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TfL to trap pollution on road surfaces

Transport for London (TfL) has today announced plans to use its Clean Air Fund to increase the use of dust suppressant on roads and construction sites, and install vertical planters to trap pollution in the capital.

TfL will expand the application of a dust suppressant − a biodegradable saline solution of Calcium Magnesium Acetate − which sticks particulate matter to the carriageway and prevent it from re-circulating in the air.

The two existing trial sites for this at Victoria Embankment and Marylebone Road will be expanded into Park Lane and corridors such as the A2, as well as construction sites in “priority locations”.

A row of 50 green towers − 1.8m tall planters containing bedding plants, and ivy in the winter, to help trap particulate matter − have been installed along Lower Thames Street, one of central London’s most polluted roads. Other green infrastructure, including green walls and trees, will be planted at other pollution hot-spots across London.

TfL will also launch a campaign against engine idling from stationary vehicles. The campaign will use “eco-marshals” to monitor taxi ranks where air quality is particularly poor.

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