# Study: London's Ulez scheme improves children's lung health

A new study found that children's lung size and function improved following the introduction of London's Ultra Low Emission Zone (Ulez), which restricts polluting vehicles. Researchers compared lung development before and after the policy, linking reduced air pollution to better respiratory outcomes. The findings offer evidence that clean air zones can deliver tangible health benefits for young people.

**Importance:** 3/5

## Sources

### World
- [The Guardian World](https://www.theguardian.com/environment/2026/aug/18/ulez-better-lung-size-function-london-children) — Tue, 18 Aug 2026 22:30:02 GMT