Chinese researchers develop mobile device to trace key source of air pollution

VOCs are important precursors of ozone (O3) and PM2.5 matter – the most harmful small particles and a key indicator of air pollution. — SCMP

Chinese researchers have developed a mobile device that can trace volatile organic compounds (VOCs), a key source of air pollution, as the country with the world's largest carbon emissions continues its battle to bring back blue skies.

The equipment, comprising a vibration-resistant sensor, a positioning signal receiver and geographic information system, can be attached to vehicles to trace the distribution of VOCs in cities.