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London Gardens: Green Havens Fight Air Pollution
30 Oct
Summary
- Green gardens in London significantly reduce particle pollution.
- Vegetation in gardens lowers temperatures and improves air quality.
- Incentives needed to encourage green front gardens in urban areas.
A recent year-long study conducted in London neighborhoods highlights the significant role of front gardens in combating urban air pollution and heat. Research indicated that gardens featuring hedges and abundant vegetation demonstrated substantially lower levels of particle pollution, with some achieving up to an 80% reduction compared to paved gardens.
Beyond air quality, these green spaces provide a notable cooling effect, with vegetated gardens being up to 6C cooler than paved ones during summer. This offers a vital benefit given recent hot weather trends in the UK. Scientists are now advocating for incentives to encourage the preservation and creation of green front gardens.
The study observed that hedges and shrubs effectively alter air pollution flow, trapping particles and absorbing gaseous pollutants. While these gardens offer protection from local pollution, their effectiveness can be reduced during spring due to wider agricultural dispersal. The findings suggest that maintaining greenery in front gardens is a simple yet powerful strategy for improving both local air quality and urban climate resilience.
