{"id":47547,"date":"2026-05-19T11:02:40","date_gmt":"2026-05-19T17:02:40","guid":{"rendered":"http:\/\/10.100.20.231\/normalizacion\/nom-023-ssa1-2021\/"},"modified":"2026-05-19T11:02:40","modified_gmt":"2026-05-19T17:02:40","slug":"nom-023-ssa1-2021","status":"publish","type":"post","link":"http:\/\/10.100.20.231\/normalizacion\/nom-023-ssa1-2021\/","title":{"rendered":"NOM-023-SSA1-2021"},"content":{"rendered":"\r\n<div class=\"wp-container-3 wp-block-group barra intro-interior sin-barra norma-detalles\">\r\n\r\n\r\n<div class=\"wp-block-columns\">\r\n\r\n\r\n\r\n<div class=\"wp-container-2 wp-block-group barra intro-interior sin-barra norma-detalles\">\r\n\r\n\r\n<div class=\"wp-block-columns\">\r\n\r\n\r\n<div class=\"wp-block-column\">\r\n\r\n\r\n<div class=\"wp-container-1 wp-block-group yoast-breadcrumbs\">\r\n\r\n<a href=\"https:\/\/platiica.economia.gob.mx\/\">Inicio<\/a> &gt; <a href=\"https:\/\/platiica.economia.gob.mx\/normalizacion\/\">Normalizaci\u00f3n<\/a> &gt; <a href=\"https:\/\/platiica.economia.gob.mx\/normalizacion\/catalogo-mexicano-de-normas\/\">Cat\u00e1logo Mexicano de Normas<\/a> &gt; NOM-023-SSA1-2021\r\n\r\n<\/div>\r\n\r\n\r\n\r\n<h2 id=\"titulo-blog\">Normas<\/h2>\r\n\r\n\r\n\r\n<h1 class=\"has-medium-font-size\">NOM-023-SSA1-2021<\/h1>\r\n\r\n\r\n<!-- wp:buttons }} -->\r\n<div class=\"wp-block-buttons\">\r\n\r\n\r\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link\" href=\"https:\/\/www.dof.gob.mx\/nota_detalle.php?codigo=5633854&#038;fecha=27\/10\/2021\" target=\"_blank\" rel=\"noopener\">Publicaci\u00f3n en el DOF<\/a><\/div>\r\n\r\n\r\n<\/div>\r\n\r\n\r\n\r\n<h3>Informaci\u00f3n principal<\/h3>\r\n\r\n<p style=\"text-align: justify;\"><strong>Clave de la Norma:<\/strong> NOM-023-SSA1-2021<\/p>\r\n<p style=\"text-align: justify;\"><strong>T\u00edtulo de la Norma:<\/strong> Salud ambiental. Criterio para evaluar la calidad del aire ambiente, con respecto al di\u00f3xido de nitr\u00f3geno (NO2). Valores normados para la concentraci\u00f3n de di\u00f3xido de nitr\u00f3geno (NO2) en el aire ambiente, como medida de protecci\u00f3n a la salud de la poblaci\u00f3n.<\/p>\r\n<p style=\"text-align: justify;\"><strong>Estado de la Norma:<\/strong> Vigente<\/p>\r\n<p style=\"text-align: justify;\"><strong>Fecha de publicaci\u00f3n en el DOF:<\/strong> 27\/10\/2021<\/p>\r\n<p style=\"text-align: justify;\"><strong>Fecha de entrada en vigor:<\/strong> 26\/12\/2021<\/p>\r\n\r\n<h3>Informaci\u00f3n general<\/h3>\r\n\r\n<p style=\"text-align: justify;\"><strong>Producto, servicio, proceso o sistema:<\/strong> Calidad del aire<\/p>\r\n<p style=\"text-align: justify;\"><strong>Dependencia(s):<\/strong> <ul><li>Comisi\u00f3n Federal para la Protecci\u00f3n contra Riesgos Sanitarios<\/li><\/ul><\/p>\r\n<p style=\"text-align: justify;\"><strong>Comit\u00e9 que desarroll\u00f3 la Norma:<\/strong> <ul><li>Comit\u00e9 Consultivo Nacional de Normalizaci\u00f3n de Regulaci\u00f3n y Fomento Sanitario<\/li><\/ul><\/p>\r\n\r\n<h3>Concordancia internacional<\/h3>\r\n\r\n<p style=\"text-align: justify;\"><li><p style=\"text-align: justify;\">Esta Norma no es equivalente a ninguna Norma internacional ni mexicana.<\/li><\/p><\/p>\r\n<p style=\"text-align: justify;\"><strong>Grado:<\/strong> No equivalente<\/p>\r\n<p style=\"text-align: justify;\"><h3>Historial Documental de la Norma<\/h3> <ul><li><p style=\"text-align: justify;\">PROYECTO de Norma Oficial Mexicana PROY-NOM-023-SSA1-2020, Salud ambiental. Criterio para evaluar la calidad del aire ambiente, con respecto al di\u00f3xido de nitr\u00f3geno (NO2). Valores normados para la concentraci\u00f3n de di\u00f3xido de nitr\u00f3geno (NO2) en el aire ambiente, como medida de protecci\u00f3n a la salud de la poblaci\u00f3n.