Air Pollution News and Research

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Airborne microbial pollutants may pose hidden respiratory health risks

Public concern about air pollution has traditionally centred on chemical pollutants such as vehicle exhaust and industrial emissions found in fine particulate matter (PM2.5).

7 May 2026

Climate change increases stroke risk through extreme weather and pollution

The World Stroke Organization is warning that climate change poses an escalating threat to brain health, with extreme heat in particular increasing the risk of having a stroke and of patients dying from stroke.

30 Apr 2026

AHA calls for lifelong brain health strategy to prevent cognitive decline

The AHA scientific statement calls for a life-course approach to brain health that integrates cognitive, emotional, behavioral, vascular, environmental, inflammatory, sleep, microbiome, and social factors. It highlights how early-life exposures, mental health, pollution, chronic inflammation, poor sleep, gut dysbiosis, and socioeconomic adversity may shape brain resilience and later-life cognitive decline.

29 Apr 2026

Rising bowel and ovarian cancer rates in younger adults raise new concerns

Cases of several cancers are rising in England among both younger and older adults, but rates of bowel and ovarian cancer are rising only among younger adults (under 50s), finds research published in the open access journal BMJ Oncology.

28 Apr 2026

Prenatal air pollution exposure linked to delayed toddler development

Babies exposed to high amounts of air pollution in the womb show slower signs of development at 18 months than those exposed to lower levels.

28 Apr 2026

New scientific statement defines brain health across life

Brain health isn't determined only by genetics or what happens later in life. A growing body of research shows that a range of factors-from mental health and sleep to environment, lifestyle and social conditions-play a powerful role in shaping how the brain functions and ages.

28 Apr 2026

Soy-based nutrients may help reduce COPD symptom burden

Higher isoflavone consumption is associated with improved respiratory health in former smokers with COPD, highlighting diet's role in disease management.

28 Apr 2026

Scientists identify STING switch driving inflammation in Alzheimer’s disease

The brain has its own immune system, which detects threats and mounts a defense. A growing body of evidence has shown that in Alzheimer's disease, those immune cells are chronically overactivated, causing inflammation that damages the connections between brain cells.

24 Apr 2026

Heatwaves and coldwaves linked to increase in major cardiovascular events

Heatwaves and coldwaves are associated with increases in major cardiovascular events that are exacerbated by air pollution.

24 Apr 2026

WHO reports measurable health gains but warns of unmet goals

The World Health Organization (WHO) today released its Results Report, highlighting measurable improvements in people's health worldwide in 2025, despite funding cuts affecting both the organization and the broader global health sector.

24 Apr 2026

Air quality in infancy may fundamentally shape long-term immune development

Ambient air pollution is associated with respiratory infection burden in the first year of life, according to preliminary findings from the Immune Development in Early Life (IDEaL) Rome Cohort. Findings from the cohort will be presented during the Pediatric Academic Societies (PAS) 2026 Meeting, taking place April 24-27 in Boston.

24 Apr 2026

Study links common herbicide to rising early-onset colorectal cancer risk

Researchers used DNA methylation-based “epigenetic fingerprints” as proxies for lifelong exposome-related patterns and found that early-onset colorectal cancer was associated with lower Mediterranean diet adherence, lower education, smoking-related signatures, and higher picloram-related exposure signals. They then supported the picloram association in nine independent cohorts and with 21 years of US county-level pesticide-use data, while noting that the findings show association rather than proof of causation.

22 Apr 2026

Chronic wildfire smoke exposure may raise long-term cancer risks

Exposure to wildfire smoke was associated with a significantly increased risk of lung, colorectal, breast, bladder, and blood cancer, according to results from a study presented at the American Association for Cancer Research (AACR) Annual Meeting 2026, held April 17-22.

21 Apr 2026

Long-term exposure to air pollution (PM2.5) raises risk of developing cancer by 11 % and of dying from cancer by 12 %

The Union for International Cancer Control (UICC), with support from the Clean Air Fund, has released a global report, Clean air in cancer control: An overview of the evidence, presenting data on the scale of cancer risk and mortality from polluted air.

21 Apr 2026

Climate change could make humidity-driven heat risks more dangerous, study finds

Researchers analyzing 2.46 million ambulance dispatches across 13 Chinese cities found that humidity can intensify the health risks linked to both hot and cold temperatures, with cold-dry and warm-wet conditions posing the greatest risks. Future climate projections suggest compound temperature-humidity events will become more frequent and increasingly shift health burdens toward heat-related events in China.

19 Apr 2026

Short-term and cumulative exposure to air pollution tied to increased migraine activity

Air pollution is associated with increased migraine activity, according to a study published on April 15, 2026, in Neurology, the medical journal of the American Academy of Neurology.

17 Apr 2026

Pennsylvania town faces fallout from Trump's environmental rule rollback

North America's largest coke plant hugs the west bank of Pennsylvania's Monongahela River, belching out emissions from turning superheated coal into a carbon-rich fuel.

13 Apr 2026

Europe faces growing health threats from fossil fuel reliance

Europe's dependence on fossil fuels is not only making the continent economically and politically vulnerable, it also has dramatic consequences for the population's health.

10 Apr 2026

Living near Salton Sea linked to reduced lung growth in children

Children who live within 11 kilometers of the Salton Sea, a drying body of water with a high concentration of salts and contaminants in Imperial Valley, California, have slower lung function growth between ages 10 and 12 than children who live farther away.

3 Apr 2026

Study shows how environmental factors accelerate biological age of the brain

The latest findings from the Global Brain Health Institute (GBHI) at Trinity College Dublin identify important brain health implications for prevention, public health, and policy.

3 Apr 2026