Home / Environment / Cleaner Air Boosts Toddler Smarts in NYC
Cleaner Air Boosts Toddler Smarts in NYC
4 Sep
Summary
- New York City air quality improved significantly, aiding cognitive development.
- Toddlers born after climate rules showed higher test scores than before.
- Study links cleaner air policies to significant improvements in early childhood brains.
Research indicates that New York City's climate policies have led to cleaner air, positively impacting children's cognitive development. A Columbia University study followed over a thousand children from 1998 to 2020, observing their cognitive growth from ages 1 to 3. During this period, pollution levels, including PM2.5 and nitrogen dioxide, decreased substantially due to regulations on vehicles and buildings.
This improvement in air quality correlated with higher scores on mental development tests for toddlers. Children born more recently averaged 26 percent higher on a benchmarking test at age 3 compared to those born before the climate rules took effect. The study, led by Frederica Perera, adjusted for factors like parental age and education, reinforcing the link between air quality and early brain development.
Similar findings have emerged globally, with a recent London study linking anti-traffic policies to improved child lung health. Studies in Paris, Sweden, and Stockholm have also associated low-emission zones and congestion pricing with reduced childhood asthma rates. Research in China and the United States, involving the closure of polluting facilities, further supports the health benefits of emissions-reduction policies.
