{"id":241,"date":"2015-11-14T04:15:48","date_gmt":"2015-11-13T20:15:48","guid":{"rendered":"http:\/\/smartairfilters.com\/cn\/?p=241"},"modified":"2020-07-15T11:55:29","modified_gmt":"2020-07-15T03:55:29","slug":"winter-air-is-coming","status":"publish","type":"post","link":"https:\/\/smartairfilters.com\/en\/blog\/winter-air-is-coming\/","title":{"rendered":"Winter (Air) Is Coming"},"content":{"rendered":"<p>Another year, another Beijing winter. As winter arrives to Beijing, I got to wondering: how much worse is winter air?<\/p>\n<p>To get to the bottom of it, I analyzed the last seven years of US Embassy PM2.5 data. I found that the capital\u2019s air has averaged 111 micrograms in the winter versus 92 micrograms for the rest of the year.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter wp-image-244 size-full\" src=\"http:\/\/smartairfilters.com\/cn\/wp-content\/uploads\/sites\/3\/2016\/06\/a1.png\" alt=\"a1\" width=\"458\" height=\"398\" \/><\/p>\n<p>Just how bad is that? The WHO 24-hour PM2.5 limit is <a href=\"http:\/\/www.who.int\/mediacentre\/factsheets\/fs313\/en\/\">25 micrograms<\/a>. That means Beijing\u2019s summers average three times the limit, and winters average over four times limit.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-245 size-full\" src=\"http:\/\/smartairfilters.com\/cn\/wp-content\/uploads\/sites\/3\/2016\/06\/b1.png\" alt=\"b1\" width=\"424\" height=\"376\" \/><\/p>\n<p>Breathe safe this winter!<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Another year, another Beijing winter. As winter arrives to Beijing, I got to wondering: how much worse is winter air? To get to the bottom of it, I analyzed the last seven years of US Embassy PM2.5 data. I found that the capital\u2019s air has averaged 111 micrograms in the &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Winter (Air) Is Coming\" class=\"read-more button\" href=\"https:\/\/smartairfilters.com\/en\/blog\/winter-air-is-coming\/#more-241\" aria-label=\"Read more about Winter (Air) Is Coming\">Read more<\/a><\/p>\n","protected":false},"author":1035,"featured_media":3510,"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":[17,261],"tags":[74],"class_list":["post-241","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-air-pollution","category-weather","tag-pm2-5","resize-featured-image"],"acf":[],"_links":{"self":[{"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/posts\/241","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\/1035"}],"replies":[{"embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/comments?post=241"}],"version-history":[{"count":3,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/posts\/241\/revisions"}],"predecessor-version":[{"id":11448,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/posts\/241\/revisions\/11448"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/media\/3510"}],"wp:attachment":[{"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/media?parent=241"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/categories?post=241"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/tags?post=241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}