{"id":3814,"date":"2016-10-14T10:11:24","date_gmt":"2016-10-14T02:11:24","guid":{"rendered":"http:\/\/smartairfilters.com\/?p=3814"},"modified":"2020-07-15T11:56:40","modified_gmt":"2020-07-15T03:56:40","slug":"winter-is-coming","status":"publish","type":"post","link":"https:\/\/smartairfilters.com\/en\/blog\/winter-is-coming\/","title":{"rendered":"Winter Is Coming"},"content":{"rendered":"

Another year, another winter. As winter arrives in Beijing and soon in Shanghai, I got to wondering: how much worse is winter air in Beijing?<\/p>\n

To get to the bottom of it, I analyzed the last eight years of US Embassy PM2.5 data for Beijing and Shanghai. I found that the capital’s air has averaged 111 micrograms in the winter versus 92 micrograms for the rest of the year. Shanghai was a little better at 65 micrograms in winter versus 40 micrograms in summer.<\/p>\n

 <\/p>\n

\"Beijing \"Shanghai<\/p>\n

Just how bad is that? The WHO 24-hour PM2.5 limit is 25 micrograms<\/a> (the year PM2.5 limit is just 10 micrograms!). That means Beijing’s summers average three times the 24-hour limit, and winters average over four times the limit.<\/p>\n

\"China<\/p>\n

Don’t live in Beijing or Shanghai? Then don’t get complacent! This trend is the same across China:<\/p>\n

Breathe safe this winter!<\/p>","protected":false},"excerpt":{"rendered":"

Another year, another winter. As winter arrives in Beijing and soon in Shanghai, I got to wondering: how much worse is winter air in Beijing? To get to the bottom of it, I analyzed the last eight years of US Embassy PM2.5 data for Beijing and Shanghai. I found that … <\/p>\n

Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":3815,"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":[],"class_list":["post-3814","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-air-pollution","category-weather","resize-featured-image"],"acf":[],"_links":{"self":[{"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/posts\/3814","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/comments?post=3814"}],"version-history":[{"count":6,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/posts\/3814\/revisions"}],"predecessor-version":[{"id":11491,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/posts\/3814\/revisions\/11491"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/media\/3815"}],"wp:attachment":[{"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/media?parent=3814"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/categories?post=3814"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/tags?post=3814"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}