All time zones around the world are UTC plus or minus some time (usually one or more hours). Anything that is West from the zero longitude will have a minus offset, and anything that is East will have a plus offset. EST, the Eastern Standard Time observed in the Americas, as an examp...
at 12:00 UTC are also provided for these days. This procedure is based on a methodology for the identification and quantification of the contribution of SDOs in Spain and Portugal [35]. 2.3. Statistical Analysis Different approaches were used to evaluate the effects of lockdown on airborne PM...