Air Quality - Nitrogen Dioxide - Hourly Mean

<p>This dataset contains the Hourly Mean Objective for Nitrogen Dioxide in Leicester City.  The hourly mean is not to exceed 200µg/m<span lang="EN-US" style="box-sizing: border-box; color: rgb(0, 0, 0); font-family: &amp;quot;Noto Sans&amp;quot;,sans-serif; font-size: 8pt; font-style: normal; font-variant: normal; font-weight: 200; letter-spacing: normal; orphans: 2; position: relative; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; top: -5.5pt; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;">3</span>.  18 exceedances are permitted per year.</p>