{"query":{"parameter":"chromium vi","place":"MX","medium":null,"statistic":null,"kind":null},"searched":{"places":["MX"],"parameter_keys":["cas:18540-29-9","name:chromium (vi) (freshwater) chromium (vi) marine","cas:7440-47-3","name:chromium (+6)","name:chromium +6","name:chromium +6, total"],"names_matched":[["chromium vi","cas:18540-29-9"],["chromium vi freshwater chromium vi marine","name:chromium (vi) (freshwater) chromium (vi) marine"],["chromium 6","cas:7440-47-3","chromium 6"],["chromium 6","name:chromium (+6)","chromium 6"],["chromium 6","name:chromium +6","chromium 6"],["chromium 6 total","name:chromium +6, total","chromium 6"],["chromium 6 total recoverable","name:chromium (+6)","chromium 6"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order","not_sent":{"rows":18,"names":["Cromo"],"says":"18 rows share a parameter key with a longer name holding \"chromium vi\" but are printed under names without these words (that key is wider than the name), or keyed to a CAS number \"chromium vi\" does not name (another substance, whatever words its name holds): not sent. Ask for one by its name or CAS number."}},"total":2,"offset":0,"returned":2,"next_offset":null,"rows":[{"id":"9273bc020c17abf2","parameter":"Cromo Hexavalente","value":"280","value_num":280,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:18540-29-9","place":["MX"],"conditions":["uso de suelo: Uso agrícola/residencial /comercial (mg/kg)","NOTA: a. En caso de que se presenten diversos usos del suelo en un sitio, debe considerarse el uso que predomine. b. Cuando en los programas de ordenamiento ecológico y de desarrollo urbano no estén establecidos los usos del suelo, se usará el valor residencial.","1) Remediar hasta las concentraciones de referencia totales establecidas en la Tabla 1.","5.1.1. Cuando el suelo que se presume contaminado tiene una superficie menor o igual a 1 000 m 2 , el responsable procederá a remediar a las concentraciones de referencia totales (CR T ) señaladas en la Tabla 1 o a seguir cualquiera de las metodologías descritas en la presente Norma."],"cite":{"instrument":"mx_nom147_semarnat_ssa1_2004","title":"NOM-147-SEMARNAT/SSA1-2004 — criterios para determinar las concentraciones de remediación de suelos contaminados por arsénico, bario, berilio, cadmio, cromo hexavalente, mercurio, níquel, plata, plomo, selenio, talio y/o vanadio: Tabla 1 (CR T) and Tabla 2 (CR S)","issuer":"Secretaría de Medio Ambiente y Recursos Naturales and Secretaría de Salud, Estados Unidos Mexicanos","edition":"DOF 02/03/2007 (in force sixty natural days after publication — Transitorio Primero)","source_url":"https://dof.gob.mx/nota_detalle_popup.php?codigo=4964569","source_sha256":"90f1db381695867d8327ffa7cf74160031e0caf291db592a01c495816b91373a","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-16","status":"unchanged"},"section":"NOM-147-SEMARNAT/SSA1-2004, Tabla 1 (concentraciones de referencia totales, CR T, por tipo de uso de suelo)","page":null,"quote":"Cromo Hexavalente 280 510"}},{"id":"a784efacc27272a3","parameter":"Cromo Hexavalente","value":"510","value_num":510,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:18540-29-9","place":["MX"],"conditions":["uso de suelo: Uso industrial (mg/kg)","NOTA: a. En caso de que se presenten diversos usos del suelo en un sitio, debe considerarse el uso que predomine. b. Cuando en los programas de ordenamiento ecológico y de desarrollo urbano no estén establecidos los usos del suelo, se usará el valor residencial.","1) Remediar hasta las concentraciones de referencia totales establecidas en la Tabla 1.","5.1.1. Cuando el suelo que se presume contaminado tiene una superficie menor o igual a 1 000 m 2 , el responsable procederá a remediar a las concentraciones de referencia totales (CR T ) señaladas en la Tabla 1 o a seguir cualquiera de las metodologías descritas en la presente Norma."],"cite":{"instrument":"mx_nom147_semarnat_ssa1_2004","title":"NOM-147-SEMARNAT/SSA1-2004 — criterios para determinar las concentraciones de remediación de suelos contaminados por arsénico, bario, berilio, cadmio, cromo hexavalente, mercurio, níquel, plata, plomo, selenio, talio y/o vanadio: Tabla 1 (CR T) and Tabla 2 (CR S)","issuer":"Secretaría de Medio Ambiente y Recursos Naturales and Secretaría de Salud, Estados Unidos Mexicanos","edition":"DOF 02/03/2007 (in force sixty natural days after publication — Transitorio Primero)","source_url":"https://dof.gob.mx/nota_detalle_popup.php?codigo=4964569","source_sha256":"90f1db381695867d8327ffa7cf74160031e0caf291db592a01c495816b91373a","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-16","status":"unchanged"},"section":"NOM-147-SEMARNAT/SSA1-2004, Tabla 1 (concentraciones de referencia totales, CR T, por tipo de uso de suelo)","page":null,"quote":"Cromo Hexavalente 280 510"}}],"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":"MX"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"chromium vi\", value, unit}, ...], any other parameters too."},"post":"/api/v1/check","url":"https://passage-data.com/api/v1/check","page":"https://passage-data.com/limits/MX/chromium-vi#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":"MX"},"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","url":"https://passage-data.com/api/v1/certificate","page":"https://passage-data.com/limits/MX/chromium-vi#check"}]}