I am relieved that the powder used for the Colour Run in Singapore is different from that used in Taiwan, which caused a fire that has left at least two dead and hundreds injured ("Colour Run to continue in S'pore"; Thursday).

However, I wonder if the powder used in Singapore will trigger allergies and irritate the eyes and skin. Worse yet, will it cause cardiac arrest if inhaled?

Already, there have been cases of sudden deaths due to cardiac arrest during running events in Singapore. Will the powder increase this risk?

The event organisers, police and the Singapore Civil Defence Force should ensure that such powders are safe for use, other than being non-flammable.

Ace Kindredzen Cheong