News Posted October 14, 2011 Share Posted October 14, 2011 Between the mid-1960s and 1990, phosphorus levels dropped sharply after efforts were made to change farming practices and take phosphorus out of detergents. But in 1995, levels began going up again, leading to huge blooms in recent years.More... Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now