February 18th 2021
Poor air quality has been declared the largest environmental risk to UK public health* and according to a recent RHS commissioned survey of 2,056 adults, air pollution affects one in three people (33%) in the UK.
However only 6% take active steps in the garden to help alleviate it. In London, nearly 6 in 10 (59%) are affected by air pollution and almost a quarter (22%) of Londoners are ‘significantly affected’ but only 4% plant with pollution in mind.
Research lead for the paper and RHS Principal Horticultural Scientist, Dr. Tijana Blanusa said;
“On major city roads with heavy traffic we’ve found that the species with more complex denser canopies, rough and hairy-leaves such as Cotoneaster were the most effective.
We know that in just seven days a one metre length of well-managed dense hedge will mop up the same amount of pollution that a car emits over a 500 mile drive..."