The pollution level entered the 'severe' category for the first time this season on Wednesday, with the Air Quality Index (AQI) spiking to 429â a sharp rise from Tuesday's 24-hour average of 334.

Many of the photos were taken before water and air pollution were fully regulated. The Clean Air Act was passed in 1970, and the Clean Water Act was passed in 1972. Baltimore, Birmingham ...

The Commission for Air Quality Management on Monday revoked the Stage 2 curbs under the Graded Response Action Plan (GRAP) following a dip in pollution levels due to favourable meteorological ...