Thursday, October 29, 2026 Evidence-led medical research news
The First Cohort
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air-pollution

11 stories tagged "air-pollution"

Brain & Aging

Feeling Fine in Pregnancy Was No Shield Against Dirty Air's Link to Postpartum Depression

Among 475 Mexico City mothers, each 5 microgram per cubic meter rise in fine-particle pollution during pregnancy tracked with 2.67 times the risk of depression symptoms that first appeared after birth. The link was stronger in women who reported little stress.

Investigations

In Cancer Alley, the Most Polluted Air Came With More Than Four Times the Odds of a Newborn Heart Defect

Among Louisiana mothers without private insurance, the heaviest modeled industrial air toxics tracked with 4.29 times the odds of a baby born with a heart defect. The scientist who led the work says Tulane gagged her pollution research.

Autoimmune & Inflammation

The Air Never Arrives One Pollutant at a Time, but the Rules Pretend It Does

In a big European analysis, almost every pollutant tested on its own came back borderline. Measure the whole mixture the way it actually reaches the lung, and the adult-asthma signal shows up.

Metabolic & Weight

Where Taiwan's Air Got Dirtier, Early Kidney Disease Turned Severe 2.25 Times as Often

Taiwan tracked 424,000 people with early kidney disease and the air they breathed. Where PM2.5 climbed, more of them slid toward dialysis and death. Where it fell, fewer did.

Investigations

An 'A' for the Air Outside, Nearly Three Times Dirtier Inside

The EPA rated one Virginia region's outdoor air a clean 'A.' Inside the public-housing apartments of elderly and disabled residents, fine-particle pollution ran nearly three times higher, the air most long-term pollution studies miss.

Investigations

97,000 Sibling Sets Later: Standard Air-Pollution Birth Studies Overshot One Risk and Buried Another

Comparing brothers and sisters born to the same mother stripped out many of the family-level confounders, and the scary preterm-birth links shrank while the growth-restriction link the conventional models kept underselling got stronger.

Brain & Aging

Dirty Air Is Linked to 16 Percent More Inflammation in Your Blood. Does That Damage Reach Your Brain?

Each step up in long-term fine-particle exposure is tied to nearly 16 percent higher inflammation in older adults' blood, and a CHARLS analysis asks whether that same signal is what wears down the aging brain.

Brain & Aging

Europe's Wildfire Smoke Has a Second Blast Radius: Stopped Hearts and Mood-Disorder ER Visits Far From the Flames

When California's wildfire PM2.5 climbed, depression ED visits rose 15 percent and mood-disorder visits 29 percent up to a week later, and per microgram that smoke was tied to larger health effects than ordinary city smog.

Autoimmune & Inflammation

The Lungs May Be Where Rheumatoid Arthritis Actually Starts

Across Italy, South Korea, and California, higher fine-particle pollution tracks more RA flares and more new cases, and the biology keeps pointing at the airway, not the knee.

Investigations

Pregnant Women's Blood Pressure Registers Every Smoke Day. A Federal Rule Lets States Erase Those Days From the Record.

On heavy smoke days, adults' systolic pressure ran nearly 4 mmHg higher; across eight southwestern states, gestational smoke exposure raised the odds of gestational hypertension 12 percent. Since 2016, regulators have won EPA approval to erase wildfire smoke from the Clean Air Act record in more tha

Autoimmune & Inflammation

The Gene That Decides Whether Smoggy Air Wrecks Your Lungs

A University of Pittsburgh study of nearly 1,000 asthma patients pinpoints seven oxidative-stress genes that decide how badly dirty air damages the lungs.