{"id":7928,"date":"2019-04-24T17:05:31","date_gmt":"2019-04-24T09:05:31","guid":{"rendered":"https:\/\/smartairfilters.com\/?p=7928"},"modified":"2020-07-15T11:58:16","modified_gmt":"2020-07-15T03:58:16","slug":"is-china-to-blame-for-seouls-air-pollution-supplemental-data","status":"publish","type":"post","link":"https:\/\/smartairfilters.com\/en\/blog\/is-china-to-blame-for-seouls-air-pollution-supplemental-data\/","title":{"rendered":"Is China to Blame for Seoul\u2019s Air Pollution? \u2013 Supplemental Data"},"content":{"rendered":"<p><em>This article includes supplemental data for the main article \u201c<\/em><em><a href=\"https:\/\/smartairfilters.com\/en\/blog\/china-blame-seouls-air-pollution\/\">Is China to blame for Seoul&#8217;s air pollution<\/a>?<\/em><em>\u201d<\/em><\/p>\n<p>This supplemental data will show how high and low wind speeds affect the PM2.5 levels. Ultimately, this supplemental article draws the same conclusion as the main article.<\/p>\n<p>&nbsp;<\/p>\n<h3 style=\"text-align: center\">Does Wind Speed Affect PM2.5?<\/h3>\n<p>What if particulate matter can only be transported at high speeds? In order to test if wind speed affects PM2.5, I repeated the analysis for PM2.5 data at wind speeds below average and above average.<\/p>\n<p>&nbsp;<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" src=\"\/wordpress\/wp-content\/uploads\/2019\/04\/supp-1.png\" alt=\"China wind affects seoul pollution\" width=\"598\" height=\"684\" class=\"aligncenter wp-image-7929\" srcset=\"https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/2019\/04\/supp-1.png 709w, https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/2019\/04\/supp-1-262x300.png 262w\" sizes=\"(max-width: 598px) 100vw, 598px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>The data shows that lower wind speeds in Seoul almost always correlated with lower PM2.5 levels, regardless of the wind direction.<\/p>\n<p>&nbsp;<\/p>\n<p>However, this also shows that air pollution was significant even without strong winds blowing PM2.5 from China. This means that there are PM2.5 sources within Seoul as well.<\/p>\n<p>&nbsp;<\/p>\n<p><img decoding=\"async\" src=\"\/wordpress\/wp-content\/uploads\/2019\/04\/supp-2.png\" alt=\"How wind affects Seoul PM2.5\" width=\"599\" height=\"676\" class=\"aligncenter wp-image-7930\" srcset=\"https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/2019\/04\/supp-2.png 716w, https:\/\/smartairfilters.com\/wordpress\/wp-content\/uploads\/2019\/04\/supp-2-266x300.png 266w\" sizes=\"(max-width: 599px) 100vw, 599px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>When the wind was blowing at higher speeds from the direction of China, the PM2.5 level was about 9% higher than average. However, when the wind was blowing at higher speeds from the East and East-South-East directions, the PM2.5 level was about 23% higher. This agrees with the findings in the main article\u2014that some pollution comes from China, but the majority still originates in South Korea.<\/p>","protected":false},"excerpt":{"rendered":"<p>This article includes supplemental data for the main article \u201cIs China to blame for Seoul&#8217;s air pollution?\u201d This supplemental data will show how high and low wind speeds affect the PM2.5 levels. Ultimately, this supplemental article draws the same conclusion as the main article. &nbsp; Does Wind Speed Affect PM2.5? &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Is China to Blame for Seoul\u2019s Air Pollution? \u2013 Supplemental Data\" class=\"read-more button\" href=\"https:\/\/smartairfilters.com\/en\/blog\/is-china-to-blame-for-seouls-air-pollution-supplemental-data\/#more-7928\" aria-label=\"Read more about Is China to Blame for Seoul\u2019s Air Pollution? \u2013 Supplemental Data\">Read more<\/a><\/p>\n","protected":false},"author":4300,"featured_media":7937,"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":[17,126,261],"tags":[272,377,306,374,376,341],"class_list":["post-7928","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-air-pollution","category-smart-air-news","category-weather","tag-air-pollution","tag-blame","tag-china","tag-korea","tag-seoul","tag-supplemental-data","resize-featured-image"],"acf":[],"_links":{"self":[{"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/posts\/7928","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\/4300"}],"replies":[{"embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/comments?post=7928"}],"version-history":[{"count":5,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/posts\/7928\/revisions"}],"predecessor-version":[{"id":11578,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/posts\/7928\/revisions\/11578"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/media\/7937"}],"wp:attachment":[{"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/media?parent=7928"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/categories?post=7928"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/smartairfilters.com\/en\/wp-json\/wp\/v2\/tags?post=7928"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}