{"query":{"parameter":"3 3 dichlorobenzidine","place":"US-ND","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-ND","US"],"parameter_keys":["cas:91-94-1","name:3,3 −dichlorobenzidine","name:3,3-dichlorobenzidine","name:3,3’-dichlorobenzidine","name:dichlorobenzidine","cas:15110-84-6"],"names_matched":[["3 3 dichlorobenzidine","cas:91-94-1"],["3 3 dichlorobenzidine","name:3,3 −dichlorobenzidine"],["3 3 dichlorobenzidine","name:3,3-dichlorobenzidine"],["3 3 dichlorobenzidine","name:3,3’-dichlorobenzidine"],["dichlorobenzidine","name:dichlorobenzidine","dichlorobenzidine"],["dichlorobenzidine 3 3","name:dichlorobenzidine","dichlorobenzidine"],["dichlorobenzidine based","cas:15110-84-6","dichlorobenzidine"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order; rows for a marine receiving water after the rest, as none of the place's own rows names a marine, salt, estuarine, coastal or ocean water"},"total":9,"offset":0,"returned":9,"next_offset":null,"rows":[{"id":"404afc0dd0888580","parameter":"3,3'-Dichlorobenzidine","value":"0.049","value_num":0.049,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:91-94-1","place":["US-ND"],"conditions":["receiving_water is freshwater","human health: class I, IA and II streams and the classified lakes and reservoirs of appendix II (stream class: appendix I)"],"cite":{"instrument":"us_nd_wqs","title":"North Dakota Standards of Quality for Waters of the State (N.D. 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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","source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"table":"ssl","column":"risque"}},{"id":"8c384605246b2d52","parameter":"Dichlorobenzidine, 3,3'-","value":"0.13","value_num":0.13,"unit":"µg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:91-94-1","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","source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"table":"eau","column":"eau_robinet"}},{"id":"c59c9cc03333bed9","parameter":"3,3'-Dichlorobenzidine","value":"0.15","value_num":0.15,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:91-94-1","place":["US"],"conditions":["EPA's recommendation under Clean Water Act § 304(a): 'State and Tribal governments may use these criteria or use them as guidance in developing their own' — it binds a water once the state adopts it for the water's designated use","receiving_water is marine","consumption of organism only: a water designated for fish and shellfish taken from it, not a drinking-water source (fresh or salt)"],"cite":{"instrument":"us_nrwqc_human_health","title":"EPA National Recommended Water Quality Criteria — Human Health Criteria Table (water + organism, organism only)","issuer":"U.S. Environmental Protection Agency","edition":"EPA web table (fetched 2026-10-09); 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or file_url, a public https address of it."},"post":"/api/v1/certificate"}]}