{"id":21480,"date":"2022-03-23T21:25:54","date_gmt":"2022-03-23T13:25:54","guid":{"rendered":"https:\/\/smartairfilters.com\/?p=21480"},"modified":"2022-03-24T13:28:53","modified_gmt":"2022-03-24T05:28:53","slug":"mumbai-air-quality-exceeds-8-times-who-limit-in-2021","status":"publish","type":"post","link":"https:\/\/smartairfilters.com\/en\/blog\/mumbai-air-quality-exceeds-8-times-who-limit-in-2021\/","title":{"rendered":"Mumbai Air Quality Exceeds 8 Times WHO Limit in 2021"},"content":{"rendered":"<p>Mumbai air quality improved 2% in 2021, compared to the previous year. These <a href=\"https:\/\/indianexpress.com\/article\/cities\/mumbai\/mumbai-diwali-aqi-pollution-7607519\/\">higher air pollution levels<\/a> push Mumbai\u2019s annual PM2.5 average to more than eight times the <a href=\"https:\/\/www.who.int\/news\/item\/22-09-2021-new-who-global-air-quality-guidelines-aim-to-save-millions-of-lives-from-air-pollution\">World Health Organization\u2019s<\/a> <a href=\"https:\/\/smartairfilters.com\/en\/blog\/who-updates-air-quality-pollution-guidelines\/\">annual limit<\/a>&nbsp;of 5 \u00b5g\/m<sup>3<\/sup>. Let&#8217;s dive into what trends we see throughout the year with Mumbai air quality and how Mumbai compares with the rest of India.<\/p>\n\n\n\n<h2 class=\"has-text-align-center wp-block-heading\">Mumbai Air Quality: 2020 vs 2021<\/h2>\n\n\n\n<p>Mumbai&#8217;s 2021 PM2.5 air pollution levels remained relatively unchanged compared to 2020. With the 2% improvement, Mumbai still averaged 43 micrograms of PM2.5 air pollution in 2021. <\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh6.googleusercontent.com\/X1JeWRpuLMZ4XkWREu1kSwmyGl9KXs66yA9jIbJdIZuxSyk9NbQ8n_H4SAemJVLJhvI7dLQQUYhNid926DqVfmD1H_TDtn-1M380N4N7txt9yf1xhskg5fyq-K8itojiD2HgZ2MRxpd5tenJT6w\" alt=\"Mumbai air quality: 2021 v 2020\" \/><\/figure>\n\n\n\n<h2 class=\"has-text-align-center wp-block-heading\">Mumbai Monthly Air Quality<\/h2>\n\n\n\n<p>Mumbai\u2019s PM2.5 levels started 2021 at <a href=\"https:\/\/smartairfilters.com\/en\/blog\/mumbais-air-quality-worsened-in-2020\/\">higher levels than in 2020<\/a>. Breaking down the data by month, air quality in 2021 tracked 2020 closely. As usual, the air quality during the winter months was much worse compared to the summer months in Mumbai.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh3.googleusercontent.com\/iAHKq1KSEEENypjlYna3-iYP6VzTTcMNptG964ieOEJfo4xmUOXSagadrZOSSTDOa82GVPihcKIgI0Nklij6rDSd_erbcF5DzN5hP9h5ihAQrJ_dAusAzUaSSNNEePbMeMRC0GButQyqxVtt4tU\" alt=\"\" \/><\/figure>\n\n\n\n<h3 class=\"has-text-align-center wp-block-heading\">Trends in Mumbai\u2019s Air Quality<\/h3>\n\n\n\n<p>In 2021 Mumbai saw some improvement in air quality during the <a href=\"https:\/\/smartairfilters.com\/en\/blog\/covid-19-slashes-pm2-5-in-indias-6-biggest-cities\/\">COVID-19 lockdown<\/a>. The months of July and August saw an improvement in PM2.5 levels mainly due to the monsoon season in Mumbai. The data shows that wind blows pollution away and lowers overall air pollution levels. But thereafter, Mumbai\u2019s pollution levels start <a href=\"https:\/\/smartairfilters.com\/en\/blog\/why-air-quality-pm25-india-worse-winter\/\">peaking during winter<\/a> with PM2.5 typically beginning to <a href=\"https:\/\/smartairfilters.com\/en\/blog\/india-winter-more-polluted-summer-pm25\/\">rise to start in October<\/a> and remaining high until March of the next year.