Articles tagged with Air Pollution
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Seasonal air pollution may contribute to asthma emergency department visits even in areas with generally low pollutant levels. The study used Bayesian time-stratified case-crossover models to examine associations between air pollution and asthma seasons.
The study found that the ban of heating oil #6 was effective in reducing fine particles, nitrogen dioxide, and sulfur dioxide levels in NYC. The reductions were independent of other sources of air pollution, suggesting a significant impact on public health outcomes.
A large-scale epidemiologic study in China identified links between long-term exposure to ambient air pollution and metabolic-associated fatty liver disease (MAFLD). Long-term exposure to air pollution may increase the risk of MAFLD, especially in individuals with unhealthy lifestyles and central obesity.
Researchers used creative methods to explore perceptions of air pollution with local communities in Nairobi's informal settlements. They found contrasting definitions of air pollution and differing views on who was responsible for solutions.
A recent study found associations between air and water pollutants and changes in the human sex ratio at birth. Pollutants such as PCBs, iron, lead, and chromium were linked to an increased or decreased ratio of baby boys to girls.
Research found a significant correlation between increased atmospheric temperature and asthma attacks in children. Lower SO2 levels during the state of emergency also contributed to reduced asthma exacerbations, suggesting that environmental factors play a crucial role in asthma management.
A new study estimates that urban cycling could prevent up to 200,000 premature deaths annually if countries support high levels of cycling by 2050. In the US alone, over 15,000 deaths could be prevented each year through urban cycling.
A team of scientists used satellite images to track ammonia concentrations in the air above Los Angeles before and during the pandemic lockdown. They discovered that cars may produce up to 95% of this harmful pollutant throughout the city, significantly higher than previous estimates.
A recent study by NTU Singapore has found a strong link between increasing air pollution and the rise of lung adenocarcinoma, a type of cancer. The study also discovered that declining smoking rates are associated with lower incidence of lung squamous cell carcinoma.
Researchers at University of Technology Sydney identified microRNA-21 as a potential therapeutic target for chronic obstructive pulmonary disease (COPD). Inhibition of microRNA-21 using antagomir-21 reduced inflammation and improved lung capacity in experimental models.
Researchers found that vehicles accounted for 60-84% of total NH3 emissions in western Los Angeles, significantly higher than government estimates. This discovery suggests a substantial health impact from vehicle-related ammonia, which has been largely under-recognized and uncontrolled.
A new study demonstrates the importance of supply-side enhancements to increase clean fuel consumption in sub-Saharan Africa. Supply-side interventions such as shortening distances to retail points and improving access to multi-burner stoves are found to be crucial for accelerating growth of the clean cooking market.
A study found that long-term exposure to air pollution increases the risk of developing COVID-19 symptoms, especially among older men and those living in poverty. However, no association was found between infection and exposure to air pollutants.
Researchers from NTU Singapore found significant increases in pollutant emissions at major international seaports during the COVID-19 pandemic. Emissions rose by over 100% in some ports, with container ships and dry bulk carriers experiencing the largest spikes.
Two leading US physicians urge doctors to screen patients for exposure to indoor and outdoor air pollution, recommending interventions to limit exposure and improve cardiovascular health. Governments also have a primary responsibility to adopt technologies and regulations that reduce air pollution.
Pollution has been linked to nine million deaths worldwide in 2019, with five million due to cardiovascular disease. The researchers emphasize the need for individual physicians to consider pollution as a risk factor when treating patients, and advocate for government-supported interventions to reduce exposure.
A new study reveals that genetic predisposition for depression combined with exposure to high-particulate-matter air pollution greatly elevates the risk of depression. The study found that the combination of genes and air pollution has a multiplier effect on the risk of depression, suggesting potentially widespread brain effects.
A new study found that air pollution is a major health risk for people living in low-income neighborhoods with high concentrations of PM2.5, leading to increased rates of chronic diseases and mortality. The study highlights the need for targeted policy solutions to address environmental health disparities.
High air pollution exposure worsens COPD patients' quality of life, while living far from green spaces also reports negative effects. Access to blue and green spaces improves mental and physical health through increased physical activity.
Research found strong correlation between Arctic black carbon abundance and mid-latitude biomass burning, indicating models underestimate BC contribution from biomass burning by a factor of three. This has significant implications for Arctic warming and climate change.
Researchers used computer simulations to predict the presence of hydroxyl radicals, which clean pollutants from the atmosphere. The study showed that traditional models had widely varying forecasts due to uncertainties in gas emissions, and that better models can aid in combating climate change.
