What is the salt content of lake ontario?

Question

and how do you know?

Answer 1

It is a fresh water lake, so it is near zero.

Lake Michigan (another Great Lake) is referenced in the following article.

http://www.palomar.edu/oceanography/salt...

"The saltiness of the ocean is more understandable when compared with the salt content of a fresh-water lake. For example, when 1 cubic foot of sea water evaporates it yields about 2.2 pounds of salt, but 1 cubic foot of fresh water from Lake Michigan contains only one one-hundredth (0.01) of a pound of salt, or about one sixth of an ounce. Thus, sea water is 220 times saltier than the fresh lake water."