As we saw yesterday all along the Indian River Lagoon, many were out helping clean it up from visible pollution. I felt it was a great time to explain to our Kidz what water pollution is and the many types of it.
What is water pollution?
Water pollution is is when waste, chemicals, or other particles cause a body of water (i.e. rivers, oceans, lakes) to become harmful to the fish and animals that need the water to survive. Water pollution can disrupt and negatively impact nature's water cycle as well.
There are many types of pollution water can face. Here are some:
- Sewage (aka microbial pollution)
- Pesticides and fertilizers (aka nutrient pollution)
- Water waste and chemicals from factories (aka ground water pollution)
- Construction site debris (aka suspended matter pollution)
- Litter and garbage (aka surface water pollution)
- Oil spills (aka chemical pollution)
Locally, the largest types we see here are litter and garbage (as we saw here yesterday) and nutrient pollution (fertilizers and pesticides). This passed year, lots of Florida's cities and counties passed fertilizer bans during the rainy season or summer months. This was a great move on behalf of the many counties and cities since we all know how often we're mowing during that time of year. Unfortunately, the agriculture industries still use harmful chemicals AND the rainy season is typically the time of year we see discharges. All of those chemicals eventually make it into our watershed (see previous blog) and are flushed into our estuary and rivers. the effects of this type of pollution is detrimental to the health of the lagoon and has some areas near by completely lifeless.
Its also important to dispose of trash properly AND if you see trash laying nearby take two seconds to pick it up and either throwing it in the trash or recycle it. A lot of times that piece of trash ends up in the waterways. How long does some trash last in our waters?
I wanted to leave you all with some interesting facts regarding water pollution.
- Pollution in the water can reach a point where there isn't enough oxygen in the water for the fish to breathe. The fish can actually suffocate!
- Sometimes pollution affects the entire food chain. Small fishes absorb pollutants, such as chemicals, into their bodies. Then bigger fishes eat the smaller fishes and get the pollutants too. Birds or other animals may eat the bigger fishes and be harmed by the pollutants. One example of this was the use of the insecticide (bug killer) DDT. When birds of prey ate fishes that were infected with it, they would lay eggs with thin shells. The population of birds of prey began to drop until DDT was banished.
- Sewage can also cause major problems in rivers. Bacteria in the water will use oxygen to break down the sewage. If there is too much sewage, the bacteria could use up so much oxygen that there won't be enough left for the fish.
- Water pollution from major events like acid rain or oil spills can completely destroy marine habitats.
- Soap from washing your car can run down the street drain and cause water pollution.
- Only around 1% of the Earth's water is fresh water. The rest is salty and we can't drink it.
- Around 40% of the rivers and lakes in the United States are too polluted for fishing or swimming.
- The Mississippi River carries around 1.5 million tons of pollution into the Gulf of Mexico each year.














