The Terrain Decontamination Vehicles, which were acquired by the National Environment Agency in the past two years, can help reduce deadly radiation levels in wide and open areas. They are also equipped to clean up chemical spills by spraying foam over open spaces and the outside of buildings.

The vehicles join an arsenal of equipment owned by agencies like the Singapore Civil Defence Force (SCDF) to detect, monitor and minimise the havoc caused by any release of radiological materials in Singapore.

The country's response to such an incident was one of the topics delegates learnt about during a three-day homeland security conference and exhibition which ended yesterday.

There were international speakers as well as 157 exhibitors from more than 20 countries showcasing the latest bomb detectors, body scanners and surveillance systems.

Read the full story in Friday's edition of The Straits Times.