{"id":990932,"date":"2023-01-18T09:00:00","date_gmt":"2023-01-18T09:00:00","guid":{"rendered":"https:\/\/palegreen-hyena-800612.hostingersite.com\/change-mac-diesel-engine-exhaust\/"},"modified":"2026-06-16T13:00:13","modified_gmt":"2026-06-16T13:00:13","slug":"change-mac-diesel-engine-exhaust","status":"publish","type":"post","link":"https:\/\/oikoslab.pl\/en\/change-mac-diesel-engine-exhaust\/","title":{"rendered":"Notice to Contractors: Change in MAC values for Diesel engine exhaust"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"990932\" class=\"elementor elementor-990932 elementor-990929\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6c3ad19 e-flex e-con-boxed e-con e-parent\" data-id=\"6c3ad19\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"vamtam-has-theme-widget-styles elementor-element elementor-element-327ecf0 elementor-widget elementor-widget-text-editor\" data-id=\"327ecf0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Information on changes in the law, a brief overview of the issue, sampling and analytical options for the parameter, and additional recommendations for testing harmful workplace agents.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a5d603e elementor-widget elementor-widget-heading\" data-id=\"a5d603e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Regulatory change<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"vamtam-has-theme-widget-styles elementor-element elementor-element-4c7dfe0 elementor-widget elementor-widget-text-editor\" data-id=\"4c7dfe0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Until 20 February 2023, the MAC value (NDS) for Diesel engine exhaust &mdash; respirable fraction &mdash; is 0.5 mg\/m&sup3;:<\/p>\n<div class=\"news-table-wrap\"><table class=\"news-table\"><thead><tr><th>No.<\/th><th>Name and code<\/th><th>MAC [mg\/m&sup3;]<\/th><th>Short-term<\/th><th>Ceiling<\/th><th>Notes<\/th><\/tr><\/thead><tbody><tr><td>468<\/td><td>Diesel engine exhaust &mdash; respirable fraction [-]<\/td><td>0.5<\/td><td>&ndash;<\/td><td>&ndash;<\/td><td>&ndash;<\/td><\/tr><\/tbody><\/table><\/div>\n<p>From 21 February 2023 a new<sup>1, 2<\/sup> MAC value for Diesel engine exhaust applies &mdash; measured as elemental carbon &mdash; 0.05 mg\/m&sup3;:<\/p>\n<blockquote>d) item 468 reads as follows:<\/blockquote>\n<div class=\"news-table-wrap\"><table class=\"news-table\"><thead><tr><th>No.<\/th><th>Name and code<\/th><th>MAC [mg\/m&sup3;]<\/th><th>Short-term<\/th><th>Ceiling<\/th><th>Notes<\/th><\/tr><\/thead><tbody><tr><td>468<\/td><td>Diesel engine exhaust [-] &mdash; measured as elemental carbon<\/td><td>0.05<\/td><td>&ndash;<\/td><td>&ndash;<\/td><td>&ndash;<\/td><\/tr><\/tbody><\/table><\/div>\n<p>The new definition of the maximum admissible concentration requires a new measurement method, entirely different from the one previously accepted. The previous method &mdash; as respirable dust fraction &mdash; no longer applies.<\/p>\n<p>Our laboratory does not hold accreditation for the new Diesel-exhaust method (elemental carbon); we do not currently own and will not purchase the instrumentation required for this method.<\/p>\n<p>It remains possible to provide accredited workplace air sampling<sup>A<\/sup> for occupational exposure assessment, performed by the OIKOS laboratory onto a quartz filter housed in a cassette, with selection of an accredited subcontractor for analysis and issuance of an accredited exposure indicator result<sup>A<\/sup> that may be used for conformity assessment in legally regulated areas<sup>5<\/sup>.<\/p>\n<p>These changes do not in any way affect our continued cooperation with your organisation.