Summer ozone: record low concentrations in 2009

eea.europa.eu — The record lows in 2009 came despite average summer temperatures close to those measured in the extremely hot summer of 2003, which witnessed the highest number of exceedances in the last decade. It seems likely that EU reductions in anthropogenic ozone precursor gas emissions contributed significantly to the general decrease in peak concentrations Mar 5, 2010 View in Crawl 4