The Greater London Authority (GLA) is to fund a network of air quality sensors around the city.
It has announced the provision of £750,000 to install 100 sensors at priority spots over the next four years, in a programme to be managed by the Environmental Research Group at Imperial College London and sensing and data analytics firm Clarity Movement, with further support from charity Bloomberg Philanthropies.
The announcement follows that in September for a smaller network of sensors close to selected primary schools in London.
The sensors measure nitrogen dioxide and particulate matter levels, weigh 1.2kg each and can be powered by a solar panel.
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