MULTI-sectoral coordination is needed to improve the air and water quality of Metro Cebu.
Water samples from Guadalupe, Mahiga, Butuanon downstream and upstream rivers are highly polluted, according to a study on the Physicochemical Evaluation and Toxicity Risk Assessment of Urban Rivers of Metro Cebu.
In one of the tests, juvenile Tilapia fish were placed in water samples taken from each river.
In all the tests, the fish died.
In air pollution, USC’s Josephine Castañares said that 70 percent comes from mobile sources including taxis and other public utility vehicles. Only 20 percent come from fixed sources like industries.
Major pollutants monitored were carbon monoxide, nitrogen oxides and sulfur oxides.
Where before 80 percent of the volume of wastes in rivers came from domestic sources like households, today it’s down to 50 percent. The other 50 percent comes from industrial sources.