No, I'm saying that 420 parts per million is still much lower than 3000-9000 parts per million. Also, even a number they chose is plain trolling. Of all number

No, I'm saying that 420 parts per million is still much lower than 3000-9000 parts per million. Also, even a number they chose is plain trolling. Of all numbers, 420 ppm is what they "calculated".