Click the Chart link above to see an overview of the measurements since 2011. The overview displays the most frequent measurement category per month. If multiple measurements for a site were taken in a single month the highest reading is used.
Hovering over or clicking on a month on the overview chart will display the readings for that month on the map.
You can contact me by sending an email to:
contact [at] eightytwo [dot] net
Fri 9 Sep 2022