Hay, BS, the Iowa DNR has as proposal out on how to reduce Iowa's contribution to the hypoxia in the Gulf of Mexico. You might want to read it. You might learn how they measure it.
Guess what, mallcontent. YOU might want to read it. They don't state how they measure it. In fact, it is not just the DNR, but several agencies and councils.
You are still a moron with your unsubstantiated claim. And you try to use non-scientific agendized estimates for your cause.