Why? Nitrogen and Phosphorus. These chemicals are added to our waters through our wastewater stream and from runnoff from agriculture.
We put together a simple plan that you can do at home to test if your local algae is limited by phosphorus or nitrogen, or is already eutrophic (has a lot of nutrients and can result in an algae bloom). Basically, you grow the algae!
We are trying out having you download the lesson directly from Google Documents. If you have suggestions, simply email us and we can make edits or add your pictures or comments. Here is the link: