{"query":{"parameter":"dibenz","place":"US-VA","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-VA","US"],"parameter_keys":["name:dibenz","cas:192-65-4","cas:53-70-3","name:dibenz[a h]anthracene"],"names_matched":[["dibenz","name:dibenz"],["dibenz a e pyrene","cas:192-65-4"],["dibenz a h anthracene","cas:53-70-3"],["dibenz a h anthracene","name:dibenz[a h]anthracene"],["dibenz a h anthracene pah","cas:53-70-3"],["dibenz ah anthracene","cas:53-70-3"],["pah dibenz a h anthracene","cas:53-70-3"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order","not_sent":{"rows":7,"names":["~Dibenzo[a,e]pyrene","Dibenzo(a,h)anthracene"],"says":"7 rows share a parameter key with a longer name holding \"dibenz\" but are printed under names without these words (that key is wider than the name): not sent. Ask for one by its name or CAS number."}},"total":6,"offset":0,"returned":6,"next_offset":null,"rows":[{"id":"53d66d8b9e59a8b4","parameter":"Dibenz","value":"0.0012","value_num":0.0012,"direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:dibenz","place":["US-VA"],"conditions":["segments designated PWS (public water supply) in 9VAC25-260-390 through 9VAC25-260-540"],"cite":{"instrument":"us_va_wqs","title":"9VAC25-260-140 — Criteria for surface water (Virginia Water Quality Standards), Table of Parameters","issuer":"Commonwealth of Virginia, State Water Control Board (Department of Environmental Quality)","edition":"Virginia Administrative Code as served by the General Assembly's LIS on 2026-10-09; last amended Virginia Register Volume 40, Issue 24, eff. June 26, 2024","source_url":"https://law.lis.virginia.gov/admincode/title9/agency25/chapter260/section140/","source_sha256":"05d91f8142e13aa9978b182c77033df2412d2af9decd0586bcb8b3974972a5f7","fetched_at":"2026-10-09","section":"9VAC25-260-140 B, Table of Parameters (human health, public water supply)","page":null,"quote":"Dibenz (a, h) anthracene (µg/l) 53703 Known or suspected carcinogen; human health criteria at risk level 10 -5 . 0.0012 0.0013"}},{"id":"0bb98c8d8eaf69ae","parameter":"Dibenz","value":"0.0013","value_num":0.0013,"direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:dibenz","place":["US-VA"],"conditions":["all other surface waters, not designated PWS in 9VAC25-260-390 through 9VAC25-260-540"],"cite":{"instrument":"us_va_wqs","title":"9VAC25-260-140 — Criteria for surface water (Virginia Water Quality Standards), Table of Parameters","issuer":"Commonwealth of Virginia, State Water Control Board (Department of Environmental Quality)","edition":"Virginia Administrative Code as served by the General Assembly's LIS on 2026-10-09; last amended Virginia Register Volume 40, Issue 24, eff. June 26, 2024","source_url":"https://law.lis.virginia.gov/admincode/title9/agency25/chapter260/section140/","source_sha256":"05d91f8142e13aa9978b182c77033df2412d2af9decd0586bcb8b3974972a5f7","fetched_at":"2026-10-09","section":"9VAC25-260-140 B, Table of Parameters (human health, all other surface waters)","page":null,"quote":"Dibenz (a, h) anthracene (µg/l) 53703 Known or suspected carcinogen; human health criteria at risk level 10 -5 . 0.0012 0.0013"}},{"id":"ad8b906d111de064","parameter":"~Dibenz[a,h]anthracene","value":"0.11","value_num":0.11,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:53-70-3","place":["US"],"conditions":["Resident Soil (mg/kg)"],"cite":{"instrument":"us_rsl_soil","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Soil","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","section":null,"page":null,"quote":null,"table":"sols","column":"residentiel"}},{"id":"a3e249b46841c216","parameter":"~Dibenz[a,h]anthracene","value":"2.1","value_num":2.1,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:53-70-3","place":["US"],"conditions":["Industrial Soil (mg/kg)"],"cite":{"instrument":"us_rsl_soil","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Soil","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","section":null,"page":null,"quote":null,"table":"sols","column":"industriel"}},{"id":"c27fddfdb972edd3","parameter":"~Dibenz[a,h]anthracene","value":"0.096","value_num":0.096,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:53-70-3","place":["US"],"conditions":["Protection of Groundwater SSLs: Risk-based SSL (mg/kg); SSL values are based on DAF=1"],"cite":{"instrument":"us_rsl_soil","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Soil","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","section":null,"page":null,"quote":null,"table":"ssl","column":"risque"}},{"id":"ffa4b91c1215fb2f","parameter":"~Dibenz[a,h]anthracene","value":"0.025","value_num":0.025,"unit":"µg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:53-70-3","place":["US"],"conditions":["Tap Water (ug/L): Regional Screening Level (RSL) Summary Table (TR=1E-06, HQ=1) November 2024"],"cite":{"instrument":"us_rsl_tapwater","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Tap Water","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","section":null,"page":null,"quote":null,"table":"eau","column":"eau_robinet"}}],"next":[{"tool":"check_values","says":"Has your user measured this? check_values sets each of their results beside every row held here, with a verdict and the row's cite.","arguments":{"place":"US-VA"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"dibenz\", value, unit}, ...], any other parameters too."},"post":"/api/v1/check"},{"tool":"read_certificate","says":"Has your user a laboratory certificate? read_certificate reads every row it prints, each with its page, and checks them against these limits.","arguments":{"place":"US-VA"},"needs":{"content_base64":"The laboratory's certificate (PDF) or its XLSX, XLS or CSV export, as base64; or file_url, a public https address of it."},"post":"/api/v1/certificate"}]}