{"id":229,"date":"2022-09-01T11:13:33","date_gmt":"2022-09-01T11:13:33","guid":{"rendered":"https:\/\/hiilipuu-prod-22.atm.helsinki.fi\/hiilipuu\/?p=229"},"modified":"2022-09-01T11:13:34","modified_gmt":"2022-09-01T11:13:34","slug":"co2-concentration","status":"publish","type":"post","link":"https:\/\/www.hiilipuu.fi\/index.php\/en\/2022\/09\/01\/co2-concentration\/","title":{"rendered":"CO2 concentration"},"content":{"rendered":"\n<p>In the Northern Hemisphere, the CO<sub>2<\/sub>&nbsp;rises in the winter and declines in the summer, mainly as a response to the seasonal activity of forests, other land vegetation and algae which all absorb atmospheric CO<sub>2<\/sub>&nbsp;both in oceans and in terrestrial biospheres and release it by heterotrophic respiration. In addition, house heating in winter contributes to the seasonal cycle of CO<sub>2<\/sub>&nbsp;concentration.<\/p>\n\n\n\n<p>CO<sub>2<\/sub>&nbsp;concentration varies slightly during the day, where it&#8217;s the lowest during the daytime due to mixing of the atmospheric boundary layer and photosynthesis. During the calm moments at night, CO<sub>2<\/sub>&nbsp;forms a vertical profile with highest concentration near the ground that acts as a intense CO<sub>2<\/sub>&nbsp;source.<\/p>\n\n\n\n<p>The particles in the animation reflect carbon dioxide (CO<sub>2<\/sub>) molecules that move according to the sink strength, <a href=\"http:\/\/www.carbontree.fi\/articles\/photosynthesis\">photosynthesis<\/a> and <a href=\"http:\/\/www.carbontree.fi\/articles\/plant-respiration\">respiration<\/a>, of the tree at each moment. The current atmospheric CO<sub>2<\/sub>\u00a0concentration is around 385 ppm (0.0385 %). The concentration increases annually by approximately 2 ppm.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"389\" height=\"177\" src=\"https:\/\/hiilipuu-prod-22.atm.helsinki.fi\/hiilipuu\/wp-content\/uploads\/2022\/09\/CO2_kehitys_en.jpg\" alt=\"\" class=\"wp-image-230\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>In the Northern Hemisphere, the CO2&nbsp;rises in the winter and declines in the summer, mainly as a response to the seasonal activity of forests, other land vegetation and algae which all absorb atmospheric CO2&nbsp;both in oceans and in terrestrial biospheres and release it by heterotrophic respiration. In addition, house heating in winter contributes to the&hellip;&nbsp;<a href=\"https:\/\/www.hiilipuu.fi\/index.php\/en\/2022\/09\/01\/co2-concentration\/\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">CO2 concentration<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[29],"tags":[],"class_list":["post-229","post","type-post","status-publish","format-standard","hentry","category-articles"],"_links":{"self":[{"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/posts\/229","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/comments?post=229"}],"version-history":[{"count":1,"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/posts\/229\/revisions"}],"predecessor-version":[{"id":231,"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/posts\/229\/revisions\/231"}],"wp:attachment":[{"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/media?parent=229"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/categories?post=229"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/tags?post=229"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}