The Effects of Pandemic Restrictions on Public Health-Improvements in Urban Air Quality.

Since energy dropped by 25% every week when full lockdown was active, and with an average decrease of 3.8% from spring 2019 to spring 2020 on the basis of the drop in traffic-related activities and partial or full industries breaks, air pollution settled on a decreasing trend, consisting of a total decrease of 12% in the analyzed period, which is the most significant air quality improvement since the industrial revolution [ 13 ].

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