The power and energy ministry has decided to reduce the sulphur content level to 500ppm (parts per million) in diesel by 2013 from its present level of 2500ppm.

The decision was made at a meeting with the state minister for power and energy, Mohammad Enamul Haque, in the chair, following a request from the environment and forests ministry.

At present, the highest sulphur content is 2500ppm i