Sensor Systems to Monitor Vehicle Emissions and Industrial Odours

30 Assoc Prof Daniel Goh Pei Siong asked the Minister for the Environment and Water Resources (a) what is the rationale for NEA's calls for proposals to develop sensor systems to monitor emissions from diesel vehicles and to monitor odours generated through industrial activity; and (b) whether these sensors will provide the basis to act against polluters.

Mr Masagos Zulkifli B M M: Vehicular and industrial emissions are significant sources of air pollution in Singapore. To enhance the National Environment Agency's (NEA's) capabilities in addressing air pollution, NEA is seeking technological solutions for remote real-time monitoring of emissions from diesel vehicles and industries.

Regarding vehicular emissions, studies have shown that the pollutive emissions from diesel vehicles on the roads, mainly nitrogen oxides and particulate matter, can be higher than those measured in laboratory emission tests. The real-time vehicle emission monitoring system will enable NEA to more efficiently and effectively assess the extent and impact of emissions from diesel vehicles. The system will also support the review and enhancement of air pollution control measures.

As for industrial emissions, NEA is seeking sensing devices and solutions to detect and monitor odours, characterise chemicals in the air and identify the sources of industrial odours. These will enhance NEA's current suite of sensors.