"You determine Iowa nitrogen by where it comes from. If it comes from Iowa it's Iowa nitrogen. To make it even more clear for you, if it comes from Illinois it's Illinois nitrogen. You don't wait for it to get to the gulf you measure it when it leaves the state. It's a simple thing."
AHHHHHHHHH......now we are getting somewhere!
Just as I have posted time and time again....other states nitrogen flows into Iowa...as it does all other states in the Mississippi river drainage basin. When measuring Nitrogen LEAVING the state of Iowa, dingbat, it is already influenced by other states that flow into Iowa! The same with Illinois, dingbat! Have you checked how many rivers and streams flow into Iowa, dummy! Measure it when it leaves the state?????????
The simple answer to your question (dilemma) is you subtract what flows in from what flows out giving you the contribution from Iowa. But subtraction is math again which you don't do well. People normally learn subtraction early in school. Right after counting and addition. I don't know what grade you were supposed to learn that. First? Second?
I personally had the counting and some addition down before I even entered school.
How about the nitrogen that flows INTO the state before it LEAVES the state, brightboy???? That is not Iowa's load!!!!! How many rivers flow into Iowa and then from Iowa into Missouri (none) and then flow elsewhere, including back over to the Miss.???? But then...nothing in your data says anything about how all this is measured. So, you are just posting your hypothetical, conspiratory, means of how nitrogen is measured, and where! Where does your IPP report say they measured nitrogen leaving Iowa? It does not! It ONLY references Iowa's nitrogen being in the GULF! No way, Jose!
Unless , of course, you wish to back up the sources you have provided that have NOT provided this information before!!!!! Gottcha agin! Are you embarrassed yet? You've gottch nothing.
You've retreated into your own little world of ;
excessive exclamation marks, 15
excessive question marks, 19
excessive name calling, 5
And even excessive H's, 9
I was going to give you a detailed description of how the nitrogen contributed from Iowa, could be determined. But, you apparently would neither accept nor understand it. It involves math. Land area, stream cross sectional areas, river stages, stream velocity, parts per million (PPM), and statistics as well as addition and subtraction.
There's even chemistry but of course you knew that.
But I'm not. I'll leave you with your belief that it can't be done.