<\/p> <a target=\"_blank\" href=\"https:\/\/www.dof.gob.mx\/nota_detalle.php?codigo=5601338&#038;fecha=28\/09\/2020#gsc.tab=0\" rel=\"noopener\"> Enlace<\/a> <\/li>\n <li><p style=\"text-align: justify;\">NORMA Oficial Mexicana NOM-023-SSA1-2021, Salud ambiental. Criterio para evaluar la calidad del aire ambiente, con respecto al di\u00f3xido de nitr\u00f3geno (NO2). Valores normados para la concentraci\u00f3n de di\u00f3xido de nitr\u00f3geno (NO2) en el aire ambiente, como medida de protecci\u00f3n a la salud de la poblaci\u00f3n.<\/p> <a target=\"_blank\" href=\"https:\/\/www.dof.gob.mx\/nota_detalle.php?codigo=5633854&#038;fecha=27\/10\/2021#gsc.tab=0\" rel=\"noopener\"> Enlace<\/a> <\/li><\/ul><\/p>\r\n<p style=\"text-align: justify;\"><h3>Referencias Normativas<\/h3> <ul><li><p style=\"text-align: justify;\">NORMA OFICIAL MEXICANA NOM-037-SEMARNAT-1993, QUE ESTABLECE LOS M\u00c9TODOS DE MEDICI\u00d3N PARA DETERMINAR LA CONCENTRACI\u00d3N DE BI\u00d3XIDO DE NITR\u00d3GENO EN EL AIRE AMBIENTE Y LOS PROCEDIMIENTOS PARA LA CALIBRACI\u00d3N DE LOS EQUIPOS DE MEDICI\u00d3N.<\/p> <a target=\"_blank\" href=\"https:\/\/siga.jalisco.gob.mx\/assets\/documentos\/normatividad\/nom037semarnat1993.htm\" rel=\"noopener\"> Enlace<\/a> <\/li> \n <li><p style=\"text-align: justify;\">NORMA Oficial Mexicana NOM-156-SEMARNAT-2012, Establecimiento y operaci\u00f3n de sistemas de monitoreo de la calidad del aire.<\/p> <a target=\"_blank\" href=\"https:\/\/www.dof.gob.mx\/normasOficiales\/4804\/semarnat\/semarnat.html\" rel=\"noopener\"> Enlace<\/a> <\/li><\/ul><\/p>\r\n<p style=\"text-align: justify;\"><h3>Bibliograf\u00eda<\/h3> <ul><li><p style=\"text-align: justify;\">Atkinson R. W., Butland B. K., Anderson H. R., Maynard R. L., (2018) Long-term Concentrations of Nitrogen Dioxide and Mortality: A Meta-analysis of Cohort Studies. Epidemiology. 29(4):460-472. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Casas Castillo M. C., Alarc\u00f3n Jord\u00e1n M., 1999. Meteorolog\u00eda y Clima. ISBN: 84-8301-355-X.<\/li><\/p> \n <li><p style=\"text-align: justify;\">Chen G., Wan X., Yang G., Zou X., Traffic-related air pollution and lung cancer: A meta-analysis. Thorac Cancer., 6(3): 307-318. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Chen L., Villeneuve P. J., Rowe B. H., Liu L., Stieb D. M., (2014), The Air Quality Health Index as a predictor of emergency department visits for ischemic stroke in Edmonton, Canada., J. Expo Sci. Environ. Epidemiol., 24(4): 358-364. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Chen X., Zhang L. W., Huang J. J., Song F. J., Zhang L. P., Qian Z. M., Trevathan E., et al. (2016), Long-term exposure to urban air pollution and lung cancer mortality: A 12-year cohort study in Northern China., Sci. Total Environ., 15;571:855-861. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Cheng Y., Ermolieva T., Cao G. Y., Zheng X., (2018), Health Impacts of Exposure to Gaseous Pollutants and Particulate Matter in Bejjing-A Non-Linear Analysis Based on the New Evidence. Int J Environ Res Public Health, 10;15(9). <\/li><\/p>\n <li><p style=\"text-align: justify;\">Faustini A., Rapp R., Forastiere F., (2014), Nitrogen dioxide and mortality: review and meta-analysis of long-term studies., Eur Respir J., 44(3):744-53. