Tag

Pm25

All articles tagged with #pm25

health-and-medicine7 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

science8 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

health1 month ago•5 min saved

Late-pregnancy wildfire smoke linked to autism risk in Southern California births

An analysis of more than 200,000 Southern California births (2006-2014) finds that wildfire smoke exposure in the third trimester is linked to higher autism risk in children, especially during longer stretches of smoky days. Increases are about 10% for 1–5 smoky days, 12% for 6–10 days, and 23% for more than 10 days, with stronger signals for families that did not move. The study uses outdoor PM2.5 estimates and notes limitations, including indoor exposure and behavior not accounted for; results support a link between prenatal air pollution and neurodevelopment, but replication is needed.

via NBC News|

#autism #california #health

climate1 month ago•37 min saved

EPA drops monetization of health benefits in air-pollution rules, tilting policy toward polluters

Vox reports the EPA will stop assigning a dollar value to health benefits (like avoided deaths and hospital visits) in cost-benefit analyses for PM2.5 and ozone rules, evaluating costs without monetized health gains, a shift that experts warn could weaken protections and tilt decisions toward polluters.

via vox.com|

#air-quality #climate #cost-benefit-analysis

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

science2 months ago•24 min saved

Air Pollution Significantly Undermines Exercise Benefits in Mumbai

High air pollution can significantly reduce the health benefits of outdoor exercise, with pollution levels above 35μg/m^3 PM2.5 making exercise benefits non-significant and potentially harmful above 50μg/m^3. Despite this, exercise remains beneficial in most environments, but awareness and air quality improvements are crucial for maximizing health benefits and reducing risks.

via Hacker News|

#air-pollution #exercise-benefits #outdoor-activity

health4 months ago•4 min saved

Indoor Wood Burners Pose Similar Lung Risks as Smoking, Experts Warn

A study links indoor wood burning to increased lung damage, showing that it causes faster decline in lung function similar to cigarette smoke, raising health concerns despite its popularity in affluent areas.

via The Independent|

#air-pollution #health #lung-health

environment5 months ago•84 min saved

Global Health Impact of 2023 Canadian Wildfires and Smoke

The 2023 Canadian wildfires burned a record amount of forest, significantly increasing PM2.5 pollution globally, affecting air quality and causing an estimated 5,400 acute and 82,100 chronic deaths worldwide, with impacts reaching North America, Europe, and beyond, highlighting the extensive health and environmental consequences of large-scale wildfires.

via Nature|

#canadian-wildfires #environment #health-impacts

health5 months ago•7 min saved

Air Pollution Linked to Increased Risk of Dementia and Brain Damage

A study links fine particulate air pollution (PM2.5) to Lewy body dementia by showing that exposure triggers toxic alpha-synuclein protein clumps in the brain, increasing disease risk and suggesting pollution as a potential target for prevention and treatment.

via Neuroscience News|

#air-pollution #alpha-synuclein #health

health5 months ago•3 min saved

Air Pollution Linked to Increased Risk of Dementia and Brain Health Issues

A large study links long-term exposure to PM2.5 air pollution with an increased risk of developing Lewy body dementia, especially in genetically predisposed individuals, with experiments in mice supporting the connection between pollution, protein buildup in the brain, and dementia development.

via Nature|

#air-pollution #dementia #health

health5 months ago•3 min saved

Air Pollution Linked to Increased Dementia Risk

Research suggests that fine-particulate air pollution (PM2.5) can trigger the formation of toxic protein clumps in the brain, leading to Lewy body dementia, and highlights the importance of improving air quality as a modifiable factor to prevent neurodegenerative diseases.

via The Guardian|

#air-pollution #dementia #health

health6 months ago•2 min saved

Air Pollution May Elevate Dementia and Brain Bleed Risks

A study in Utah suggests a potential link between increased air pollution, specifically PM2.5 levels, and a higher risk of brain hemorrhages, with exposure possibly weakening blood vessel walls over time, though causality has not been confirmed.

via ScienceAlert|

#air-pollution #brain-bleeds #health

health7 months ago•3 min saved

Air Pollution Linked to Increased Dementia and Brain Health Risks

A comprehensive study by Cambridge researchers links exposure to air pollutants like PM2.5, nitrogen dioxide, and soot to an increased risk of dementia, emphasizing the need for government action to reduce air pollution and its health impacts.

via The Guardian|

#air-pollution #cambridge-study #dementia

health8 months ago•6 min saved

Protecting Your Respiratory Health from Wildfire Smoke

Wildfire smoke, containing toxic gases, particulate matter, and potentially microbial pathogens, poses serious health risks beyond respiratory issues, including cardiovascular, neurological, and mental health effects, with research emphasizing the need for protective measures and further study.

via Gizmodo|

#air-quality #health #health-impacts

weather8 months ago•2 min saved

Canadian Wildfire Smoke Triggers Extended Red Air Quality Warning in U.S.

Smoke from Canadian wildfires has led to an upgraded Air Quality Alert in Michigan, now classified as 'Unhealthy' for all individuals across the Upper Peninsula and parts of northwest Lower Michigan, prompting health precautions due to small particulate matter that can affect breathing.

via MLive.com|

#air-quality #health-advisory #michigan