recent estimates suggest higher leakage rates than initially thought.
Research reveals OH concentrations in China, Europe, and US are 300% higher than in clean regions, linked to increased NOx emissions. The study's observation-based approach provides a reliable characterization of long-term hydroxyl changes, shedding light on the impact of human activities on atmospheric oxidation capacity
A long-term study found children living near the Salton Sea have slower lung function growth, with effects comparable to freeway exposure. The researchers controlled for various factors and found that dust exposure was linked to lower lung capacity, suggesting potential long-term health implications.
Emissions of nitrogen oxides (NOx) and carbon monoxide (CO) in Salt Lake City have declined significantly over the past two decades, driven by improved vehicle technology and emission standards. Meanwhile, levels of carbon dioxide (CO2), a major contributor to climate change, have remained relatively steady.
A new study finds that dairy manure digesters are highly effective in reducing methane emissions from cow manure, with most systems performing well. However, occasional leaks of large magnitude offset the climate benefits, highlighting the need for thorough monitoring and verification.
A new study finds that air pollution alerts issued in China's cities significantly reduce PM2.5 levels and prevent nearly 54,000 premature deaths over a five-year period. The alerts trigger short-term actions to limit pollution, resulting in a 30-40% reduction in acute mortality risk due to PM2.5.
Two studies led by Boston University School of Public Health researchers found that people living in redlined neighborhoods were less likely to conceive than those in favorable areas. The findings suggest that historical practices like redlining continue to influence reproductive health disparities in present-day communities of color.
The study found a significant reduction in NO2 levels, but limited effect on PM10 and PM2.5 particles within the LEZ. The results indicate that the zone contributes to improving air quality, highlighting the need for additional measures.
A new study reveals that socioeconomic factors and renewable energy adoption significantly influence the risk of mortality related to air pollution in Europe. Regions with lower GDP per capita and poverty rates, particularly in Southern and Eastern Europe, experienced a higher risk of mortality associated with air pollution.
A new study found that high levels of air pollution can amplify the risk of suicide associated with heat stress, especially during the warm season. The researchers analyzed 7,500 suicide cases in Utah and found a strong synergistic effect of heat and nitrogen dioxide.
In England, over a third of councils face industry legal threats for clean air campaigns; the stove industry lobbied local authorities to ignore public health risks. Key findings include wood burning's significant contribution to fine particle air pollution and its link to various health conditions.
Low-smoke fuels produce a two- to three-fold increase in ultrafine particles, even as total mass of particulate emissions is reduced. UFPs penetrate deep into the respiratory tract and induce severe pulmonary inflammation, promoting higher lung and alveolar deposition.
Researchers found that microbes can use mercury sulfide nanominerals as an energy source, releasing volatile elemental mercury into the air. The study estimates that this process could release hundreds of tons of mercury per year, comparable to cement production.
A new mechanochemical approach uses water as a catalyst to transform renewable resources into high-performance porous materials capable of capturing CO2 while removing pollutants. The method produces carbon-negative materials with exceptional hydrophobic characteristics and scalable production.
New research reveals that house fires release harmful compounds into the air, with synthetic materials like plastics and insulation contributing to higher levels of VOCs. However, their impact is often muted due to their small composition fraction in a typical home.
A nationwide Japanese study of 270,000 patients found that widespread mask-wearing during the pandemic significantly lowered PM2.5-associated risk of MINOCA, a non-obstructive type of heart attack. The study suggests that simple protective measures like mask use can mitigate cardiovascular risks associated with air pollution.
A large cohort study found that air pollution exposure increases the risk of Alzheimer's disease, particularly in individuals who have experienced a stroke. The study suggests that improving air quality could be an important way to prevent dementia and protect older adults.
Researchers have developed a new method for cleaning oil spills using massive fire whirls, which can burn through crude oil nearly twice as fast as in-situ fire pools. The results show that fire whirls produce 40% less soot and consume up to 95% of the fuel, leaving fewer harmful particles behind.
A study by Leibniz Institute for Tropospheric Research found that particulate matter concentrations depend heavily on height above ground level. Drone measurements supplemented with standard data improved air quality models and strategies to combat air pollution.
A new study by Cardiff University reveals how ambitious climate action can save up to 1.32 million lives per year by 2040 by addressing global air quality inequalities. The research highlights the importance of cross-border pollution exchanges in achieving health benefits and reducing inequality between countries.
A new collaborative study evaluates potential dust control measures for the Great Salt Lake, considering effectiveness, cost, water demand, maintenance needs, and ecological impacts. The analysis emphasizes the importance of long-term planning, sustained maintenance, and careful consideration of unintended consequences.
Scientists have uncovered practical strategies that can significantly reduce harmful air pollution from composting while improving the quality of organic fertilizers. Biochar emerged as the most effective single solution, consistently reducing ammonia and nitrous oxide emissions while enhancing nitrogen retention.
Reducing air pollution levels may help delay and mitigate physical disability in aging adults, according to a new study published in JAMA Network Open. The findings suggest that lower air pollution levels are associated with slower progression of physical function limitations and disability.
A drone equipped with low-cost air quality sensors has revealed unexpectedly high concentrations of particulate matter at around 100 meters above ground level in Delhi. The findings suggest that current model simulations underestimate PM2.5 mass concentrations during morning haze episodes, highlighting the need for better mitigation st...
A new study reveals that China's construction sector is a significant driver of premature deaths due to ambient fine particulate matter (PM2.5) exposure. The research estimates that around 1.1 million premature deaths were caused by construction-related emissions in 2019.
A recent study by PLOS reveals that large increases in PM2.5 exposure from wildfires have overshadowed gains made in reducing air pollution disparities in traditional sources, particularly among California's racial groups.
Researchers create novel contactless electricity generation technique leveraging electrostatic charges and viscous force of compressed air. The device generates high ESD-based outputs, powering electronic devices and regulating humidity.
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.
Researchers found clouds in North Atlantic region formed with fewer, larger droplets, yet remained unchanged in reflectivity; overall water content increased to maintain balance.
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.