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Gruzieva O., Xu C. J., Breton C. V., Annesi-Maesano I., et al., (2017) Epigenome-Wide Meta-Analysis of Methylation in Children Related to Prenatal NO2 Air Pollution Exposure., Environ Health Perspect., 125(1): pp. 104-110. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Hamra G. B., Laden F., Cohen A. J., Raaschou-Nielsen O., Brauer M., Loomis D., (2015) Lung Cancer and Exposure to Nitrogen Dioxide and Traffic: A Systematic Review and Meta-Analysis., Environ Health Perspect., 123(11):1107-1112. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Hu C. Y., Fang Y., Li F. L., et al., (2019), Association between ambient air pollution and Parkinson&#8217;s disease: Systematic review and meta-analysis, Environ Res. 168:448-459. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Instituto Nacional de Ecolog\u00eda (INE-SERMARNAT). 2011. Cuarto almanaque de datos y tendencias de la calidad del aire en 20 ciudades mexicanas (2000-2009). M\u00e9xico, D.F. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Instituto Nacional de Ecolog\u00eda y Cambio Clim\u00e1tico (INECC). 2018. Informe Nacional de Calidad del Aire 2017, M\u00e9xico. Coordinaci\u00f3n General de Contaminaci\u00f3n y Salud ambiental, Direcci\u00f3n de Investigaci\u00f3n de Calidad del Aire y Contaminantes Clim\u00e1ticos. Ciudad de M\u00e9xico. Diciembre 2018. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Jung C. R., Chung W. T., Chen W. T., et al., (2019), Long-term exposure to traffic-related air pollution and systemic lupus erythematosus in Taiwan: A cohort study. Sci Total Environ., 668:342-349. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Lertxundi A, Baccini M, Lertxundi N, et al. Exposure to fine particle matter, nitrogen dioxide and benzene during pregnancy and cognitive and psychomotor developments in children at 15 months of age. Environ Int. 2015 Jul;80:33-40. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Liang Z., Xu C., Cao Y., Kan H. D., Chen R. J., Yao C. Y., Liu X. L., Xiang Y., Wu N., Wu L., Li Y. F., Ji A. L., (2019), The association between short-term ambient air pollution and daily outpatient visits for schizophrenia: A hospital-based study. Environ Pollut., 244:102-108. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Linares B., M. Guizar J., Amador, N., Garcia, A., Miranda, V., Perez, J. R., Chapela, R., 2010. Impact of air pollution on pulmonary function and respiratory symptoms in children. Longitudinal repeated-measures study. BMC Pulmonary Medicine, 10: 62. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Liu L., Poon R., Chen L., Frescura A. M., Montuschi P., Ciabattoni G., Wheeler A., Dales R., (2009). Acute effects of air pollution on pulmonary function, airway inflammation, and oxidative stress in asthmatic children. Environ. Health Perspect 117(4): 668-674. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Mills I. C., Atkinson R. W., Anderson H. R., et al. (2016), Distinguishing the associations between daily mortality and hospital admissions and nitrogen dioxide from those of particulate matter: a systematic review and meta-analysis, BMJ Open. 6(7):e010751. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Milojevic A., Wilkinson P., Armstrong B., Bhaskaran K., Smeeth L., Hajat S., (2014). Short-term effects of air pollution on a range of cardiovascular events in England and Wales: case-crossover analysis of the MINAP database, hospital admissions and mortality. Heart, 100(14): 1093-1098. