{"id":"W2005460296","doi":"10.1111/j.1745-6584.2008.00467.x","title":"Some Considerations in Applying Background Concentrations to Ground Water Studies","year":2008,"lang":"en","type":"article","venue":"Ground Water","topic":"Chemical Analysis and Environmental Impact","field":"Environmental Science","cited_by":15,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Groundwater; Environmental science; Geology; Geotechnical engineering","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":["metaresearch"],"consensus_categories":[],"category_scores_codex":[0.2199022,0.002196606,0.003652561,0.008061725,0.007543238,0.01395621,0.01354653,0.01501829,0.002406973],"category_scores_gemma":[0.3427579,0.001565158,0.003023876,0.009073999,0.01951786,0.01283491,0.008500498,0.01956498,0.001528477],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.01139984,"about_ca_system_score_gemma":0.01180303,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.02552286,"about_ca_topic_score_gemma":0.03926101,"domain_scores_codex":[0.7428067,0.176989,0.02269622,0.009891029,0.04524927,0.002367746],"domain_scores_gemma":[0.6344034,0.2527249,0.0117238,0.008900065,0.0899469,0.002300957],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.0004338826,0.0002646772,0.01756239,0.00955568,0.0005082088,0.004033775,0.03211736,0.002898857,0.002802323,0.4295599,0.1961292,0.3041337],"study_design_scores_gemma":[0.00009521976,0.0005339491,0.007903834,0.0188136,0.0002543862,0.001769085,0.01985453,0.003001432,0.003400129,0.3352152,0.6087804,0.000378144],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"commentary","genre_gemma":"methods","genre_scores_codex":[0.0083998,0.1686164,0.1978579,0.5441782,0.0397227,0.001448122,0.0006568722,0.0004678614,0.03865217],"genre_scores_gemma":[0.1132377,0.07458178,0.4385538,0.3139856,0.03980245,0.004184346,0.0004609409,0.001022058,0.01417134],"genre_candidate":"methods","genre_consensus":null,"teacher_disagreement_score":0.2199022,"threshold_uncertainty_score":0.9619995,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.06004412522184188,"score_gpt":0.2724442738311709,"score_spread":0.212400148609329,"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."}}