{"id":"W1994150580","doi":"10.1021/es048635b","title":"Fluorotelomer Carboxylic Acids and PFOS in Rainwater from an Urban Center in Canada","year":2005,"lang":"en","type":"article","venue":"Environmental Science & Technology","topic":"Per- and polyfluoroalkyl substances research","field":"Environmental Science","cited_by":141,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Manitoba; Fisheries and Oceans Canada","funders":"","keywords":"Perfluorooctane; Rainwater harvesting; Extraction (chemistry); Chemistry; Environmental chemistry; Solid phase extraction; Carboxylic acid; Electrospray ionization; Chromatography; Sulfonate; Mass spectrometry; Organic chemistry; Biology; 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":[0.0002731575,0.000201814,0.0001961925,0.0002787977,0.0001439554,0.00002878598,0.0008025929,0.0001141177,0.002965218],"category_scores_gemma":[0.00001119368,0.0001864521,0.00001470468,0.0007916588,0.001769848,0.0006559456,0.000606142,0.0003706521,0.0001572449],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.002804573,"about_ca_system_score_gemma":0.00007987791,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.3576935,"about_ca_topic_score_gemma":0.8159353,"domain_scores_codex":[0.9974186,0.00004692171,0.0002658504,0.0007811142,0.0005857275,0.0009017151],"domain_scores_gemma":[0.9993,0.00001605901,0.00003949183,0.0004262117,8.964315e-7,0.0002173282],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.000008979,0.00006997121,0.8041053,3.854633e-7,8.672515e-7,0.00002632238,0.0003897122,0.0001019352,0.1054732,0.000005911361,0.00004242247,0.08977491],"study_design_scores_gemma":[0.0006158575,0.00006030973,0.9309575,0.000007150567,0.000001267611,0.00001361376,0.0006899076,0.001759345,0.04233652,0.0001271585,0.02314568,0.0002856972],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9962072,0.0006780432,0.000003356939,0.001114399,0.0000515578,0.000230986,0.00002818662,0.00002204796,0.001664177],"genre_scores_gemma":[0.9988969,0.0001460256,0.000391463,0.000352061,0.00002052648,0.00004097256,0.000008024687,0.00001240435,0.0001316526],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.4582418,"threshold_uncertainty_score":0.9979462,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.004359899871238053,"score_gpt":0.2114623617107534,"score_spread":0.2071024618395153,"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."}}