新型コロナウイルス感染症が世界中に広がる中、世界大気質指数プロジェクト チームは、世界地図全体をカバーするグローバル データのリクエストが急増していることに気づきました。その結果、WAQI プロジェクトは現在、2015 年 1 月から現在まで、世界の約 380 の主要都市をカバーする、1 日 3 回更新される新しい専用データセットを提供しています。
各主要都市のデータは、複数の観測点の平均 (中央値) に基づいています。このデータセットは、大気汚染物質の種類 (PM2.5、PM10、オゾンなど) のそれぞれの最小、最大、中央値、標準偏差と気象データを提供します。 (風、気温など)。
すべての大気汚染物質は米国 EPA 基準に変換されます (つまり、未処理の濃度はありません)。すべての日付は UTC ベースです。
count 列は、中央値と標準偏差の計算に使用されるサンプルの数です。
都市の中央値は、利用可能なステーションのすべての AQI 値を使用して 1 日ごとに計算されます。
2015 年から現在までのデータセット:
このデータセットを使用した研究から結果が得られた場合は、研究結果または論文へのリンクを添えて、データ プラットフォームのリクエスト フォームからメッセージを送信してお知らせください。私たちは、新型コロナウイルス感染症（COVID-19）の大気質に基づくすべての研究のリストを編集し、誰もが閲覧できる新しいページを作成します。
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