Nitrogen dioxide decline and rebound observed by GOME-2 and TROPOMI during COVID-19 pandemic.

S4 for large urban cities, where a negative trend is found for Los Angeles (− 3.5%/year) in the USA (33.5 ∘ N–35.5 ∘ N, 117.25 ∘ W–119.25 ∘ W), and positive trends are observed for New Delhi (1.2%/year) in India (27.6 ∘ N–29.6 ∘ N, 76.2 ∘ E–78.2 ∘ E) and Lima (2.8%/year) in Peru (11 ∘ S–13 ∘ S, 76 ∘ W–78 ∘ W).

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