Žröstur Žorsteinsson, Žorsteinn Jóhannsson, Siguršur B. Finnsson og Anna Rósa Böšvarsdóttir

Svifryksmengun um įramót

Forsķša Nįttśrufręšingsins Įgrip. 

Svifryksmengun ķ Reykjavķk um įramót męlist margfalt meiri en dęmigerš hįmarksgildi yfir įriš (~100 µg/m3, 30-mķn gildi). Įramótin 2005/6 męldist styrkurinn til dęmis 2.374 µg/m3 (30-mķn. gildi) viš gatnamót Langholtsvegar og Skeišarvogs. Sterkir vindar og śrkoma hafa veruleg įhrif til aš draga śr styrk svifryksmengunar og breytingar į vindįtt, jafnvel ķ hęgvišri, geta leitt til flókinna tķmaraša. Enda žótt styrkurinn verši mjög hįr eru žessir atburšir undantekningarlķtiš skammvinnir.

 

Heimild:
Žröstur Žorsteinsson, Žorsteinn Jóhannesson, Siguršur B. Finnsson og Anna R. Böšvarsdóttir. 2010.
Svifryksmengun um įramót. Nįttśrufręšingurinn, 80(1 – 2): 58 - 64.

Žröstur Žorsteinsson
Vinsamlegast hafiš samband varšandi frekari upplżsingar og tilvitnanir.

Particulate matter pollution during New year's Eve

Article in Nįttśrufręšingurinn

Abstract. The airborne particulate matter pollution (PM10) around New-years Eve in Reykjavik, Iceland, reaches values that are many times greater (up to 2374 µg/m3, 30 min value) than the typical daily peak values (~100 µg/m3, 30 min value). Strong winds (and precipitation) are efficient in reducing the peak concentration, and changes in the wind direction, even for relatively calm winds, can complicate the time series. Although the concentration reaches high values, these pollution events are of short duration.