{"query":{"parameter":"mercury","place":"EU","medium":null,"statistic":null,"kind":null},"searched":{"places":["EU"],"parameter_keys":["cas:7439-97-6","name:arsenic, cadmium (h), copper (h), lead (h), mercury, zinc","name:cadmium (h), copper (h), mercury, lead (h), zinc","cas:7487-94-7","name:mercury (+2)","cas:62-38-4","name:mercury ii","name:mercury, including methylmercury","name:mercury, total","name:mercury, total in water","name:mercury - total - methyl-","name:mercury, total recoverable","name:mercury - total - total","cas:22967-92-6","name:total mercury","name:mercure total"],"names_matched":[["mercury","cas:7439-97-6"],["arsenic cadmium h copper h lead h mercury zinc","name:arsenic, cadmium (h), copper (h), lead (h), mercury, zinc"],["arsenic cadmium h copper h lead h mercury zinc h","name:arsenic, cadmium (h), copper (h), lead (h), mercury, zinc"],["cadmium h copper h mercury lead h zinc","name:cadmium (h), copper (h), mercury, lead (h), zinc"],["cadmium h copper h mercury lead h zinc h","name:cadmium (h), copper (h), mercury, lead (h), zinc"],["mercuric chloride and other mercury salts","cas:7487-94-7"],["mercury 2","name:mercury (+2)"],["mercury 2 total recoverable","name:mercury (+2)"],["mercury acetato o phenyl","cas:62-38-4"],["mercury ii","name:mercury ii"],["mercury ii dissolved","name:mercury ii"],["mercury including methylmercury","name:mercury, including methylmercury"],["mercury total","name:mercury, total"],["mercury total in water","name:mercury, total in water"],["mercury total methyl","name:mercury - total - methyl-"],["mercury total recoverable","name:mercury, total recoverable"],["mercury total total","name:mercury - total - total"],["methyl mercury","cas:22967-92-6"],["total mercury","name:total mercury"],["total mercury freshwater","name:total mercury"],["total mercury marine","name:total mercury"],["mercure total","name:mercure total","mercure"],["mercure total hg","name:mercure total","mercure"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":1,"offset":0,"returned":1,"next_offset":null,"rows":[{"id":"fd5c8188dd69c516","parameter":"Mercury","value":"1,0 μg/l","value_num":1,"unit":"μg/l","direction":"max","kind":"limit","medium":"drinking_water","level":"eu","parameter_key":"cas:7439-97-6","place":["EU"],"conditions":[],"cite":{"instrument":"eu_dwd","title":"Directive (EU) 2020/2184 of the European Parliament and of the Council of 16 December 2020 on the quality of water intended for human consumption (recast), Annex I Part B — chemical parameters","issuer":"European Parliament and Council of the European Union","edition":"Directive (EU) 2020/2184, OJ L 435, 23.12.2020, p. 1","source_url":"https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184","source_sha256":"39c4a65fee1dfe9eecfdc1ba3f67d9dcbce681c4698a3b3dda2e9e9bb4fb0177","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"column":"valeur"}}],"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":"EU"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"mercury\", 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":"EU"},"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"}]}