Figure 6From: Primary NO2 emissions and their impact on air quality in traffic environments in GermanyThe photostationary mixing ratio of NO 2 . Photostationary mixing ratio of NO2 as a function of the NOX mixing ratio, shown for different NO2/NOX emission ratios. Ozone background 40 ppbv, NO2 photolysis rate 8 × 10-3 [s-1] representing typical conditions during summertime in Germany.Back to article page