Improved air quality linked to better mental development in toddlers, study finds
Long-term research in New York shows efforts to reduce air pollution associated with higher cognitive test scores
TL;DR
- A Columbia University study in New York linked improvements in air pollution to enhanced cognitive development in toddlers.
- Over two decades, air pollution in New York significantly decreased, with fine particle pollution and nitrogen dioxide levels halving.
- Toddlers' cognitive development scores improved, especially at ages two and three, correlating with periods of sharper air pollution reduction.
- The study accounted for other factors influencing child development, such as reduced household smoking and increased maternal education.
- Similar positive health impacts from clean-air initiatives were observed in the UK, with improvements in children's lung health and reduced emergency hospital admissions for adults.
- Despite improvements, contemporary air pollution levels are not considered safe for all children's neurodevelopment.
- Action on air pollution requires political leadership and can yield significant economic benefits.