Point vs non-point pollution
Point source pollution is defined as a single spot of pollution from which waste is clearly coming from, such as a pipe or ship with a leak. When oil wells in the middle of the ocean have a pipe that breaks it leaks oil and that creates a single source of pollution to the environment around it. To help prevent point source pollution factories can make sure to have daily check ups on their pipes and use material that is more durable so that they don't leak. When oils do get leaked into the oceans sea animals get stuck in it and get sick. Small and large fish breath in the oils and die.
This is point pollution. Here you can clearly see the oil coming from the boat.
The waste is coming from the factory. This causes animals and people near by to get sick.
Non-point source pollution is defined as polluted water that has no clear source of pollution. The pollution can come from land runoff and precipitation into the water. Lakes and rivers at the end of big cities have non-point source pollution because different waste comes from sewage, runoff, and rain wasting trash onto them. Non-point pollution is a community effort to prevent. People in the streets could be more careful about where their trash goes. Streets can be cleaned more so rain water doesn't take the trash away to the rivers. If the trash does get to the oceans and rivers water that people use to drink will be ridden with gross bacteria making it undrinkable. If people do drink it they can get sick.
Non-point source pollution is waste coming from different sources to pollute one area. Here is shows the waste from houses, factories and others.
This shows how small source add up to make a big mess. pollutants from soil and fertilizers go into the water.