Nasa satellite images show a dramatic decline in pollution levels over China, which the US space agency believes is “partly related” to an economic slowdown due to the coronavirus.
Nasa scientists said the reduction in nitrogen dioxide levels, the noxious gas emitted from motor vehicles, power plants and industrial facilities, was first evident near Wuhan city, the source of the outbreak, but then spread across the country.
The space agency noted that the decline in air pollution levels coincided with the restriction imposed on transportation and business activities, and as millions of people went into quarantine.
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