{"id":"W1964596375","doi":"10.1016/j.atmosenv.2005.09.025","title":"Ambient air 1,3-butadiene concentrations in Canada (1995–2003): seasonal, day of week variations, trends, and source influences","year":2005,"lang":"en","type":"article","venue":"Atmospheric Environment","topic":"Indoor Air Quality and Microbial Exposure","field":"Environmental Science","cited_by":49,"is_retracted":false,"has_abstract":false,"ca_institutions":"Environment and Climate Change Canada","funders":"","keywords":"Environmental science; 1,3-Butadiene; Seasonality; Air mass (solar energy); Air pollution; Environmental chemistry; Atmospheric sciences; Physical geography; Hydrology (agriculture); Environmental engineering; Geography; Chemistry; Geology; Ecology","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":["insufficient_payload"],"consensus_categories":[],"category_scores_codex":[0.0002133825,0.0001695481,0.0002007075,0.000003710348,0.0001158737,0.000009262043,0.0001578236,0.00005442294,0.002021017],"category_scores_gemma":[0.00001947269,0.0001701322,0.00002645162,0.0002909409,0.0002061439,0.0001871332,0.000112339,0.0001175972,0.00004419508],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0009079693,"about_ca_system_score_gemma":0.0001077326,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.4201134,"about_ca_topic_score_gemma":0.4925414,"domain_scores_codex":[0.9985125,0.0001120751,0.000402436,0.0003280497,0.0003230137,0.0003219112],"domain_scores_gemma":[0.9994563,0.00004741443,0.0001491141,0.0002193811,0.000004073291,0.0001236417],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00002238266,0.0004323795,0.6321419,0.00001224618,0.00003536864,0.000007740176,0.00271498,0.2837454,0.006134677,0.0003038136,0.004353072,0.07009601],"study_design_scores_gemma":[0.0005387407,0.00008257995,0.8097048,0.00001429383,0.00002222359,0.000005470807,0.000412741,0.00656539,0.001133995,0.0000172429,0.1812527,0.0002498388],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9960766,0.0003160657,0.001151961,0.001330183,0.00006807894,0.0001903079,0.00003217141,0.00001029082,0.0008243521],"genre_scores_gemma":[0.9923158,0.000192016,0.005460482,0.0007646382,0.00002214849,0.00002303822,0.00001883078,0.00001106481,0.001192015],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.27718,"threshold_uncertainty_score":0.9988913,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.005427343137210709,"score_gpt":0.1854042737900939,"score_spread":0.1799769306528832,"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."}}