Articles tagged with Air Pollution
A landmark study of over 3,400 children found that London's Ultra Low Emission Zone improved lung growth and health, with lung capacity increasing by 10ml per year. The study suggests that clean air zones can benefit child development and should be considered a priority for cities globally.
New Purdue research improves air quality forecasting by understanding how organic aerosol molecules interact and affect evaporation rates. The team discovered that neighboring molecules in aerosol mixtures tend to
North Americans breathed unhealthy air for nearly 106 million person-days as Ontario wildfires exposed people on both sides of the border. Canada's slow fire season intensified within weeks, with Toronto recording the poorest air quality in the world.
Researchers found molecular signs of changes in the blood of people exposed to air pollution, detectable years before diagnosis with lung cancer. The study suggests potential biomarkers for early detection and prevention strategies.
A study published in Annals of the Rheumatic Diseases found a strong association between air pollution, particularly PM2.5, and increased disease activity and flare risk in RA patients. The study suggests that avoiding prolonged exposure to poor air quality may help reduce disease activity.
A new study from Pusan National University reveals that climate-driven changes in vegetation can significantly impact ozone and aerosol pollution in East Asia. The researchers used satellite observations to update vegetation data, finding substantial changes in biogenic emissions and air quality, particularly in suburban areas.
A novel dynamic imine bond adhesive technology enhances commercial filters with improved particle retention and filtration performance, increasing efficiency and lifespan by up to 10-30% and extending filter lifespan by nearly a factor of two.
A study of 997,701 ED visits in Alberta and Ontario found a significant association between wildfire-sourced PM2.5 and a 6% increase in ED visits for migraine and primary headache syndromes. Associations were attenuated in less deprived areas, suggesting that wildfire-sourced PM2.5 may trigger severe headache episodes requiring ED care.
A new review by the University of East London found no direct evidence showing whether domestic gardens reduce pollution levels or improve household air quality. Despite covering vast areas of Britain's towns and cities, researchers discovered a huge gap in understanding the role of domestic gardens on air quality.
A European cohort study suggests that childhood exposure to air pollution at home and school increases the risk of metabolic syndrome. The study found stronger associations with metabolic syndrome risk at school than at home.
A University of Utah-led survey found that 69% of Salt Lake County residents are concerned about the Great Salt Lake's decline, with habitat loss and risks to human health ranking as top issues. Concern varies by social group, birthplace, and personal experiences.
Exposure to even moderate levels of multiple air pollutants during critical stages of pregnancy may increase the risk of preterm birth. The study found that a mixture of ozone and fine particulate matter posed the strongest relationship to early preterm birth.
Researchers found ultrafine particulate matter from cruise ships increases inflammatory signals and weakens cells' defense against viruses like COVID-19. The study suggests exposure to vanadium may facilitate viral replication, with potential implications for infection severity and spread.
A new study led by McGill researchers found that reducing vehicle emissions could prevent over 3,600 premature deaths in Montreal and Toronto. The policy mix includes keeping traffic levels steady and retiring older heavy-duty diesel trucks.
A large study suggests exposure to air pollution during sperm development can impact genes associated with sperm development, chromosomal organisation and cellular quality control. Researchers identified 39 DNA methylation changes linked to air pollution mixtures, including ozone and nitrogen dioxide.
A nationwide study found substantial regional differences in sperm quality, with men in northern Spain recording the strongest semen quality. Lifestyle habits were broadly similar across regions, suggesting environmental exposures may play a role in male reproductive health.
A new study reveals that microplastics in the air can trap heat, making them a previously unknown contributor to climate change. Researchers found that colored microplastics absorb roughly 16% as much heat as black carbon, with an effect equivalent to running 200 coal-fired power plants annually.
Researchers at UC Davis aim to understand how airborne nanoplastics affect human health, focusing on neurotoxicity and pollutant-adsorbed nanoplastics. They'll create a standardized method for measuring and describing the health risks of these tiny plastics.
A new study by University of Wisconsin-Madison researchers suggests that reaching net-zero emissions by mid-century will substantially improve public health in the US. The study found that climate strategies relying less on carbon dioxide removal lead to better air quality and lower premature deaths.
Recent studies have analyzed the residues of fireworks, providing insights into their potential impacts on human health and the environment. The research also highlights the need for better management of pyrotechnics' fallout, including litter, particulate matter, and airborne compounds.
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.
Researchers analyzed cloud and rainwater samples collected over 19 summers at Mount Washington, revealing that rainfall history impacts air pollution as much as wind direction. The study provides a valuable tool for meteorologists to improve predictions over complex terrains, with implications for waterways fed from the mountains.
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...
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.
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 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.
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.
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.
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.
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.
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.
A new study finds that coal pollution reduces global solar electricity output by 5.8%, equivalent to 111 TWh of lost energy, with aerosol-related losses reaching 74.0 TWh annually. This constraint on the clean energy transition underscores the need for pollution control measures to maximize renewable energy output.
A case-control study found associations between ambient particulate matter and nitrogen dioxide exposure and increased risks of Lewy body dementia and Parkinson disease-related dementia. The study's findings suggest air pollution may impact brain health, warranting concern.
A new study finds that satellite launch pollution will account for nearly half of the total climate impact of space sector pollution by the end of the decade. The potent air pollution generated by megaconstellations lingers in the upper atmosphere, decreasing sunlight and having a 500-fold greater impact on the climate.
A three-year research project aims to identify the molecular pathways linking exposure to pesticides and air pollution to Parkinson's disease development and progression. The study will analyze human stem cells, animal models, and genetic analyses to understand how environmental toxins trigger disease onset.
A recent study by ISGlobal and BSC-CNS reveals that combined short-term exposure to major air pollutants in Europe is associated with approximately 146,500 premature deaths per year. Fine particles (PM₂.₅) are the most harmful pollutant, linked to around 79,000 preventable deaths.
A multi-pollutant analysis in Europe reveals that short-term exposure to fine particles (PM2.5) is associated with around 79,000 preventable deaths, followed by nitrogen dioxide (NO2), ozone (O3), and coarser particles (PM2.5-10). The study estimates 146,500 premature deaths per year linked to overall air pollution.
A study found that even low levels of particulate matter in the air increased hospitalization risk for men with kidney diseases. Men aged 19-50 were most at risk, with prolonged exposure to high concentrations increasing the risk of chronic kidney disease and acute kidney injury.
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...
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 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.
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.
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 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.