{"query":{"parameter":"polycyclic aromatic hydrocarbons","place":"US-RI","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-RI","US"],"parameter_keys":["name:polycyclic aromatic hydrocarbons","name:polycyclic aromatic hydrocarbons, total of ten (acenaphthylene, benzo(a)anthracene, benzo(a)pyrene, benzo(b)fluoranthene, benzo(ghi)perylene, benzo(k)fluoranthene, chrysene, dibenzo(a,h)anthracene, indeno(1,2,3-cd)pyrene, phenanthrene)"],"names_matched":[["polycyclic aromatic hydrocarbons","name:polycyclic aromatic hydrocarbons"],["polycyclic aromatic hydrocarbons total of ten acenaphthylene benzo a anthracene benzo a pyrene benzo b fluoranthene benzo ghi perylene benzo k fluoranthene chrysene dibenzo a h anthracene indeno 1 2 3 cd pyrene phenanthrene","name:polycyclic aromatic hydrocarbons, total of ten (acenaphthylene, benzo(a)anthracene, benzo(a)pyrene, benzo(b)fluoranthene, benzo(ghi)perylene, benzo(k)fluoranthene, chrysene, dibenzo(a,h)anthracene, indeno(1,2,3-cd)pyrene, phenanthrene)"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":3,"offset":0,"returned":3,"next_offset":null,"rows":[{"id":"72aabd89b0f55df5","parameter":"Polycyclic Aromatic Hydrocarbons","value":"0.038","value_num":0.038,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:polycyclic aromatic hydrocarbons","place":["US-RI"],"conditions":["receiving_water is freshwater","waters whose designated route of exposure is drinking water and aquatic organisms"],"cite":{"instrument":"us_ri_wqs","title":"250-RICR-150-05-1 Water Quality Regulations (Rhode Island), § 1.26(J) acute and chronic aquatic life criteria for freshwater and saltwater and human health criteria; § 1.10 class pH","issuer":"State of Rhode Island, Department of Environmental Management","edition":"effective January 13, 2026, as US EPA posts it in effect for Clean Water Act purposes (the chronic mercury revisions and the freshwater xylene criteria still under EPA review)","source_url":"https://www.epa.gov/system/files/documents/2026-04/rhode-island-wqs.pdf","source_sha256":"6a4f444874a8d35b77506ed07b9c2f70c467c8fef3325b8a09ddfc78df5b3743","fetched_at":"2026-10-10","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"250-RICR-150-05-1 § 1.26(J)","page":165,"quote":null}},{"id":"9aac70f91d921594","parameter":"Polycyclic Aromatic Hydrocarbons","value":"0.18","value_num":0.18,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:polycyclic aromatic hydrocarbons","place":["US-RI"],"conditions":["receiving_water is freshwater","waters whose designated route of exposure is aquatic organisms only"],"cite":{"instrument":"us_ri_wqs","title":"250-RICR-150-05-1 Water Quality Regulations (Rhode Island), § 1.26(J) acute and chronic aquatic life criteria for freshwater and saltwater and human health criteria; § 1.10 class pH","issuer":"State of Rhode Island, Department of Environmental Management","edition":"effective January 13, 2026, as US EPA posts it in effect for Clean Water Act purposes (the chronic mercury revisions and the freshwater xylene criteria still under EPA review)","source_url":"https://www.epa.gov/system/files/documents/2026-04/rhode-island-wqs.pdf","source_sha256":"6a4f444874a8d35b77506ed07b9c2f70c467c8fef3325b8a09ddfc78df5b3743","fetched_at":"2026-10-10","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"250-RICR-150-05-1 § 1.26(J)","page":165,"quote":null}},{"id":"9a1d9e50feef948a","parameter":"Polycyclic Aromatic Hydrocarbons","value":"0.18","value_num":0.18,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:polycyclic aromatic hydrocarbons","place":["US-RI"],"conditions":["receiving_water is marine","waters whose designated route of exposure is aquatic organisms only"],"cite":{"instrument":"us_ri_wqs","title":"250-RICR-150-05-1 Water Quality Regulations (Rhode Island), § 1.26(J) acute and chronic aquatic life criteria for freshwater and saltwater and human health criteria; § 1.10 class pH","issuer":"State of Rhode Island, Department of Environmental Management","edition":"effective January 13, 2026, as US EPA posts it in effect for Clean Water Act purposes (the chronic mercury revisions and the freshwater xylene criteria still under EPA review)","source_url":"https://www.epa.gov/system/files/documents/2026-04/rhode-island-wqs.pdf","source_sha256":"6a4f444874a8d35b77506ed07b9c2f70c467c8fef3325b8a09ddfc78df5b3743","fetched_at":"2026-10-10","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"250-RICR-150-05-1 § 1.26(J)","page":165,"quote":null}}],"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-RI"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"polycyclic aromatic hydrocarbons\", 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-RI"},"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"}]}