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NO2 Pollution Over Industrial Hotspots: China, U.S., EU, India
Average tropospheric NO2 over each place's cities, industry and power plants, 10^15 molecules/cm²
3 of 4 series are above their level a year earlier
Plays the chart through its history. Pauses are where the data set a record or moved most.
Contains modified Copernicus Sentinel data, processed by KNMI (TEMIS). Monthly mean tropospheric NO2 from TROPOMI on Sentinel-5P, averaged by Palanor over Natural Earth boundaries. NO2 is far higher in winter than in summer. Hotspots: the tenth of each place's area with the highest NO2 in 2019, its cities, industry and power plants.
The same satellite, the same method, four economies. The saw-tooth is the seasons: winter NO2 lasts longer in weaker sunlight and heating adds to it. Compare winters with winters to see the trend.
What this chart reads
- NO2 Pollution Hotspots: China (Sentinel-5P, monthly)as “China”latest 2026-09-01
- NO2 Pollution Hotspots: India (Sentinel-5P, monthly)as “India”latest 2026-09-01
- NO2 Pollution Hotspots: European Union (Sentinel-5P, monthly)as “European Union”latest 2026-09-01
- NO2 Pollution Hotspots: Contiguous U.S. (Sentinel-5P, monthly)as “Contiguous U.S.”latest 2026-09-01
Sources
NO2 Pollution Hotspots: China (Sentinel-5P, monthly). Source: Contains modified Copernicus Sentinel data (2018–2026), processed by KNMI: monthly mean tropospheric NO2 from TROPOMI on Sentinel-5P, TEMIS service (temis.nl). Boundaries: Natural Earth. Palanor calculation. Refreshed.
NO2 Pollution Hotspots: India (Sentinel-5P, monthly). Source: Contains modified Copernicus Sentinel data (2018–2026), processed by KNMI: monthly mean tropospheric NO2 from TROPOMI on Sentinel-5P, TEMIS service (temis.nl). Boundaries: Natural Earth. Palanor calculation. Refreshed.
NO2 Pollution Hotspots: European Union (Sentinel-5P, monthly). Source: Contains modified Copernicus Sentinel data (2018–2026), processed by KNMI: monthly mean tropospheric NO2 from TROPOMI on Sentinel-5P, TEMIS service (temis.nl). Boundaries: Natural Earth. Palanor calculation. Refreshed.
NO2 Pollution Hotspots: Contiguous U.S. (Sentinel-5P, monthly). Source: Contains modified Copernicus Sentinel data (2018–2026), processed by KNMI: monthly mean tropospheric NO2 from TROPOMI on Sentinel-5P, TEMIS service (temis.nl). Boundaries: Natural Earth. Palanor calculation. Refreshed.
Charts are drawn from Palanor's signal library and recomputed from source data on every view. Transformations (changes, indexing, year-on-year rates) are Palanor's.