{"id":348,"date":"2025-07-18T11:47:18","date_gmt":"2025-07-18T11:47:18","guid":{"rendered":"https:\/\/airekart.com\/blog\/?p=348"},"modified":"2025-07-18T12:20:52","modified_gmt":"2025-07-18T12:20:52","slug":"how-is-pm2-5-measured","status":"publish","type":"post","link":"https:\/\/airekart.com\/blog\/how-is-pm2-5-measured\/","title":{"rendered":"How is PM2.5 measured?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"348\" class=\"elementor elementor-348\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3a454d1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3a454d1\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-ee45da0\" data-id=\"ee45da0\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0df00a1 elementor-widget elementor-widget-text-editor\" data-id=\"0df00a1\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"margin: 0px 0px 30px;line-height: 1.4;color: #525252;text-align: left;font-family: Gilroy, sans-serif;font-size: 18px\">Even though our air should be clean in order for us to enjoy all its benefits, unfortunately, its pollution is rapidly increasing, particularly in the cities. Often we can detect such dangerous compounds as carbon monoxide, sulfur oxides, nitrogen oxides, hydrocarbons, and particulate matter (PM).<span style=\"font-weight: bolder\">\u00a0PM2.5 measurement<\/span>\u00a0<span style=\"font-weight: bolder\">is especially important when it comes to air quality. But what is it, and how do we<\/span>\u00a0measure it?<\/p><p style=\"margin: 0px 0px 30px;line-height: 1.4;color: #525252;text-align: left;font-family: Gilroy, sans-serif;font-size: 18px\"><span style=\"font-weight: bolder\">Table of Contents<\/span><\/p><ul style=\"padding: 0px;margin: 0px 0px 30px 30px;list-style-type: none;color: #525252;font-family: Gilroy, sans-serif;font-size: 18px;text-align: start;background-color: #ffffff\"><li style=\"margin: 0px 0px 10px;padding: 0px 0px 0px 20px;position: relative\"><a style=\"color: #525252;margin: 0px\" href=\"https:\/\/airly.org\/en\/how-is-pm2-5-measured\/#what-is-pm25\" target=\"_blank\" rel=\"noopener\">What is PM2.5?<\/a><\/li><li style=\"margin: 0px 0px 10px;padding: 0px 0px 0px 20px;position: relative\"><a style=\"color: #525252;margin: 0px\" href=\"https:\/\/airly.org\/en\/how-is-pm2-5-measured\/#how-to-measure-pm25\" target=\"_blank\" rel=\"noopener\">How to measure PM2.5?<\/a><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-76e40ba elementor-widget elementor-widget-image\" data-id=\"76e40ba\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"534\" src=\"https:\/\/airekart.com\/blog\/wp-content\/uploads\/2025\/07\/alexei-scutari-bRWukOnZmc8-unsplash-1024x683-1.jpg\" class=\"attachment-large size-large wp-image-284\" alt=\"\" srcset=\"https:\/\/airekart.com\/blog\/wp-content\/uploads\/2025\/07\/alexei-scutari-bRWukOnZmc8-unsplash-1024x683-1.jpg 1024w, https:\/\/airekart.com\/blog\/wp-content\/uploads\/2025\/07\/alexei-scutari-bRWukOnZmc8-unsplash-1024x683-1-300x200.jpg 300w, https:\/\/airekart.com\/blog\/wp-content\/uploads\/2025\/07\/alexei-scutari-bRWukOnZmc8-unsplash-1024x683-1-768x512.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6e190f2 elementor-widget elementor-widget-text-editor\" data-id=\"6e190f2\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"what-is-pm25\" style=\"margin: 0px 0px 30px;font-size: 32px;text-align: left;color: #525252;font-family: Gilroy, sans-serif\">What is PM2.5?<\/h2><p style=\"margin: 0px 0px 30px;line-height: 1.4;color: #525252;text-align: left;font-family: Gilroy, sans-serif;font-size: 18px\">Before we learn\u00a0<span style=\"font-weight: bolder\">how to measure PM2.5<\/span>, we should learn more about this compound. PM2.5 describes particulate matter, which has a diameter of fewer than 2.5 microns. That means such particles are almost 30 times smaller than the thickness of human hair. Even though PM10 has a bigger particle size and is much more visible, PM2.5, because of its size, can enter human lungs and even the bloodstream and cause an array of adverse health conditions. On top of that, this chemical contains plenty of toxic substances and can be transported long distances. PM2.5 is produced mainly by combustion sources, such as vehicle exhaust, power plants, and wildfires.