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. 2021 Apr 2;9(4):e2020EF001665. doi: 10.1029/2020EF001665

Figure 7.

Figure 7

Temperature variations in column NO2. (Top left) TROPOMI NO2 when maximum daily 2‐m temperature is between 26°C–32°C (Warm; 80°F–90°F); only areas where >10 valid pixels are shown. (Bottom left) TROPOMI NO2 when maximum daily 2‐m temperature is greater than 32°C (hot; 90°F); only areas where >10 valid pixels are shown. (Top right) Temperature variation of TROPOMI NO2 in seven U.S. cities normalized to 10°C–21°C (50°F–70°F); city averages are across a 1° × 1° box centered on the city. (Bottom right) Ratio between days with daily 2‐m temperature >32°C (Hot) and 26°C–32°C (Warm).