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Newell K., Kartsonaki C., Lam K. B. H., et al., (2018), Cardiorespiratory health effects of gaseous ambient air pollution exposure in low and middle income countries: a systematic review and meta-analysis., Environ Health, 18;17(1):41. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Nyberg F., Gustavsson P., J\u00e4rup L., Bellander T., Berglind N., Jakobsson R., Pershagen G., (2000), Urban air pollution and lung cancer in Stockholm. Epidemiology 11(5):487-495. <\/li><\/p>\n <li><p style=\"text-align: justify;\">O&#8217;connor G. T., Neas L., Vaughn B., Kattan M., Mitchell H., Crain, E. F., Evans R., Gruchalla R., Morgan W., Stout J., Adams G. K., Lippmann M., (2008). Acute respiratory health effects of air pollution on children with asthma in US inner cities. J Allergy Clin Immunol, 121(5): 1133-1139. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Organizaci\u00f3n Mundial de la Salud (OMS)., 2005. Gu\u00edas de Calidad del Aire de la OMS relativas al material particulado, el ozono, el di\u00f3xido de nitr\u00f3geno y el di\u00f3xido de azufre <\/p> <a target=\"_blank\" href=\"https:\/\/apps.who.int\/iris\/bitstream\/handle\/10665\/69478\/WHO_SDE_PHE_OEH_06.02_spa.pdf;jsessionid=2AC85F7FC5F727C4C6C10E06AE3CF64B?sequence=1\" rel=\"noopener\"> Enlace<\/a> <\/li>\n <li><p style=\"text-align: justify;\">Oudin A., Br\u00e5b\u00e4ck L., \u00c5str\u00f6m D. O., et al., (2016), Association between neighbourhood air pollution concentrations and dispensed medication for psychiatric disorders in a large longitudinal cohort of Swedish children and adolescents. BMJ Open. 6(6):e010004 <\/li><\/p>\n <li><p style=\"text-align: justify;\">Oudin A., Br\u00e5b\u00e4ck L., Oudin \u00c5str\u00f6m D., et al., (2017), Air Pollution and Dispensed Medications for Asthma, and Possible Effect Modifiers Related to Mental Health and Socio-Economy: A Longitudinal Cohort Study of Swedish Children and Adolescents, Int J Environ Res Public Health. 16;14(11). <\/li><\/p>\n <li><p style=\"text-align: justify;\">Peel J. L., Metzger K. B., Klein M., Flanders W. D., Mulholland J. A., Tolbert P. E., (2007). Ambient air pollution and cardiovascular emergency department visits in potentially sensitive groups. Am J Epidemiol 165(6): 625-633. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Pereira L. A., Loomis D., Conceicao G. M., Braga A. L., Arcas R. M., Kishi H. S., Singer J. M., B\u00f6hm G. M., Saldiva P.H., (1998). Association between air pollution and intrauterine mortality in Sao Paulo, Brazil, Environ Health Perspect, 106(6): 325-329. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Poloniecki J. D., Atkinson R. W., De Leon A. P., Anderson H. R., (1997). Daily time series for cardiovascular hospital admissions and previous day&#8217;s air pollution in London, UK. Occup Environ Med, 54(8): 535-540. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Rivera Palacios M., Hern\u00e1ndez Cadena L., tesis para obtener el grado de Especialidad en Salud \n P\u00fablica y Medicina Preventiva. Instituto Nacional de Salud P\u00fablica. Ciudad de M\u00e9xico, D.F. 2013<\/li><\/p>\n <li><p style=\"text-align: justify;\">Rodr\u00edguez-Villamizar L. A., Rojas-Roa N. Y., Fern\u00e1ndez-Ni\u00f1o J. A., (2019), Short-term joint effects of ambient air pollutants on emergency department visits for respiratory and circulatory diseases in Colombia, 2011-<\/li><\/p>\n <li><p style=\"text-align: justify;\">Schembari A., Nieuwenhuijsen M. J., Salvador J., et al., (2014) Traffic-related air pollution and congenital anomalies in Barcelona. Environ Health Perspect. 