New technology curbs toxic tailpipe emissions

Environment Pollution (Prevention and Control) Authority,remote sensing devices,Delhi border

Neighbourhood News Desk/Avi Arya: Vehicles that are entering Delhi will soon go for instant testing for toxic tailpipe emissions through remote sensing technology. The Supreme Court had ordered EPCA agencies to start installing remote sensing devices at the borders of Delhi.

EPCA member Sunita Narain said, “Using remote sensors will be crucial in detecting grossly polluting vehicles and this system will be in addition to the existing set-up of fitness tests. The technology will not only help the traffic police to issue spot fines to polluting vehicles, but also help in data collection about specific models of vehicles that are more polluting than others”.

A remote sensing device first comprises a light source and a detector that is placed on the side of the road or at a height to transmit a laser beam. This beam measures the exhaust fumes remotely through spectroscopy when vehicles cross its light path.

Anumita Roychowdhury, CSE, said, “It can measure exhaust plume, and detect opacity, nitric oxide, carbon monoxide, hydrocarbons, and carbon monoxide in 0.5 seconds”.


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