{"id":"W2086294256","doi":"10.1016/j.chemosphere.2014.09.033","title":"A 17-fold increase of trifluoroacetic acid in landscape waters of Beijing, China during the last decade","year":2014,"lang":"en","type":"article","venue":"Chemosphere","topic":"Per- and polyfluoroalkyl substances research","field":"Environmental Science","cited_by":85,"is_retracted":false,"has_abstract":false,"ca_institutions":"","funders":"Peking University; National Natural Science Foundation of China; University of Alberta","keywords":"Beijing; Trifluoroacetic acid; Tap water; China; Environmental science; Environmental chemistry; Sediment; Flux (metallurgy); Environmental engineering; Chemistry; Hydrology (agriculture); Geology; Geography; Chromatography; Geomorphology; Organic chemistry","routes":{"ca_aff":false,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0002019301,0.0002988122,0.0001979629,0.000892938,0.0003426167,0.000453303,0.0002039622,0.0004769453,0.0008325125],"category_scores_gemma":[0.0001639871,0.0001005562,0.0002953505,0.00115891,0.0001616587,0.0003349252,0.000212529,0.0001313852,0.000141976],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0007835701,"about_ca_system_score_gemma":0.0008044725,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.06468028,"about_ca_topic_score_gemma":0.05814929,"domain_scores_codex":[0.999874,0.00001237338,0.00001201517,0.00003897478,0.00003262486,0.00002992458],"domain_scores_gemma":[0.9998318,0.000007669305,0.00005571156,0.00000649369,0.0000728555,0.00002552613],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.000375366,0.00002896445,0.8574367,0.0002937254,0.0003061956,0.0007777765,0.0008599941,0.0004736608,0.1086837,0.0002046812,0.0009138701,0.02964525],"study_design_scores_gemma":[0.00000260402,0.00003126212,0.9942533,0.000006724807,0.00004015254,0.0001386478,0.0003643975,0.000195359,0.002926573,0.0000230607,0.002012336,0.000005572892],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9965952,0.001252799,0.0002338424,0.0001210777,0.00002091468,0.000004189731,0.0007818519,0.00001434157,0.0009758192],"genre_scores_gemma":[0.9972534,0.0006251734,0.0001800298,0.00005591373,0.0000153304,0.000005584784,0.0006298748,0.000003327602,0.001231365],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.06468028,"threshold_uncertainty_score":0.1286076,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.004909238113462727,"score_gpt":0.2139365444669714,"score_spread":0.2090273063535087,"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."}}