Toxic fumes in industrial building

Dear Mr. Tan
I work in an industrial estate complex belonging to a listed industrial REIT in Ang Mo Kio Ave 10. Since late last year, a unit next to the ground floor lift lobby have been discharging a foul smelling air. This pervades the lift lobby and on cold days, drifts up to even the third and fourth floor. The smell of this discharging is nauseating although the discharge is intermittent and the intensity varies from time to time.

I was wondering if the gas is toxic or carcinogenic. So I sent a mail to NEA and also notified the management of the building. After much tai-chi and wayang, the situation did not change significantly and I think no real measurements and test of the air was done after a full 6 months.

What can we do to these people especially the NEA? Are they not supposed to act like civil servants looking after the people's health and interest? Must we wait until someone dies or get cancer before something happens?

HW