Researchers at University of Maryland School of Medicine discovered that air pollution causes inflammation in the brain, leading to reduced sperm counts in mice. The findings suggest it may be possible to develop treatments for various medical conditions caused by air pollution.
A German study reveals that glyphosate and dozens of other pesticides are spreading through the air for miles into national parks and cities. The analysis was published in a peer-reviewed journal and shows that agricultural toxins like glyphosate are classified as probably carcinogenic to humans by the World Health Organisation.
A Stanford University study found higher levels of air pollutants within 2.5 miles of oil and gas wells, likely worsening negative health outcomes for nearby residents. The research reveals that wells emit toxic particulate matter, carbon monoxide, and ozone, posing a risk to residents' health.
A new study finds that air pollution is responsible for 1.1 million deaths across Africa in 2019, with household air pollution accounting for 700,000 fatalities. The study also reveals that air pollution is costing African countries billions in gross domestic product and hindering the intellectual development of children.
A large national study from Harvard T.H. Chan School of Public Health found that long-term exposure to permissible concentrations of air pollution increases mortality risk, particularly among elderly people and those living in lower-income areas. The study suggests current air pollution limits are inadequate to protect vulnerable groups.
Researchers developed a novel machine learning algorithm to identify previously unknown air pollutant mixtures linked to poor asthma outcomes in children. The study found that early exposure to individual and mixed pollutants can lead to longer-term problems with asthma, affecting about seven percent of US children.
The COVID-19 pandemic has exacerbated plastic pollution, with global waste generation increasing by twice the amount in 2020 compared to 2019. To address this issue, researchers advocate for a transition to novel sustainable practices and technologies, including biodegradable plastics and efficient recycling processes.
A Brazilian study examines the causal relationship between outdoor air pollution and students' cognitive performance in Brazil. The findings suggest that an increase of 10 micrograms per cubic meter of PM10 decreases students' scores by 6.1 points, with poorer students more susceptible to air pollution's effects.
A new study published in the Journal of the American Heart Association found that long-term exposure to air pollution and road traffic noise may be associated with an increased risk of developing heart failure. The correlation appears to be greater in people who are former smokers or have high blood pressure.
A new study estimates that over 3 billion people worldwide will still mainly use polluting fuels like wood and charcoal by 2030. This disproportionately affects Sub-Saharan Africa, where the number of people using these fuels is growing rapidly.
A new study reveals that while Western US wildfires contribute more health problems, they affect a greater number of people in the Eastern US due to higher smoke concentrations. The researchers estimated 6,300 extra deaths annually from long-term smoke exposure, with most occurring in populous states.
Researchers developed a dynamic respirator that modulates pore size in response to changing conditions like exercise and air pollution. The device features an AI-powered system that adjusts filtration characteristics wirelessly, providing improved breathability and comfort.
A study finds that N95 respirators can significantly reduce hospital visits due to wildfire smoke exposure. The researchers estimated a 22-39% reduction in hospitalizations if N95s were widely used.
A new study found that benzo(a)pyrene plays a small part in the global risk of developing PAH-associated cancer, with 89% of the risk coming from other unregulated chemicals. Degradation products formed in the atmosphere can also be more toxic than the emitted PAHs.
Researchers found a decline in pollutant concentrations worldwide during the 2020 lockdown, particularly in Central Europe. The study attributed these reductions to the lockdown's impact on sectors like road and air transport, but noted that weather conditions also played a significant role.
An international study found Canadians have the highest relative risk of respiratory mortality resulting from wildfire pollution. Exposure to fine particulate matter from wildfires increased risks of all causes, cardiovascular, and respiratory mortality, with about 0.4 percent of total mortality attributable to wildfire smoke.
A new study from NYU Langone Health found that losing weight and managing excess body fat can significantly reduce the risk of lung disease in firefighters exposed to toxic substances on 9/11. The study analyzed 20 years of data from over 5,700 first responders and identified five key factors that predict lung disease.
A new study has detected high levels of PFAS chemicals in indoor air, particularly in carpets and other products treated with the forever chemicals. The research suggests that children may be exposed to these harmful substances through inhalation, highlighting the need for reduced use of PFAS in products.
A new air-sampling system developed by researchers can detect an unprecedented range of potentially harmful airborne compounds. The system uses a special badge or pen attached to clothes or placed in a pocket to capture a broad spectrum of volatile organic compounds, allowing for more comprehensive exposure assessments.
