隨著 COVID-19 在世界各地蔓延，世界空氣品質指數專案團隊發現對覆蓋整個世界地圖的全球數據的請求激增。因此，WAQI 專案現在提供了一個新的專用資料集，從 2015 年 1 月至今，每天更新 3 次，涵蓋全球約 380 個主要城市。
每個主要城市的數據都是基於幾個站點的平均值（中位數）。此資料集提供每種空氣污染物種類（PM2.5、PM10、臭氧...）的最小值、最大值、中位數和標準差以及氣象數據（風、溫度…）。
所有空氣污染物種類均轉換為美國 EPA 標準（即無原始濃度）。所有日期均基於 UTC。
計數列是用於計算中位數和標準差的樣本數。
城市中位數是使用可用氣象站的所有 AQI 值每天計算的
2015年至今的資料集：
如果您使用此資料集從研究中獲得任何結果，請透過資料平台請求表格向我們發送訊息，並附上您的研究結果或文章的鏈接，讓我們知道。我們將編制一份所有基於 COVID-19 空氣品質的研究的列表，並創建一個新頁面供所有人查看。
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