{"id":"W4220706980","doi":"10.3390/cli10030041","title":"Changing Air Quality and the Ozone Weekend Effect during the COVID-19 Pandemic in Toronto, Ontario, Canada","year":2022,"lang":"en","type":"article","venue":"Climate","topic":"Air Quality and Health Impacts","field":"Environmental Science","cited_by":23,"is_retracted":false,"has_abstract":true,"ca_institutions":"The Scarborough Hospital; University of Toronto","funders":"Natural Sciences and Engineering Research Council of Canada","keywords":"Ozone; Air quality index; Coronavirus disease 2019 (COVID-19); Weekend effect; Environmental science; Pandemic; Morning; Meteorology; Atmospheric sciences; Pollutant; 2019-20 coronavirus outbreak; Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2); Climatology; Geography; Chemistry; Medicine; Outbreak; Infectious disease (medical specialty)","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.000248455,0.0002071642,0.0002107076,0.0004610239,0.001223317,0.0007022273,0.0004132206,0.0003211728,0.001106998],"category_scores_gemma":[0.0006320176,0.0001513266,0.0002611228,0.00106635,0.0004098075,0.0002402781,0.0004338856,0.0003380466,0.00009472393],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.01396705,"about_ca_system_score_gemma":0.008289783,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.9881346,"about_ca_topic_score_gemma":0.9949006,"domain_scores_codex":[0.9997277,0.00002787051,0.0000114168,0.00003348348,0.00008926979,0.0001103022],"domain_scores_gemma":[0.9993524,0.00004653229,0.0001503256,0.00001840089,0.0002600814,0.0001722962],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00024347,0.00002964032,0.9920907,0.00003488372,0.00006704695,0.0002231076,0.001007093,0.000551486,0.001073517,0.00006118682,0.001375239,0.003242652],"study_design_scores_gemma":[0.000001305423,0.00001015957,0.9991315,0.000003426164,0.000005006765,0.000008582217,0.0004831285,0.00008572633,0.00003323259,0.000002507967,0.0002332008,0.000002264679],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9955739,0.0004182741,0.0000496542,0.000267355,0.00001227375,0.00001433032,0.001865821,0.000004872513,0.001793499],"genre_scores_gemma":[0.9983476,0.0001918977,0.000040532,0.00004555302,0.000004614907,0.000004630072,0.0007305355,0.000001297099,0.0006333113],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01396705,"threshold_uncertainty_score":0.1013385,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03889223516638007,"score_gpt":0.3236863324479244,"score_spread":0.2847940972815443,"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."}}