Air Quality Data from UK-AIR

<p>This data is downloaded from UK-AIR database from the Department of Environment, Food and Rural Affairs. The data supplied contains the daily average pollutant reading for Ozone, Nitrogen Oxide, Nitrogen Dioxide and Sulpher Dioxide from October 1997 to July 2016.</p>
<p>The are two data sources from different Cambridgeshire air monitoring stations. One is called Cambridge Roadside, which is within Cambridge City, and the other is in Wicken Fen, East Cambridgeshire.</p>
<p>The national air quality objecitves for these pollutant state the following averages cannot exceed:</p>
<p>Nitrogen Oxide: 30 ugm-3 per year<br />
Nitrogen Dioxide: 40 ugm-3 per year<br />
Ozone: 100 ugm-3 per 8 hour (max 10 times a year)<br />
Sulphur Dioxide: 125 ugm-3 per day (max 3 times a year) or 20 ugm-3 per year</p>

本数据集源自英国环境、食品和农村事务部下属的 UK-AIR 数据库。所提供数据涵盖自 1997 年 10 月至 2016 年 7 月期间的每日平均污染物读数，包括臭氧、氮氧化物、二氧化氮和二氧化硫。