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(a) Comparison of rTOT,ld calculated using NOy versus CO mole fractions, (b) comparison of rTOT,ld calculated using NOy mole fraction to modeled regression slopes, and (c) comparison of rTOT calculated using CO mole fraction to modeled regression slopes. Blue dashed lines indicate 1:1 line. Gray dashed line in Figure 6a shows regression line of best fit.