122(3):317-323. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Secretar\u00eda del Medio Ambiente y Recursos Naturales (SEMARNAT), <\/p> <a target=\"_blank\" href=\"https:\/\/www.gob.mx\/semarnat\/documentos\/documentos-del-inventario-nacional-de-emisiones\" rel=\"noopener\"> Enlace<\/a> <\/li>\n <li><p style=\"text-align: justify;\">Secretar\u00eda del Medio Ambiente y Recursos Naturales (SEMARNAT), Inventario Nacional de Emisiones de M\u00e9xico (INEM) 2016<\/p> <a target=\"_blank\" href=\"https:\/\/www.gob.mx\/semarnat\/acciones-y-programas\/inventario-nacional-de-emisiones-de-contaminantes-criterio-inem\" rel=\"noopener\"> Enlace<\/a> <\/li>\n <li><p style=\"text-align: justify;\">Son J. Y; Lee, Jt; Park, Yh; Bell, Ml. (2013). Short-term effects of air pollution on hospital admissions in Korea. Epidemiology 24: 545-554. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Strak M., Janssen N., Beelen R., et al., (2017), Long-term exposure to particulate matter, NO2 and the oxidative potential of particulates and diabetes prevalence in a large national health survey. Environ Int.., 108, pp. 228-236. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Strickland M. J., Darrow L. A., Klein M., Flanders W. D., Sarnat J. A., Waller L. A., Sarnat S. E., Mulholland J. A., Tolbert P. E., (2010). Short-term associations between ambient air pollutants and pediatric asthma emergency department visits. Am J Respir Crit Care Med, 182(3): 307-316. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Uni\u00f3n Europea (UE). 2014. Air Quality Standards.<\/p> <a target=\"_blank\" href=\"http:\/\/ec.europa.eu\/environment\/air\/quality\/standards.htm\" rel=\"noopener\"> Enlace<\/a> <\/li>\n <li><p style=\"text-align: justify;\">USEPA (United States Environmental Protection Agency)., (2014). National Ambient Air Quality Standards (NAAQS)<\/p> <a target=\"_blank\" href=\"https:\/\/www.epa.gov\/criteria-air-pollutants\/naaqs-table\" rel=\"noopener\"> Enlace<\/a> <\/li>\n <li><p style=\"text-align: justify;\">Vineis P., Hoek G., Krzyzanowski M., Vigna-Taglianti F, Veglia F, Airoldi L. et al. (2006) Air pollution and risk of lung cancer in a prospective study in Europe. Int J Cancer 119(1):169-174. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Weinmayr G., Romeo E., De Sario M., Weiland S. K., Forastiere F., (2010) Short-term effects of PM10 and NO2 on respiratory health among children with asthma or asthma-like symptoms: a systematic review and meta-analysis. Environ Health Perspect. 118(4):449-57. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Xia X., Zhang A., Liang S., et al., (2017), The Association between Air Pollution and Population Health Risk for Respiratory Infection: A Case Study of Shenzhen, China., Int J Environ Res Public Health, 23;14(9). <\/li><\/p>\n <li><p style=\"text-align: justify;\">Yang H., Li S., Sun L., et al., (2019), Smog and risk of overall and type-specific cardiovascular diseases: A pooled analysis of 53 cohort studies with 21.09 million participants., Environ Res., 172:375-383. