iOS app shows virus lockdown leads to remarkably cleaner skies

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IQAir app showing LA air quality in coronavirus
Los Angeles has cleaner air under COVID-19 restrictions.
Photo: David Pierini/Cult of Mac

A pandemic that kills thousands offers no silver linings.

But stay-at-home orders to slow the spread of COVID-19 shows us a window for what living with clean air is like.

An air quality tech company, whose global measurements can be monitored on an iOS app, says greenhouse gas emissions are so low right now, Los Angeles has the cleanest air of all metropolitans areas in the U.S.