Ozone Transport in PA
Long distance transport and buildup of ozone and chemical pollutant precursors from urban/industrial areas of the western and southern US - Houston, Dallas, Ohio, Kansas City, Chicago, Ohio, Atlanta as well as western PA sources all contribute to elevated ozone levels in PA during defined ozone season of April thru October.
High temperatures, stagnant high pressure systems such as Bermuda Highs greatly contribute and magnify ozone formation.