Pollution Index Chart

The purpose of the Pollution Index Chart is to assess the quality of any body of water. The benefits are you can find out what is wrong with the water and if the quality of water needs some attention. Although, that only represents part of the problem. You can't always test every bit of water, so there might be other problems that you can't see. I think it is the definitive test for water quality at this moment, because of its quickness and accuracy, but there could be a better way to test water in the future.  With a high population and low diversity the water quality is poor with plenty of pollution. This is most likely because of all the pollution being dumped in oceans and lakes.