<\/p><div>\u00a0<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2ad6157 elementor-widget elementor-widget-image\" data-id=\"2ad6157\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"432\" height=\"287\" src=\"https:\/\/airekart.com\/blog\/wp-content\/uploads\/2025\/07\/Pm2.5-hazy-wildfire-smoke-smog.jpg\" class=\"attachment-large size-large wp-image-350\" alt=\"\" srcset=\"https:\/\/airekart.com\/blog\/wp-content\/uploads\/2025\/07\/Pm2.5-hazy-wildfire-smoke-smog.jpg 432w, https:\/\/airekart.com\/blog\/wp-content\/uploads\/2025\/07\/Pm2.5-hazy-wildfire-smoke-smog-300x199.jpg 300w\" sizes=\"(max-width: 432px) 100vw, 432px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8048525 elementor-widget elementor-widget-text-editor\" data-id=\"8048525\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"how-to-measure-pm25\" style=\"margin: 0px 0px 30px;font-size: 32px;text-align: left;color: #525252;font-family: Gilroy, sans-serif\">How to measure PM2.5?<\/h2><p style=\"margin: 0px 0px 30px;line-height: 1.4;color: #525252;text-align: left;font-family: Gilroy, sans-serif;font-size: 18px\"><span style=\"font-weight: bolder\">So how is PM2.5 measured<\/span>? The amount of this compound is usually monitored with an aerosol sampler or a PM2.5 monitor. Both devices work similarly, as they draw in the air inside and then calculate the concentration of PM2.5 found on a filter. The results are conveyed as a microgram per cubic meter of air (\u03bcg\/m3). The World Health Organization sets acceptable PM2.5 levels at 10 \u00b5g\/m\u00b3 annually and at 25 \u00b5g\/m\u00b3 in the 24-hour window.<\/p><p style=\"margin: 0px 0px 30px;line-height: 1.4;color: #525252;text-align: left;font-family: Gilroy, sans-serif;font-size: 18px\"><span style=\"font-weight: bolder\">But what does PM2.5 measure?<\/span>\u00a0The composition of this compound is quite complex, and it consists of both solid and liquid particles. However, the main ingredients often include organic matter, nitrate, sulfate, ammonium salt, carbon as well as some metal compounds. The majority of the chemicals on this list are dangerous to human health.<\/p><p style=\"margin: 0px 0px 30px;line-height: 1.4;color: #525252;text-align: left;font-family: Gilroy, sans-serif;font-size: 18px\">Of course,\u00a0<span style=\"font-weight: bolder\">PM2.5 measurements<\/span>\u00a0<span style=\"font-weight: bolder\">can be done both indoors and outdoors, and you should match the type of device to your needs.<\/span>\u00a0Whenever the levels of 2.5PM get too high, make sure to stay home or at least wear a protective mask on your face. Indoors, you can also use air purifiers.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Even though our air should be clean in order for us to enjoy all its benefits, unfortunately, its pollution is rapidly increasing, particularly in the cities. Often we can detect such dangerous compounds as carbon monoxide, sulfur oxides, nitrogen oxides, hydrocarbons, and particulate matter (PM).\u00a0PM2.5 measurement\u00a0is especially important when it comes to air quality. But [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-348","post","type-post","status-publish","format-standard","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/airekart.com\/blog\/wp-json\/wp\/v2\/posts\/348","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/airekart.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/airekart.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/airekart.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/airekart.com\/blog\/wp-json\/wp\/v2\/comments?post=348"}],"version-history":[{"count":7,"href":"https:\/\/airekart.com\/blog\/wp-json\/wp\/v2\/posts\/348\/revisions"}],"predecessor-version":[{"id":357,"href":"https:\/\/airekart.com\/blog\/wp-json\/wp\/v2\/posts\/348\/revisions\/357"}],"wp:attachment":[{"href":"https:\/\/airekart.com\/blog\/wp-json\/wp\/v2\/media?parent=348"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/airekart.com\/blog\/wp-json\/wp\/v2\/categories?post=348"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/airekart.com\/blog\/wp-json\/wp\/v2\/tags?post=348"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}