{"id":592,"date":"2014-01-31T13:54:09","date_gmt":"2014-01-31T05:54:09","guid":{"rendered":"http:\/\/smartairfilters.com\/cn\/?p=592"},"modified":"2020-07-15T11:55:55","modified_gmt":"2020-07-15T03:55:55","slug":"do-fireworks-pollute-indoor-air","status":"publish","type":"post","link":"https:\/\/smartairfilters.com\/en\/blog\/do-fireworks-pollute-indoor-air\/","title":{"rendered":"Do Chinese New Year Fireworks Pollute Indoor Air?"},"content":{"rendered":"

I\u2019ve posted data before<\/a> showing that outdoor air quality is strongly correlated\u00a0with indoor particle counts (r<\/em>\u00a0= .71), but Chinese New Year gives nerds like me a great chance to see what happens when we get a momentary shock to air quality.<\/p>\n

The media made a big deal about<\/a> people cutting back on fireworks this year out of a concern for air quality, and that may be true, but you can still see a strong spike in PM2.5 as Beijingers rang in the year of the horse:<\/p>\n

 <\/p>\n

\"Fireworks<\/p>\n

 <\/p>\n

Not all that surprising. But what\u2019s more interesting is that you can see a corresponding increase in the particle counts in my collaborator Gus\u2019s bedroom (blue line):<\/p>\n

 <\/p>\n

\"Chinese<\/p>\n

 <\/p>\n

These indoor counts are without a purifier running, so they demonstrate how quickly outdoor air pollution can find its way indoors and how variable indoor air quality can be in a single room over time. Simply put: the worse the air is outside, the worse it is inside.<\/p>\n

Yet the glass half empty can also be half full. When outdoor particulate goes down, indoor particulate can go down in a hurry. Check out what happened after the firework apocalypse ended:<\/p>\n

 <\/p>\n

\"Spring<\/p>\n

 <\/p>\n

A note for fellow nerds: The indoor particle counts are not precisely on the hours, which might exaggerate the apparent time lag between indoor and outdoor counts.<\/p>","protected":false},"excerpt":{"rendered":"

I\u2019ve posted data before showing that outdoor air quality is strongly correlated\u00a0with indoor particle counts (r\u00a0= .71), but Chinese New Year gives nerds like me a great chance to see what happens when we get a momentary shock to air quality. The media made a big deal about people cutting … <\/p>\n

Read more<\/a><\/p>\n","protected":false},"author":1035,"featured_media":7526,"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":[17,260,264,261],"tags":[278,121,340,73,74],"class_list":["post-592","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-air-pollution","category-air-pollution-health-effects","category-indoor-air","category-weather","tag-air-quality","tag-chinese-new-year","tag-fireworks","tag-pm-0-5","tag-pm2-5","resize-featured-image"],"acf":[],"_links":{"self":[{"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/posts\/592","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=592"}],"version-history":[{"count":6,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/posts\/592\/revisions"}],"predecessor-version":[{"id":11462,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/posts\/592\/revisions\/11462"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/media\/7526"}],"wp:attachment":[{"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/media?parent=592"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/categories?post=592"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/tags?post=592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}