Air quality in the United States. Map of the United States showing changes in average atmospheric nitrogen dioxide (NO2) concentrations between 2005 and 2014, followed by a trend map of decreases in NO2 concentration. Nitrogen dioxide gas is a common emission from vehicles, power plants and industry, and is used as an indicator of general air quality. The decreases are a result of emission control regulations. Data obtained by the Ozone Monitoring Instrument aboard NASA's Aura satellite. | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library / NASA |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Länge: | 15 Sekunden |
Seitenverhältnis: | 16:9 |
Restrictions: | - |