Refocus EPA research using the 2018 Back-to-Basics NAAQS memo

“Refocus its research activities on accountable real-world examinations of the efficacy of its regulations with a heavy emphasis on characterizing and better understanding natural, background, international, and anthropogenic contributions for key pollutants. It should embrace concepts laid out in the 2018 “Back-to-Basics Process for Reviewing National Ambient Air Quality Standards” memo to ensure that any science and risk assessment for the NAAQS matches congressional direction.”