{"hq_id":"hq-c-mix-000018","name":"PFAS (total) — EPA 2024 drinking water HAL group","context":"human_adult","timestamp":"2026-06-17T20:37:33.994Z","risk_level":"moderate","risk_profile":{"magnitude":{"mean":0.35,"weightedMean":0.35,"std_dev":0,"confidence_interval_95":[0.35,0.35],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.35,"weight":0.35}]},"confidence":{"mean":0.5,"weightedMean":0.5,"std_dev":0,"confidence_interval_95":[0.5,0.5],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.5,"weight":0.35}]},"recency":{"mean":1,"weightedMean":1,"std_dev":0,"confidence_interval_95":[1,1],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":1,"weight":0.35}]},"methodology":{"mean":0.7,"weightedMean":0.7,"std_dev":0,"confidence_interval_95":[0.7,0.7],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.7,"weight":0.35}]},"specificity":{"mean":0.92,"weightedMean":0.92,"std_dev":0,"confidence_interval_95":[0.92,0.92],"source_positions":[{"source":"HQ_DIRECT","year":2026,"value":0.92,"weight":0.35}]},"consensus":{"exists":false,"strength":0,"disagreement_magnitude":0,"warning":"single_source_warning"}},"interpretation":{"summary":"Single source (HQ_DIRECT, 2026) indicates low to moderate risk.","confidence_note":"Evidence quality varies; interpretation requires caution.","context_note":null,"warning":"single_source_warning"},"sources":[],"warnings":["unmapped_classification:US EPA:group 1 carcinogen","unmapped_classification:US EPA:maximum contaminant level (mcl): 4 ng/l (4 ppt)","unmapped_classification:US EPA:maximum contaminant level (mcl): 10 ng/l","unmapped_classification:US EPA:hazard index (hi) ≤ 1","unmapped_classification:Stockholm Convention:annex a/b listed pops — pfos (2009), pfoa (2019), ","unmapped_classification:ECHA:reach universal-pfas restriction proposal (annex x","unmapped_classification:Health Canada:cepa schedule 1 class designation — pfas as a clas","unmapped_classification:AICIS:australia national pfas position statement","single_source_warning"],"meta":{"synthesis_version":"1.1.0","config_version":"1.1.0","n_sources":1,"db_version":12,"warnings":["unmapped_classification:US EPA:group 1 carcinogen","unmapped_classification:US EPA:maximum contaminant level (mcl): 4 ng/l (4 ppt)","unmapped_classification:US EPA:maximum contaminant level (mcl): 10 ng/l","unmapped_classification:US EPA:hazard index (hi) ≤ 1","unmapped_classification:Stockholm Convention:annex a/b listed pops — pfos (2009), pfoa (2019), ","unmapped_classification:ECHA:reach universal-pfas restriction proposal (annex x","unmapped_classification:Health Canada:cepa schedule 1 class designation — pfas as a clas","unmapped_classification:AICIS:australia national pfas position statement"]},"schema":"synthesis","_notice":"ALETHEIA output is reference data, not professional advice. Not a substitute for primary agency sources or qualified professionals. See https://aletheia.holisticquality.io/disclaimer.","_disclaimer_url":"https://aletheia.holisticquality.io/disclaimer"}