10 Based on total world urea trade, increased demand due to a multipollutant regulation would be well under 2 percent of world trade if all SCRs used urea rather than ammonia.
Some SCRs use urea, while others use ammonia.
mnli hypothesis: Some SCRs use urea, while others use ammonia. premise: 10 Based on total world urea trade, increased demand due to a multipollutant regulation would be well under 2 percent of world trade if all SCRs used urea rather than ammonia.