Water Quality and Water

A lot of this water pollution comes from big city. The bigger the city the more oil and grease that can be used in transportation in today car. This may not seem like much but when cars leak they leak on the ground and not on in bucket. So when it rains the grease and oil comes up and it now washed down the storm drains in the the ocean contamination the water. Also when we have oil spills out in the gulf that contamination of the water.