The variables favor having less of an effect on the concentration rather than more. 100ppm was used for simplicity, as stated, and the numbers used make no difference whatsoever. It's just easier to use 100 as an example when discussing percentages. No need to chill, I'm perfectly calm and said nothing to indicate otherwise.You see variables in here are not constant so we can't say that in every 100g there's a 100ppm of nitrates my friend.