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/lh3.googleusercontent.com\/Kg9ZqC63VmvNnXthwpNgdfpY4w9fr5VcZzIeKTrBGzA-5CFAkAawyN4NuuPG3s3rsjHNfTTUY4sZkTFXimt0yFeC5JIO0Tmn24Pv376Zk7uWc9zYCAx_rK8X8euj5qS4mdxoM8b8XTLarD4E1dw\" alt=\"Mumbai air quality monthly trends\" width=\"816\" height=\"458\" \/><\/figure><\/div>\n\n\n\n<h2 class=\"has-text-align-center wp-block-heading\">Mumbai\u2019s Air Quality Compared to Other Cities in India<\/h2>\n\n\n\n<p>Mumbai\u2019s air quality is now far worse than <a href=\"https:\/\/smartairfilters.com\/en\/blog\/did-bangalore-air-quality-get-better-in-2021\/\">Bangalore<\/a> and Chennai&#8217;s after this year&#8217;s worsening of PM2.5.&nbsp; The marginal improvement this year means Mumbai is still third in terms of the worst air pollution among all of <a href=\"https:\/\/smartairfilters.com\/en\/blog\/did-india-air-pollution-improve-in-2021\/\">India\u2019s major cities<\/a>. Delhi \u2014 by far the <a href=\"https:\/\/smartairfilters.com\/en\/blog\/did-delhi-air-quality-get-better-in-2021\/\">most polluted city in India<\/a> \u2014 still has pollution levels over two times higher than Mumbai.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><img decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/wmza0YnDorghXrIdcIyfbjMV-4eq6R0ZA5DG21oXiDq_4qi6i4552i7gFzdkU_JurTI0D_pBWiXEgS2S6PJbR92gzGiAuupk01gXxqFdtwUKlL0iIZtiiBBWxfAGni2-D8d68Yh-RiIro1AG3_k\" alt=\"\" width=\"741\" height=\"416\" \/><\/figure><\/div>\n\n\n\n<p>The analysis is based on <a href=\"https:\/\/www.quora.com\/What-is-the-difference-between-PM2-5-and-PM10-with-respect-to-the-atmospheric-pollutants\/answer\/Thomas-Talhelm\">PM2.5 air pollution<\/a>, particles smaller than 2.5 microns in diameter. These particles can penetrate deep into the lungs and even enter the bloodstream. Studies have found that PM2.5 <a href=\"https:\/\/twitter.com\/SmartAirFilters\/status\/1065696348144455680\">raises blood pressure<\/a>, <a href=\"https:\/\/smartairfilters.com\/en\/blog\/35-college-students-purifier-health-effects\/\">inflammation<\/a>, and <a href=\"https:\/\/smartairfilters.com\/en\/blog\/smogdoesntkilllikeyouthinkitdoes\/\">rates of heart attacks and strokes<\/a>.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh6.googleusercontent.com\/o4Js8EbhTDqcF1J-J1-2vsy2nSGm2hOJZ6vo3e08dn-G7httiX_lqrUryPcrXxeKgFVmIZaGkjy2roncMErNas4rsYmOx8L20LXoKDJcD7yTe7Ui4kDPDXxZWOJCLZ0nGIOlRb3d-rMesjEtCos\" alt=\"\" \/><\/figure><\/div>\n\n\n\n<p>The data came from the US Consulate in Mumbai. It is open for researchers, although it does have its limitations. The data comes from only one pollution sensor in the city, which means a risk of the data not being representative of the whole of Mumbai. It&#8217;s highly possible that pollution levels vary between Mumbai&#8217;s different neighborhoods. If this was the case, then pollution levels in different neighborhoods could have different pollution levels.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><img decoding=\"async\" src=\"https:\/\/lh5.googleusercontent.com\/gyHHMYSPQsIGzK8-jc9ielb2GOe1ucGcu0lCHwB671QVUglrBABwhQQm0EZWzP-2-4-9XirpgdUnub5gJt0ogsdwY5Zxzy_klVd-EARk96RHwDbYdU1UWjpcbouUb3A5i2cBdMkFJmNbod70o6Y\" alt=\"Mumbai air quality\" width=\"736\" height=\"413\" \/><\/figure><\/div>\n\n\n\n<p><strong>Protect yourself: <\/strong><\/p>\n\n\n\n<p>Despite the harms of PM2.5, studies have found that <a href=\"https:\/\/qr.ae\/TUnNmi\">wearing masks prevents physiological harm to the body<\/a>, and placebo-controlled studies of air purifiers have found that removing particulate in the home has <a href=\"https:\/\/smartairfilters.com\/en\/blog\/35-college-students-purifier-health-effects\/\">positive effects on blood pressure, inflammation, and immune response<\/a>.