Vehicles plying regular routes can collect reliable pollution data using small on-board devices, said Professor Neil Hoose, co-ordinator of the Department for Transport co-funded MESSAGE (Mobile Environmental Sensing Systems Across Grid Environments) project.

MESSAGE, he continued, had shown the scope for identifying specific pollution hotspots. Councils could use results to protect vulnerable pedestrians and waiting passengers by redesigning streetscapes and relocating bus stops. Linked to real-time passenger information, MESSAGE arrays could then give vulnerable travellers personalised pollution zone alerts.

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