The Green river

These photos were taken on December 29, 2010 for one of the rivers in Canada, where river turned green for nearly an hour and then the river returned to its natural color. After the call to special teams for the detection of the river and what happens to them, they discovered that these colors that covered the river water was the result The arrival of a chemical "Alflorisiin" to the river and it is non-toxic and lead to the erosion of water and change color.