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-75fc3a0 elementor-widget elementor-widget-heading\" data-id=\"75fc3a0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Recommended complementary measurements<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"vamtam-has-theme-widget-styles elementor-element elementor-element-58d13fc elementor-widget elementor-widget-text-editor\" data-id=\"58d13fc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Taking into account the guidance<sup>2<\/sup> of the Central Institute for Labour Protection (CIOP-PIB) and the Nofer Institute of Occupational Medicine on workplace measurement of Diesel exhaust exposure, the OIKOS laboratory recommends and offers a complete package of accredited chemical-agent measurements:<\/p>\n<ul><li>carbon monoxide (CO)<sup>A<\/sup><\/li><li>nitric oxide (NO)<sup>A<\/sup><\/li><li>nitrogen dioxide (NO<sub>2<\/sub>)<sup>A<\/sup><\/li><li>formaldehyde<sup>A<\/sup><\/li><li>PAH (sum of products of concentrations and carcinogenic equivalency factors of 9 carcinogenic PAHs)<sup>A<\/sup><\/li><\/ul>\n<p>Of these agents, PAHs &mdash; polycyclic aromatic hydrocarbons &mdash; and formaldehyde are classified as <strong>workplace carcinogens<\/strong>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6e794ba elementor-widget elementor-widget-heading\" data-id=\"6e794ba\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Accredited methods<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"vamtam-has-theme-widget-styles elementor-element elementor-element-b94a17e elementor-widget elementor-widget-text-editor\" data-id=\"b94a17e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4>3.1 Carbon monoxide (CO) and carbon dioxide (CO<sub>2<\/sub>)<\/h4>\n<div class=\"news-table-wrap\"><table class=\"news-table\"><thead><tr><th>Subject<\/th><th>Measured parameters \/ method<\/th><th>Reference<\/th><\/tr><\/thead><tbody><tr><td>Workplace air<\/td><td>Gas concentration. Range: CO (2.4 &ndash; 187) mg\/m&sup3;. Electrochemical method.<\/td><td>IB-22, edition 4 of 03.08.2016<\/td><\/tr><tr><td>Workplace air<\/td><td>Carbon dioxide concentration. Range: (695 &ndash; 73,290) mg\/m&sup3;. Electrochemical method.<\/td><td>IB-129, edition 1 of 05.03.2020<\/td><\/tr><\/tbody><\/table><\/div>\n<p>Accreditation scope number<sup>A<\/sup>: <strong>AB 934<\/strong>.<br>MAC<sup>3<\/sup>: item 501 &mdash; Carbon monoxide &mdash; CAS 630-08-0 &mdash; MAC: 23 mg\/m&sup3; &mdash; short-term: 117 mg\/m&sup3;.<\/p>\n<h4>3.2 Nitric oxide (NO) and nitrogen dioxide (NO<sub>2<\/sub>)<\/h4>\n<div class=\"news-table-wrap\"><table class=\"news-table\"><thead><tr><th>Subject<\/th><th>Measured parameters \/ method<\/th><th>Reference<\/th><\/tr><\/thead><tbody><tr><td>Workplace air<\/td><td>Nitric oxide concentration \/ content. Range: (0.12 &ndash; 5.0) mg\/m&sup3;; (0.0010 &ndash; 0.045) mg per sample. Ion chromatography (IC).<\/td><td>OSHA Method 190<\/td><\/tr><tr><td>Workplace air<\/td><td>Nitrogen dioxide concentration \/ content. Range: (0.07 &ndash; 14.0) mg\/m&sup3;; (0.00063 &ndash; 0.0420) mg per sample. Ion chromatography (IC).<\/td><td>OSHA Method 182<\/td><\/tr><\/tbody><\/table><\/div>\n<p>Accreditation scope number<sup>A<\/sup>: <strong>AB 934<\/strong>.<br>MAC<sup>3<\/sup>: item 498 &mdash; Nitric oxide &mdash; CAS 10102-43-9 &mdash; MAC: 2.5 mg\/m&sup3;.<br>MAC<sup>3<\/sup>: item 195 &mdash; Nitrogen dioxide &mdash; CAS 10102-44-0 &mdash; MAC: 0.7 mg\/m&sup3; &mdash; short-term: 1.5 mg\/m&sup3;.<\/p>\n<h4>3.3 Formaldehyde<\/h4>\n<div class=\"news-table-wrap\"><table class=\"news-table\"><thead><tr><th>Subject<\/th><th>Measured parameters \/ method<\/th><th>Reference<\/th><\/tr><\/thead><tbody><tr><td>Workplace air<\/td><td>Formaldehyde concentration \/ content. Range: (0.0017 &ndash; 20) mg\/m&sup3;; (0.0001 &ndash; 0.1) mg per sample. HPLC with UV\/VIS spectrophotometric detection (HPLC-UV).<\/td><td>Podstawy i Metody Oceny \u015arodowiska Pracy 1999, no. 22, pp. 96&ndash;100<\/td><\/tr><\/tbody><\/table><\/div>\n<p>Accreditation scope number<sup>A<\/sup>: <strong>AB 934<\/strong>.