Tag

Air Pollution

All articles tagged with #air pollution

health-and-medicine9 days ago•43 min saved

Massive US Study Links Air Pollution to Alzheimer’s Risk in Seniors

A nationwide analysis of 27.8 million Americans aged 65+ shows long-term PM2.5 exposure is associated with higher Alzheimer's risk, mainly through direct brain effects rather than via hypertension, stroke or depression; greater risk among those with prior stroke and in disadvantaged communities with higher pollution exposure underscores environmental justice concerns and a push for stricter air-quality standards. The study relies on ZIP-code level outdoor exposure estimates and notes that indoor/work exposure was not included, indicating a need for mechanistic follow-up research.

via Ground News|

#air-pollution #alzheimers-disease #epidemiology

science11 days ago•5 min saved

Air Pollution May Directly Accelerate Alzheimer's Risk, Study Finds

A large observational study from Emory University analyzing about 27.8 million US seniors over 18 years links higher 5-year average PM2.5 exposure to increased Alzheimer's disease risk, suggesting direct brain effects beyond traditional risk factors. Using ZIP-code pollution estimates, the researchers found a strong association even after adjusting for comorbidities, with stroke appearing to heighten vulnerability. While causality can’t be proven, the findings support the public health case for reducing air pollution to help lower dementia risk.

via ScienceAlert|

#air-pollution #alzheimers-disease #neurodegeneration

health11 days ago•4 min saved

Fine-particle pollution tied to higher dementia risk in US seniors

A large US study of about 28 million Americans aged 65+ (2000–2018) links higher fine-particulate air pollution to increased dementia incidence, including Alzheimer’s, suggesting pollution may directly affect brain aging beyond other health factors; exposures were roughly twice the WHO annual guideline, with researchers noting potential mechanisms like brain inflammation and toxic protein deposits.

via Financial Times|

#air-pollution #alzheimers-disease #dementia

health19 days ago•5 min saved

Sneeze science: what your nose really tells you about health

Sneeze science shows it’s a normal, protective reflex triggered by irritants and the trigeminal nerve, not a mystical omen. Causes include allergens, viruses, pollution, and even bright light; the visible blast travels under a metre at about 10 mph. Sneezing can spread infections such as cold, flu and Covid, so cover with a tissue or elbow and use a mask in high-risk settings; overall, sneezing is a routine physiological response influenced by environment and immunity, not a sign of danger.

via The Guardian|

#air-pollution #health #immunity

science19 days ago•6 min saved

Century-old Equation Reimagined to Track Irregular Airborne Particles

Warwick researchers revived the Cunningham correction factor and generalized it into a correction tensor to predict how non-spherical nanoparticles move through air, enabling simple, accurate models of pollution spread, disease transmission, and atmospheric processes without intensive simulations.

via ScienceDaily|

#aerosol-science #air-pollution #correction-tensor

science21 days ago•6 min saved

Short Bursts of Fresh Air Can Boost Indoor Health, Study Finds

Ventilating homes with short, strategic bursts of open windows can dilute indoor pollutants and lower airborne infection risk, but outdoor pollution near busy roads can lessen the benefit. The effectiveness varies by location (greener, quieter areas fare better), timing (lower pollution periods or after rain), and method (Stoßlüften vs. constant small openings). Overall, a balanced approach—short bursts away from traffic and in well-ventilated edges of the home—can improve health, mood, and cognitive function while potentially reducing long-term healthcare costs.

via ScienceAlert|

#air-pollution #cross-ventilation #indoor-air-quality

health22 days ago•35 min saved

WHO Finds One-Third of Global Cancers Could Be Prevented, Led by Smoking and HPV

A World Health Organization analysis published in Nature Medicine says more than a third of global cancer cases in 2022—nearly 19 million—were preventable through medical intervention, lifestyle changes, and reducing environmental/occupational risks. The leading preventable factor is tobacco smoking (about 15% of cancers worldwide, 23% in men), with alcohol, infections such as HPV, and air pollution also contributing. HPV vaccination can prevent many HPV-related cancers, but global coverage remains low. With lung, stomach, and cervical cancers constituting a large share of preventable cases, addressing these risks could significantly cut the global cancer burden.

