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HealthQuiet 6d · day 6

Columbia study links cleaner air to sharper toddlers in New York

Two-decade research finds children's cognitive scores improved as pollution fell, with implications for public health policy.

newest coverage 6d agosummary written 3d ago4 pieces27 likes & upvotes NewswiresBlueskyGoogle News

What to know

  • A 20-year Columbia University study of 1,100+ children in New York found toddler cognitive test scores improved as air pollution fell, with gains clearest at ages two and three.
  • New York's clean-air policies reduced taxi pollutants by 80%, halved fine particle pollution and nitrogen dioxide between 1998–2016, and lowered smoking exposure in homes from 34% to 18%.
  • Researchers controlled for confounding factors and found the pollution-cognition link held; UK data from London and Bradford clean-air zones show similar health gains in children and adults.
  • Perera cautions that current pollution levels remain unsafe for child neurodevelopment and calls for more research and political will to drive air quality improvements.

“We tested cognitive processing including memory and sensory perception, problem-solving such as matching shapes, stacking blocks and communication, both speech and language comprehension.”

Prof Frederica Perera, Lead researcher · Guardian ↗

Prof Frederica Perera Director, Columbia Center for Children's Environmental HealthColumbia Center for Children's Environmental Health Research institution

Columbia study links cleaner air to sharper toddlers in New York
theguardian.com

How it unfolded 1 development · click the chart to see its coverage articlesposts

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  1. background

    Perera cautions current pollution levels remain unsafe for children — Despite improvements in New York, Perera emphasizes that current air pollution cannot be concluded to be safe for children's neurodevelopment and calls for additional studies and stronger public awareness of clean air policy benefits.

  2. 1

    Study shows toddler cognitive scores improved as air pollution fell

    Columbia University publishes findings from 1,100+ children assessed at ages one, two, and three showing that toddlers' cognitive test scores—measuring memory, sensory perception, problem-solving, and language—improved as air pollution decreased, with the clearest gains at ages two and three during periods of sharper pollution drops.

    “The good news is that the toddlers' scores improved as the air pollution improved.”
    — Prof Frederica Perera
    1. 2 outlets Improved air quality linked to better mental development in toddlers, study finds

      first by Guardian Science, 6d ago · also Guardian Environment

    • drgaryfuller.bsky.social

      Improvements in air pollution are leading to brighter, smarter toddlers. A New York study adds to the growing evidence that air pollution is a fixable problem and that health improves when air pollution is reduced. My latest for @theguardian.com

      drgaryfuller.bsky.socialBluesky6d ago27▲view on Bluesky ↗
  3. background

    Columbia Center begins tracking pollution exposure and child development — Prof Frederica Perera and her team at Columbia Center for Children's Environmental Health begin a long-term study measuring air pollution exposure of pregnant women and the development of their children in northern Manhattan and the South Bronx.