<br>MAC<sup>3<\/sup>: item 248 &mdash; Formaldehyde &mdash; CAS 50-00-0 &mdash; MAC: 0.37 mg\/m&sup3; &mdash; short-term: 0.74 mg\/m&sup3; (skin).<\/p>\n<h4>3.4 Polycyclic aromatic hydrocarbons (PAH)<\/h4>\n<div class=\"news-table-wrap\"><table class=\"news-table\"><thead><tr><th>Subject<\/th><th>Measured parameters \/ method<\/th><th>Reference<\/th><\/tr><\/thead><tbody><tr><td>Workplace air<\/td><td>Concentration \/ content of polycyclic aromatic hydrocarbons. Ranges listed below. HPLC with fluorescence and UV\/VIS spectrophotometric detection (HPLC-FLD\/UV). Exposure indicator as the sum of products of concentrations and carcinogenic equivalency factors of 9 carcinogenic PAHs (calculated).<\/td><td>PN-Z-04240-5:2006 excluding clauses 1, 5.6, 5.7, 5.8 &mdash; IB-76, edition 3 of 15.07.2013<\/td><\/tr><\/tbody><\/table><\/div>\n<div class=\"news-table-wrap\"><table class=\"news-table\"><thead><tr><th>Compound<\/th><th>Concentration range [mg\/m&sup3;]<\/th><th>Content range [mg per sample]<\/th><\/tr><\/thead><tbody><tr><td>anthracene<\/td><td>0.00019 &ndash; 0.0038<\/td><td>0.000075 &ndash; 0.0015<\/td><\/tr><tr><td>benzo(a)anthracene<\/td><td>0.000015 &ndash; 0.0038<\/td><td>0.000006 &ndash; 0.0015<\/td><\/tr><tr><td>chrysene<\/td><td>0.00019 &ndash; 0.0038<\/td><td>0.000075 &ndash; 0.0015<\/td><\/tr><tr><td>benzo(b)fluoranthene<\/td><td>0.000015 &ndash; 0.0038<\/td><td>0.000006 &ndash; 0.0015<\/td><\/tr><tr><td>benzo(k)fluoranthene<\/td><td>0.000015 &ndash; 0.0038<\/td><td>0.000006 &ndash; 0.0015<\/td><\/tr><tr><td>benzo(a)pyrene<\/td><td>0.000015 &ndash; 0.0038<\/td><td>0.000006 &ndash; 0.0015<\/td><\/tr><tr><td>dibenzo(a,h)anthracene<\/td><td>0.000015 &ndash; 0.0038<\/td><td>0.000006 &ndash; 0.0015<\/td><\/tr><tr><td>benzo(g,h,i)perylene<\/td><td>0.000075 &ndash; 0.0038<\/td><td>0.000006 &ndash; 0.0015<\/td><\/tr><tr><td>indeno(1,2,3-c,d)pyrene<\/td><td>0.000015 &ndash; 0.0038<\/td><td>0.000006 &ndash; 0.0015<\/td><\/tr><\/tbody><\/table><\/div>\n<p>Accreditation scope number<sup>A<\/sup>: <strong>AB 934<\/strong>.<br>MAC<sup>3<\/sup>: item 503 &mdash; Polycyclic aromatic hydrocarbons (PAH) &mdash; as the sum of products of concentrations and carcinogenic equivalency factors of 9 carcinogenic PAHs &mdash; MAC: 0.002 mg\/m&sup3; (skin).<\/p>\n<p><em>It should be noted that the HPLC method used for formaldehyde determination allows simultaneous determination of acrolein (acrylaldehyde), which may also be present in engine exhaust.<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3e89d45 elementor-widget elementor-widget-heading\" data-id=\"3e89d45\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Footnotes<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"vamtam-has-theme-widget-styles elementor-element elementor-element-31b8d07 elementor-widget elementor-widget-text-editor\" data-id=\"31b8d07\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ol style=\"font-size:13px;color:#555;\"><li>Regulation of the Minister of Development, Labour and Technology of 18 February 2021 amending the regulation on maximum admissible concentrations and intensities of agents harmful to health in the working environment (Journal of Laws 2021, item 325).<\/li><li>Regulation of the Minister of Family, Labour and Social Policy of 12 June 2018 on maximum admissible concentrations and intensities of agents harmful to health in the working environment (Journal of Laws 2018, item 1286).