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Zhang Z., Wang J., Lu W., (2018), Exposure to nitrogen dioxide and chronic obstructive pulmonary disease (COPD) in adults: a systematic review and meta-analysis. Environ Sci Pollut Res Int., 25(15): 15133-15145. <\/li><\/p>\n <li><p style=\"text-align: justify;\">Zhong J. Y., Lee Y. C., Hsieh C. J., Tseng C. C., Yiin L. M., (2018), Association between Dry Eye Disease, Air Pollution and Weather Changes in Taiwan. Int J Environ Res Public Health., 16; 15 (10).<\/li><\/p><\/ul><\/p>\r\n<p style=\"text-align: justify;\"><h3>Hist\u00f3rico de cancelaciones<\/h3> <ul>NOM-023-SSA1-1993<\/ul><\/p>\r\n<h3>Revisi\u00f3n Sistem\u00e1tica<\/h3> <ul><li>\n <div class=\"\"fecha-oficial\"\"> Fecha de \u00faltima revisi\u00f3n sistem\u00e1tica: <\/div>\n <div class=\"\"dato-fecha-oficial\"\">08 de enero de 2026<\/div>\n <div class=\"\"tipo\"\"> Resultado del informe: <\/div>\n <div class=\"\"resolucion\"\">Confirmaci\u00f3n\n<\/div>\n <a target=\"\"_blank\"\" href=\"https:\/\/platiica.economia.gob.mx\/wp-content\/uploads\/sites\/2\/InformedeRevision\/NOM-023-SSA1-2021_2026_ultima%20revisi%C3%B3n.pdf?_t=1767920640\"> Descarga el informe de revisi\u00f3n <\/a> \n<\/li><\/ul>\r\n\r\n\r\n\r\n\r\n\r\n<!-- wp:buttons }} -->\r\n<div class=\"wp-block-buttons\">\r\n\r\n\r\n<div class=\"wp-block-button outline\"><a class=\"wp-block-button__link\" href=\"https:\/\/platiica.economia.gob.mx\/evaluacion-de-la-conformidad\/busqueda-avanzada\/?asp_s=NOM-023-SSA1-2021\">Organismos de Evaluaci\u00f3n de la Conformidad<\/a><\/div>\r\n\r\n\r\n\r\n<div class=\"wp-block-button outline\"><a class=\"wp-block-button__link\" href=\"https:\/\/platiica.economia.gob.mx\/verificacion-y-vigilancia\/busqueda-avanzada\/?asp_s=NOM-023-SSA1-2021\">Verificaciones<\/a><\/div>\r\n\r\n\r\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link\" target=\"_blank\" href=\"https:\/\/platiica.economia.gob.mx\/wp-content\/uploads\/sites\/2\/PDF_Normas_Publicas\/023-2021.pdf\" rel=\"noopener\">PDF de la Norma<\/a><\/div>\r\n\r\n<\/div>\r\n\r\n\r\n\r\n\r\n\r\n\r\n<\/div>\r\n\r\n\r\n<\/div>\r\n\r\n\r\n<\/div>\r\n\r\n\r\n<\/div>\r\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Salud ambiental. Criterio para evaluar la calidad del aire ambiente, con respecto al di\u00f3xido de nitr\u00f3geno (NO2). Valores normados para la concentraci\u00f3n de di\u00f3xido de nitr\u00f3geno (NO2) en el aire ambiente, como medida de protecci\u00f3n a la salud de la poblaci\u00f3n.<\/p>\n","protected":false},"author":40,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_links_to":"","_links_to_target":""},"categories":[328],"tags":[],"_links":{"self":[{"href":"http:\/\/10.100.20.231\/normalizacion\/wp-json\/wp\/v2\/posts\/47547"}],"collection":[{"href":"http:\/\/10.100.20.231\/normalizacion\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/10.100.20.231\/normalizacion\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/10.100.20.231\/normalizacion\/wp-json\/wp\/v2\/users\/40"}],"replies":[{"embeddable":true,"href":"http:\/\/10.100.20.231\/normalizacion\/wp-json\/wp\/v2\/comments?post=47547"}],"version-history":[{"count":0,"href":"http:\/\/10.100.20.231\/normalizacion\/wp-json\/wp\/v2\/posts\/47547\/revisions"}],"wp:attachment":[{"href":"http:\/\/10.100.20.231\/normalizacion\/wp-json\/wp\/v2\/media?parent=47547"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/10.100.20.231\/normalizacion\/wp-json\/wp\/v2\/categories?post=47547"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/10.100.20.231\/normalizacion\/wp-json\/wp\/v2\/tags?post=47547"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}