{"query":{"parameter":"benzene","place":"EU","medium":null,"statistic":null,"kind":null},"searched":{"places":["EU"],"parameter_keys":["cas:71-43-2"],"names_matched":[["benzene","cas:71-43-2"]],"match":"exact","order":"The place's own instruments first, then each place above it, each in its register's order","not_searched":{"names":115,"parameters":105,"some":["1 2 3 4 tetrachloro benzene","1 2 3 5 tetrachloro benzene","1 2 3 trimethyl benzene","1 2 4 5 tetrachloro benzene","1 2 4 trichloro benzene","1 3 5 trimethyl benzene","1 3 dimethylbutyl benzene","1 allyl 2 5 dimethoxy 3 4 methylenedioxy benzene","1 methyl 2 2 propenyl benzene","1 methylene 2 propenyl benzene","1 methylethenyl benzene homopolymer ar 2 hydroxy 2 methyl 1 oxopropyl derivs","1 methylethyl benzene oxidized polyphenyl residues","2 ou 4 methyl 4 6 ou 2 6 bis methylthio benzene 1 3 diamine","3 5 bis 1 1 dimethylethyl 4 hydroxy thio 2 1 benzene propanonic acid","acide benzene 1 2 4 5 tetracarboxylique compose avec le 4 5 dihydro 2 phenyl 1h imidazole 1 1","acide benzene dodecyl sulfonique","ammonium lauryl benzene sulfonate","benzene 1 1 2 2 2 trichloroethylidene bis 4 methoxy","benzene 1 1 dimethylethyl ethenyl","benzene 1 1 methylenebis 4 isocyanato homopolymer","benzene 1 2 bis 1 methylethyl","benzene 1 3 5 triethyl","benzene 1 bromo 2 methoxy","benzene 1 bromo 3 fluoro","benzene 1 bromo 4 methoxy"],"says":"115 other names contain \"benzene\" (105 parameters, over the 40 searched at once): ask for one of them by name."}},"total":2,"offset":0,"returned":2,"next_offset":null,"rows":[{"id":"ac5d4ffe4d72b46b","parameter":"Benzene","value":"5","value_num":5,"unit":"µg/m³","direction":"max","kind":"limit","medium":"ambient_air","level":"eu","parameter_key":"cas:71-43-2","place":["EU"],"conditions":["1 January 2010"],"cite":{"instrument":"eu_air","title":"Directive 2008/50/EC on ambient air quality and cleaner air for Europe, Annexes VII, XI, XII, XIII and XIV (Annex VI for the lead sampling method), consolidated text 18.09.2015 as amended by Commission Directive (EU) 2015/1480; with Directive 2004/107/EC Annex I","issuer":null,"edition":"02008L0050 — EN — 18.09.2015 — 001.002","source_url":"http://publications.europa.eu/resource/celex/02008L0050-20150918","source_sha256":null,"fetched_at":null,"source_status":{"checked":"2026-10-15","status":"not verified"},"section":"ANNEX XI LIMIT VALUES FOR THE PROTECTION OF HUMAN HEALTH","page":null,"quote":"Benzene Calendar year 5 μg/m 3 5 μg/m 3 (100 %) on 13 December 2000, decreasing on 1 January 2006 and every 12 months thereafter by 1 μg/m 3 to reach 0 % by 1 January 2010 1 January 2010","column":"valeur"}},{"id":"9b85f26905f05b60","parameter":"Benzene","value":"1,0 μg/l","value_num":1,"unit":"μg/l","direction":"max","kind":"limit","medium":"drinking_water","level":"eu","parameter_key":"cas:71-43-2","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: \"benzene\", 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"}]}