Today, in our environmental science lecture, we'll discuss the impact of urban green spaces on air quality. A recent study in London found that planting trees along busy roads can reduce particulate matter by up to 30%, but only if the trees are spaced correctly. However, the effect is limited when buildings are too tall, as they trap pollutants. Interestingly, green roofs are less effective for street-level pollution but help with building insulation. Therefore, city planners should prioritize street trees in open areas, not just parks.
❓ Según la conferencia, ¿cuál es el principal beneficio de plantar árboles a lo largo de carreteras transitadas?
A. A. Mejoran el aislamiento de los edificios.
B. B. Reducen las partículas en suspensión hasta en un 30%.
C. C. Son más efectivos que los techos verdes en todos los casos.
D. D. Ayudan a atrapar contaminantes cerca del suelo.