We had a meeting the other day about the Hudson River. We learned that the Hudson River is an estuary. An estuary is a body of water where salt water and fresh water mixes together. Another thing about estuaries is that they’re tidal, and so the water gets high and low throughout the day. At high tide, the water can take garbage a person might have accidentally left on the beach and sweep it out into the water.
We also learned that there is a food chain in the Hudson River that leads to us, and the younger kids drew food webs, which show how everything in the wild is connected and how everything relies on everything else in order to survive.
Ari with food web showing connections between all elements. Ari said, “Without the sun, there wouldn’t be anything at all!”
The older kids made charts to show how much bacteria was in the water and when.
Guin’s frequency chart, which shows how often water samples taken by Riverkeeper were acceptable, possible risk and unacceptable levels of enterococcus.
You can see that the samples tested acceptable more often than unacceptable, which means that the River isn’t so polluted as it used to be.
My chart also shows that the amount of rain that falls the week before the sample was taken (the orange line) can have an effect on the amount of bacteria in the water. And the purple line shows that they don’t take samples when it’s raining because that stirs up the bacteria in the water which affects the sample!
So all of that means, you probably shouldn’t swim in the Hudson River after it rains.
There are many reasons to keep the Hudson River, or any other river, clean. Here are some:
*all bodies of water are connected so any garbage we throw in the river will end up in the ocean and become an even worse problem (for the animals and plants that live there, and for our food web and health)
*garbage can kill animals and fish that live in the river
*we swim in rivers
*we drink from rivers
*it’s pretty to look at rivers without garbage in it
You see , it is important to keep the river clean. When we keep the river clean, we are keeping the river, animals, and humans safe.
If you are interested in keeping the river clean, you can meet us at Kingston Point Beach on May 11th. We have signed up to be part of the annual community action day called the Riverkeeper Sweep. Different groups like ours are given a part of the beach to clean up. We hope we’ll see you there!