Topic: | Re:Re:Re:PM10 particulates POLLUTION: 6 out of 10 between 10 - 11 am today:- | |
Posted by: | Ian M Green | |
Date/Time: | 14/09/10 19:27:00 |
According to http://www.airquality.co.uk/standards.php, PM10 bands (scale of 1-10) are computed from the running 24 hour mean, i.e. the average of all PM10 readings during the previous 24 hours. So checking the band a couple of times a day should pick up all the peaks. The flip side of the coin is that it will take quite a few hours for a new burst of pollution, even at a high level, to affect the band reading. |