<\/li><li>Source literature: M. Po\u015bniak et al., &bdquo;Diesel engine exhaust &mdash; a threat to workers&rsquo; health&rdquo;, Bezpiecze\u0144stwo Pracy 9\/2001; M. Po\u015bniak, &bdquo;Diesel engine exhaust &mdash; principles and methods of occupational exposure assessment&rdquo;, Medycyna Pracy 2003, 54(4); M. Oze-Oguzwaom, T. J. Smith, &bdquo;Diesel Exhaust Particles in the Work Environment and their Analysis&rdquo;, Industrial Health 2004, 42; S. Czerczak et al., &bdquo;Diesel engine exhaust &mdash; documentation of proposed occupational exposure values&rdquo;, Podstawy i Metody Oceny \u015arodowiska Pracy 2005, 3(45); &bdquo;Guidelines for health risk estimation for carcinogenic agents&rdquo;, ed. Czerczak S. et al. &mdash; &bdquo;Diesel engine exhaust&rdquo;, \u0141\u00f3d\u017a, IMP 1997; Monograph: &bdquo;Diesel engine exhaust &mdash; respirable fraction&rdquo;, CIOP-PIB, Warsaw 2010; Podstawy i Metody Oceny \u015arodowiska Pracy 2020, 4(106), pp. 143&ndash;162.<\/li><li>Regulation of the Minister of Health of 2 February 2011 on tests and measurements of agents harmful to health in the working environment (Journal of Laws 2011, no. 33, item 166).<\/li><li>See: <a href=\"\/en\/legally-regulated-areas\/\">Legally Regulated Areas<\/a> page.<\/li><\/ol>\n<p style=\"font-size:13px;color:#555;\"><sup>A<\/sup> Accreditation status and the current scope of accreditation can be verified on the PCA website (www.pca.gov.pl); our accreditation number AB 934 covers testing laboratories accredited against PN-EN ISO\/IEC 17025:2018-02.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-874ec6f elementor-widget elementor-widget-heading\" data-id=\"874ec6f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">We can help you plan Diesel-exhaust measurements under the new regulatory regime.<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"vamtam-has-theme-widget-styles elementor-element elementor-element-75a92d6 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"75a92d6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"\/en\/inquiry\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Request a quote<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Information on changes in the law, a brief overview of the issue, sampling and analytical options for the parameter, and additional recommendations for testing harmful workplace agents. Regulatory change Until 20 February 2023, the MAC value (NDS) for Diesel engine exhaust &mdash; respirable fraction &mdash; is 0.5 mg\/m&sup3;: No. Name and code MAC [mg\/m&sup3;] Short-term&#8230;<\/p>\n","protected":false},"author":5,"featured_media":990926,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seowing_meta_title":"Change to MAC Values for Diesel Engine Exhaust | OIKOS","_seowing_meta_description":"Change to the maximum allowable concentration (MAC) for diesel engine exhaust \u2014 new regulations, sampling and determination. OIKOS contractor notice.","_seowing_focus_keyword":"diesel engine exhaust MAC","_seowing_canonical_url":"","_seowing_robots":"","_seowing_robots_noindex":false,"_seowing_robots_nofollow":false,"_seowing_seo_score":0,"footnotes":""},"categories":[34],"tags":[],"class_list":["post-990932","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-regulations"],"_links":{"self":[{"href":"https:\/\/oikoslab.pl\/en\/wp-json\/wp\/v2\/posts\/990932","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oikoslab.pl\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/oikoslab.pl\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/oikoslab.pl\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/oikoslab.pl\/en\/wp-json\/wp\/v2\/comments?post=990932"}],"version-history":[{"count":3,"href":"https:\/\/oikoslab.pl\/en\/wp-json\/wp\/v2\/posts\/990932\/revisions"}],"predecessor-version":[{"id":991084,"href":"https:\/\/oikoslab.pl\/en\/wp-json\/wp\/v2\/posts\/990932\/revisions\/991084"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oikoslab.pl\/en\/wp-json\/wp\/v2\/media\/990926"}],"wp:attachment":[{"href":"https:\/\/oikoslab.pl\/en\/wp-json\/wp\/v2\/media?parent=990932"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oikoslab.pl\/en\/wp-json\/wp\/v2\/categories?post=990932"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oikoslab.pl\/en\/wp-json\/wp\/v2\/tags?post=990932"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}