<\/p>\n\n\n\n<p>Smart Air provides <a href=\"https:\/\/smartairfilters.com\/data\">empirically backed<\/a>, <a href=\"https:\/\/smartairfilters.com\/shop\">no-nonsense purifiers and masks<\/a> to help air-breathers protect themselves and their family. Smart Air is a certified B Corp founded to publicize the simple science behind air purifiers and masks, thereby lowering the cost of breathing clean air.<\/p>\n\n\n\n<p><a href=\"https:\/\/smartairfilters.com\/shop\">Shop Smart Air\u2019s Lineup of Cost-effective, Data-backed Air Purifiers<\/a><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/2020\/10\/sqair-clean-air-you-can-trust-square.jpg\" alt=\"\" class=\"wp-image-16830\" width=\"539\" height=\"539\" srcset=\"https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/2020\/10\/sqair-clean-air-you-can-trust-square.jpg 800w, https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/2020\/10\/sqair-clean-air-you-can-trust-square-600x600.jpg 600w, https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/2020\/10\/sqair-clean-air-you-can-trust-square-300x300.jpg 300w, https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/2020\/10\/sqair-clean-air-you-can-trust-square-768x768.jpg 768w, https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/2020\/10\/sqair-clean-air-you-can-trust-square-100x100.jpg 100w\" sizes=\"(max-width: 539px) 100vw, 539px\" \/><figcaption>Smart Air&#8217;s award-winning <a href=\"https:\/\/smartairfilters.com\/en\/product\/sqair-air-purifier\/\">Sqair bedroom air purifier<\/a><\/figcaption><\/figure><\/div>","protected":false},"excerpt":{"rendered":"<p>Mumbai air quality improved 2% in 2021, compared to the previous year. These higher air pollution levels push Mumbai\u2019s annual PM2.5 average to more than eight times the World Health Organization\u2019s annual limit&nbsp;of 5 \u00b5g\/m3. Let&#8217;s dive into what trends we see throughout the year with Mumbai air quality and &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Mumbai Air Quality Exceeds 8 Times WHO Limit in 2021\" class=\"read-more button\" href=\"https:\/\/smartairfilters.com\/en\/blog\/mumbai-air-quality-exceeds-8-times-who-limit-in-2021\/#more-21480\" aria-label=\"Read more about Mumbai Air Quality Exceeds 8 Times WHO Limit in 2021\">Read more<\/a><\/p>\n","protected":false},"author":2882,"featured_media":11210,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[452,386,257],"tags":[272,278,277,74],"class_list":["post-21480","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-air-quality","category-india","category-pm2-5","tag-air-pollution","tag-air-quality","tag-mumbai","tag-pm2-5","resize-featured-image"],"acf":[],"_links":{"self":[{"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/posts\/21480","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/users\/2882"}],"replies":[{"embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/comments?post=21480"}],"version-history":[{"count":6,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/posts\/21480\/revisions"}],"predecessor-version":[{"id":21522,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/posts\/21480\/revisions\/21522"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/media\/11210"}],"wp:attachment":[{"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/media?parent=21480"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/categories?post=21480"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/tags?post=21480"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}