{"id":2776,"date":"2024-11-21T21:00:16","date_gmt":"2024-11-21T13:00:16","guid":{"rendered":"https:\/\/changjinyuan.com\/?p=2776"},"modified":"2024-12-28T22:54:35","modified_gmt":"2024-12-28T14:54:35","slug":"zheng-x-guo-b-he-jing-chen-s-x-2021-effects-of-corona-virus-disease-19-control-measures-on-air-quality-in-north-china-environmetrics-vol-32-no-e2673","status":"publish","type":"post","link":"https:\/\/changjinyuan.com\/index.php\/en\/publications-en\/publications-all-en\/2776\/","title":{"rendered":"Zheng, X., Guo, B., He, J., &#038; Chen, S. X. (2021). Effects of corona virus disease\u201019 control measures on air quality in North China. Environmetrics, 32, e2673."},"content":{"rendered":"<p>Corona virus disease-19 (COVID-19) has substantially reduced human activities and the associated anthropogenic emissions. This study quantifies the effects of COVID-19 control measures on six major air pollutants over 68 cities in North China by a Difference in Relative-Difference method that allows estimation of the COVID-19 effects while taking account of the general annual air quality trends, temporal and meteorological variations, and the spring festival effects. Significant COVID-19 effects on all six major air pollutants are found, with NO2 having the largest decline (\u221239.6%), followed by PM2.5 (\u221230.9%), O3 (\u221216.3%), PM10 (\u221214.3%), CO (\u221213.9%), and the least in SO2 (\u221210.0%), which shows the achievability of air quality improvement by a large reduction in anthropogenic emissions. The heterogeneity of effects among the six pollutants and different regions can be partly explained by coal consumption and industrial output data.<\/p>\r\n\r\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" style=\"width: 100%; height: 600px;\" data=\"https:\/\/changjinyuan.com\/wp-content\/uploads\/2024\/12\/Zheng-X.-Guo-B.-\u4f55\u5a67-Chen-S.-X.-2021.-Effects-of-corona-virus-disease-19-control-measures-on-air-quality-in-North-China.pdf\" type=\"application\/pdf\" width=\"300\" height=\"150\" aria-label=\"\u5d4c\u5165 &lt;strong&gt;&lt;mark style=&quot;background-color:rgba(0, 0, 0, 0)&quot; class=&quot;has-inline-color has-vivid-cyan-blue-color&quot;&gt;Effects of corona virus disease-19 control measures on air quality in North China.pdf&lt;\/mark&gt;&lt;\/strong&gt;\"><\/object><a id=\"wp-block-file--media-5c01d212-583b-4ac4-a43b-ed253f78897f\" href=\"https:\/\/changjinyuan.com\/wp-content\/uploads\/2024\/12\/Zheng-X.-Guo-B.-\u4f55\u5a67-Chen-S.-X.-2021.-Effects-of-corona-virus-disease-19-control-measures-on-air-quality-in-North-China.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><strong><mark class=\"has-inline-color has-vivid-cyan-blue-color\" style=\"background-color: rgba(0, 0, 0, 0);\">Effects of corona virus disease-19 control measures on air quality in North China.pdf<\/mark><\/strong><\/a><a class=\"wp-block-file__button wp-element-button\" href=\"https:\/\/changjinyuan.com\/wp-content\/uploads\/2024\/12\/Zheng-X.-Guo-B.-\u4f55\u5a67-Chen-S.-X.-2021.-Effects-of-corona-virus-disease-19-control-measures-on-air-quality-in-North-China.pdf\" download=\"\" aria-describedby=\"wp-block-file--media-5c01d212-583b-4ac4-a43b-ed253f78897f\">Download<\/a><\/div>","protected":false},"excerpt":{"rendered":"<p>Corona virus disease-19 (COVID-19) has substantially reduced human activities and the associated anthropogenic emissions. This study quantifies the effects of COVID-19 control measures on six major air pollutants over 68 cities in North China by a Difference in Relative-Difference method that allows estimation of the COVID-19 effects while taking account of the general annual air quality trends, temporal and meteorological variations, and the spring festival effects. Significant COVID-19 effects on all six major air pollutants are found, with NO2 having the largest decline (\u221239.6%), followed by PM2.5 (\u221230.9%), O3 (\u221216.3%), PM10 (\u221214.3%), CO (\u221213.9%), and the least in SO2 (\u221210.0%), which shows the achievability of air quality improvement by a large reduction in anthropogenic emissions. The heterogeneity of effects among the six pollutants and different regions can be partly explained by coal consumption and industrial output data.<\/p>\n","protected":false},"author":1,"featured_media":2773,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-2776","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-publications-all-en"],"acf":[],"lang":"en","translations":{"en":2776,"cn":2546},"pll_sync_post":[],"_links":{"self":[{"href":"https:\/\/changjinyuan.com\/index.php\/wp-json\/wp\/v2\/posts\/2776","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/changjinyuan.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/changjinyuan.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/changjinyuan.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/changjinyuan.com\/index.php\/wp-json\/wp\/v2\/comments?post=2776"}],"version-history":[{"count":4,"href":"https:\/\/changjinyuan.com\/index.php\/wp-json\/wp\/v2\/posts\/2776\/revisions"}],"predecessor-version":[{"id":3901,"href":"https:\/\/changjinyuan.com\/index.php\/wp-json\/wp\/v2\/posts\/2776\/revisions\/3901"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/changjinyuan.com\/index.php\/wp-json\/wp\/v2\/media\/2773"}],"wp:attachment":[{"href":"https:\/\/changjinyuan.com\/index.php\/wp-json\/wp\/v2\/media?parent=2776"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/changjinyuan.com\/index.php\/wp-json\/wp\/v2\/categories?post=2776"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/changjinyuan.com\/index.php\/wp-json\/wp\/v2\/tags?post=2776"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}