{"query":{"parameter":"n nitrosodi n butylamine","place":"US-MS","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-MS","US"],"parameter_keys":["cas:924-16-3","name:n−nitrosodi−n−butylamine"],"names_matched":[["n nitrosodi n butylamine","cas:924-16-3"],["n nitrosodi n butylamine","name:n−nitrosodi−n−butylamine"]],"match":"exact","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":7,"offset":0,"returned":7,"next_offset":null,"rows":[{"id":"8f89771f60b9e9bd","parameter":"Nitrosodibutylamine","value":"0.0063","value_num":0.0063,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:924-16-3","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 freshwater","consumption of water + organism: a water designated a drinking-water source and for fish and shellfish (a designated use the state assigns)"],"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"}]}