%0 Journal Article
%T Response of surface ozone over the continental United States to UV radiation declines from the expected recovery of stratospheric ozone
%J -
%D 2018
%R https://doi.org/10.1038/s41612-018-0045-5
%X The response of surface ozone concentrations to decreases in ultraviolet (UV) radiation that are expected from the recovery of stratospheric ozone by the end of the twenty-first century is examined with the regional WRF¨CChem model. The study is performed over the continental United States for the summer of 2010 at 12£¿km horizontal resolution which, compared to previous studies, allows a better separation of chemical regimes that exhibit opposite responses to UV radiation changes. Our results show that on the regional scale, surface ozone is expected to increase by 0.5 to 1£¿ppb due to its slower destruction, while the opposite can be seen in the vicinity of some urban centers where ozone concentrations could decrease by up to 1£¿ppb due to its slower photochemical production. Geographic overlay with population shows however a relatively small net increase in exposure of ~£¿0.4£¿ppb, with an asymmetric distribution characterized by some disbenefit to the majority of the US population and a benefit to a relatively small fraction (~4%) of population
%U https://www.nature.com/articles/s41612-018-0045-5