Nonpoint source pollution is much trickier. Nonpoint source pollution means you cannot point to the exact source of the pollution. Fertilizers, pet waste, salt, car oils and pesticides are all examples of this kind of pollution but there are many, many more! These pollutants are washed off roads or carried over the ground by rain or melting snow. The polluted rainwater or snow runoff ends up in streams, lakes, rivers and oceans. Cities and farms tend to cause the most common nonpoint source pollutants. It is very hard to control this form of pollution, since it covers a wide area and many different land uses. Unfortunately, we all contribute to nonpoint source pollution. Often we don’t even realize we are doing it! When we drive in cars, spray pesticides on our plants, or litter, we cause harmful chemicals and solid waste items to end up in our waterways. Luckily, this means we can also help to make a difference. Below are some ideas of simple things you can do to make a difference in keeping our water cleaner and our ecosystem healthier! What YOU Can Do! • Ride your bike to school instead of a car • Plan a community or school cleanup day • Pick up trash when you see it. Recycle it if you can! • Pick up pet waste • Plant grass, trees, and shrubs in open areas to help prevent water runoff • Ask your parents or school to use less pesticides • Clean up spilled or leaking car fluids • Tell a friend, family member, classmate or teacher about water pollution These are just a few examples of all the ways we can reduce the amount of nonpoint source pollution in our community. If you have a great idea, share it with your friends and put it into action! Did you know? The Louisville Zoo has a green roof on the HerpAquarium building. Green roofs are a great ecofriendly addition to any structure because they not only help conserve energy, but they decrease the water runoff that pollutes our water systems!