{"id":"W2004380096","doi":"10.1016/j.atmosenv.2004.03.030","title":"A review of surface ozone background levels and trends","year":2004,"lang":"en","type":"review","venue":"Atmospheric Environment","topic":"Atmospheric chemistry and aerosols","field":"Earth and Planetary Sciences","cited_by":1135,"is_retracted":false,"has_abstract":false,"ca_institutions":"Environment and Climate Change Canada","funders":"","keywords":"Northern Hemisphere; Ozone; Middle latitudes; Southern Hemisphere; Environmental science; Tropospheric ozone; Atmospheric sciences; Climatology; Troposphere; Latitude; Range (aeronautics); Ozone depletion; Geography; Meteorology; Geology","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03766477532188065,"score_gpt":0.2611391988174682,"score_spread":0.2234744234955875,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}