A new study from the University of Surrey found that keeping car windows open while wearing a mask is best for reducing Covid-19 risk in cars. However, this approach also increases occupants' exposure to toxic air pollution particles. The optimal balance is running air conditioning on ambient mode with windows closed.
A team of scientists used low-cost sensor networks to map pollution exposure in real-time during the 2018 Kīlauea Volcano eruption. The study provided highly granular estimates of human exposure to fine particulate matter and sulfur dioxide gas, enabling communities to make informed decisions about their health.
Scientists have developed novel gas sensors with improved detection sensitivity and durability by combining organic and inorganic materials. The hybrid sensors boast high durability and high sensitivity, making them suitable for portable gas sensing applications.
A Stanford University study suggests that wildfire smoke exposure during pregnancy increases the risk of preterm birth, with as many as 7,000 extra births attributed to this factor between 2007 and 2012. The research highlights the need for investment in prescribed burns, mechanical thinning, or other efforts to reduce extreme wildfires.
Researchers found that robots and vehicle automation account for a small percentage of greenhouse gas emissions, with delivery vehicle size and fuel source having larger impacts. A human-driven, battery-powered cargo van has the lowest per-package footprint among analyzed methods.
A large study of 384,130 adults found that regular exercise lowers the risk of death from natural causes, regardless of air pollution exposure. Habitual exercise and low pollution levels were associated with lower mortality rates, while inactivity and high pollution were linked to higher risks.
A Hebrew University study reveals that as worldwide lead production increases, so do rates of lead absorption in people, leading to toxic effects. The research uses ancient human bones to show the close relationship between lead production and human exposure.
A new instrument measures atmospheric ammonia with high sensitivity and fast response, allowing for accurate quantification of NH3 emissions from agricultural ecosystems. The open-path design overcomes challenges faced by close-path instruments, enabling long-term and automated measurements.
A study analyzing 7,000 tree falls in São Paulo City found that most occurrences occur in the rainy season due to weather conditions. However, a significant number of trees fell during the dry season, attributed to poor management and inadequate conditions for street vegetation.
Computational modeling reveals that smaller drug particles can reach the distal region of airways, improving treatment efficacy. The study aims to enhance inhaler design and reduce drug loss, benefiting patients with respiratory illnesses.
Researchers from the University of Washington identified a strong link between fine particulate air pollution and an increased risk of dementia. A 1 microgram per cubic meter difference in PM2.5 pollution was associated with a 16% greater incidence of dementia, highlighting the potential neurodegenerative effects of air pollution.
A recent study by IIASA researchers found that higher income groups in India contribute more to ambient air pollution, resulting in higher mortality rates among lower income groups. The study suggests that policies targeting specific emission sources could help distribute the load more fairly.
A new study by Yale School of the Environment Associate Professor Narasimha Rao found that poorer households in India are disproportionately affected by air pollution caused by other sources. The study highlights that wealthier households contribute less to pollution but reap fewer benefits from cleaner alternatives.
A new study led by George Mason University faculty Jenna Krall investigated how commuting patterns impact air pollution exposure, particularly fine particulate matter (PM2.5). The research found that commuters traveling during rush hour have higher overall exposure to traffic-related air pollution compared to sporadic commuters.
Children exposed to air pollution may experience poor inhibitory control and academic skills in early adolescence, including spelling, reading comprehension, and math. Interventions targeting inhibitory control might improve outcomes.
A study of over 2,000 children in Barcelona found that living in urban areas with high levels of air pollution, noise, and traffic was associated with higher body mass index and a higher likelihood of being overweight or obese. The researchers proposed several mechanisms, including air pollution's potential to disrupt molecular mechani...
A large study found that long-term exposure to high levels of air pollutants like PM2.5 increases the risk of severe COVID-19 outcomes. Communities of color in Detroit are disproportionately affected due to systemic inequalities and higher exposure to industrial pollution.
A recent study by the University of the Basque Country found a direct relationship between exposure to fine particles and the level of thyroxine in newborns. The research analyzed data from the INMA project and revealed that exposure during early pregnancy has a significant impact on thyroid hormone balance.
A new study by Boston College researchers has discovered that personal networks are essential for the adoption of clean cooking fuels in rural India. Households more likely to have cleaner stoves if they have friends or peers who also use them, highlighting the importance of social influence in shaping behavior change.
Research suggests passive smoking in childhood increases risk of developing rheumatoid arthritis (RA) in women who have never smoked. Adult exposure also linked to RA risk, particularly among non-smoking women. Environmental air pollution may affect treatment outcomes.