via Yahoo|

#air-pollution #cancer #health

health24 days ago•3 min saved

Global Cancer Prevention Hinges on Two Major Lifestyle Habits

A WHO analysis of 2022 cancer data finds that roughly 38 percent of cancers are preventable by addressing about 30 modifiable risk factors, with tobacco smoking responsible for about 15 percent of all cases and higher shares in men; other major preventers include alcohol, air pollution, and infections such as HPV, along with obesity, physical inactivity, and environmental exposures. The study argues that targeted policy and behavioral changes could avert millions of cancers, and underscores HPV vaccination as a key but underused intervention; the work was published in Nature Medicine.

via ScienceAlert|

#air-pollution #cancer #health

science27 days ago•35 min saved

California air clears quickly as EVs cut NO2, study finds

A USC-led study published in Lancet Planetary Health used high-resolution satellite data to measure NO2 in 1,692 California neighborhoods from 2019–2023, showing that every 200 zero-emission vehicles added coincided with a 1.1% drop in NO2; ZEV registrations rose from 2% to 5% of light-duty vehicles while neighborhoods adding gas-powered cars saw NO2 rise, underscoring the immediate health and air-quality benefits of EV adoption and prompting further research on asthma and hospitalizations.

via Yahoo|

#air-pollution #california #electric-vehicles

health27 days ago•33 min saved

Invisible Pollutants, Visible Heart Risk: Low-Level Air Pollution Linked to Worse Coronary Disease

A study presented at the Radiological Society of North America’s 2025 meeting finds that long-term exposure to ambient fine particulate matter (PM2.5) and nitrogen dioxide (NO2) is linked to more severe coronary artery disease, even at low exposure levels. Researchers report women showing higher calcium scores and arterial narrowing and men showing higher calcium scores and plaque burden with greater PM2.5 exposure, underscoring the cardiovascular risks of urban air pollution and the rationale for policies to curb vehicle emissions.

via Yahoo|

#air-pollution #coronary-arteries #fine-particulate-matter

health1 month ago•5 min saved

Air Pollution May Raise ALS Risk and Accelerate Its Progression

A JAMA Neurology study (via The Conversation) ties long-term exposure to outdoor air pollution—especially traffic-related PM10 and nitrogen dioxide—to a 20–30% higher risk of developing amyotrophic lateral sclerosis and to faster disease progression in diagnosed patients, notably in motor and respiratory function. The analysis used up-to-10-year air-pollution data at participants’ home addresses and included sibling comparisons to reduce confounding. Limitations include missing data on smoking and indoor pollution. If corroborated, these findings underscore the broader health impact of polluted air and potential avenues for earlier ALS diagnosis and management.

via ScienceAlert|

#air-pollution #als #disease-progression

environment1 month ago•1 min saved

EPA to Weigh Only Industry Costs, Dropping Health Gains in Air-Pollution Rules

The EPA will stop tallying the health benefits of reducing air pollution when setting pollution limits, focusing only on industry costs, a shift that could ease rollbacks of rules on pollutants from coal plants, refineries, and other facilities.

via The New York Times|

#air-pollution #cost-benefit-analysis #environment

environment1 month ago•26 min saved

Xi’an’s air carries more microplastics than before, study finds

A Xi’an, China study found microplastics in city air within PM2.5 tripled over the study period, with post‑pandemic samples dominated by white/transparent fibers from discarded masks. Inhaled microplastics can deposit in the nose, throat, and lungs, and younger people may be more susceptible. Sources include masks, synthetic clothing, tires, and packaging; aging plastics and ozone may boost release. Outdoors indoors exchange and air monitors, along with cleaner streets and better waste management, could help reduce exposure, and some cities promote reusable masks. The study was published in the Journal of Geophysical Research.

via Earth.com|

#air-pollution #environment #masks

health1 month ago•4 min saved

Rising Lung Cancer Cases in Young Non-Smoking Women and Non-Smokers

Lung cancer rates are rising among women under 50, including non-smokers, due to factors like air pollution, lifestyle, and biological differences. Early symptoms are often overlooked, but timely diagnosis and modern treatments can significantly improve outcomes. Awareness and preventive measures are crucial to address this emerging health concern.

via Hindustan Times|

#air-pollution #early-detection #health

world2 months ago•5 min saved

India's Urban Transport Crisis: Challenges of Civic Responsibility and Environmental Balance

India's major cities are facing severe challenges like toxic air, broken roads, and uncollected rubbish due to inadequate governance, despite significant investments in infrastructure, highlighting systemic issues in urban management and planning.

via BBC|

#air-pollution #governance #india