Category Archives: Pollution

Particulate Matter explosion: New Year’s Eve 2017/18

Calm and quit weather for the New Year’s Eve, which also means that the particulate matter (PM) pollution was extreme. Almost completely calm around midnight in Reykjavik as can be seen from the measurements from the IMO below. Windspeed and … Continue reading

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Particulate matter during New Year’s Eve 2016/17

The weather was very good during New Years, calm winds, clear skies and cold. Therefore, PM10 concentration was expected to reach high values, and it did. At Grensás, close to downtown Reykjavik, the concentration reached maximum at 01:30, reaching almost … Continue reading

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Air quality index, loftvís

To estimate air quality, or figure out the current conditions, one needs to know the different units of measure, µg/m3, or mg/m3, and the different health limits for the different pollutants. Also, short term pollution limits are not the same … Continue reading

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New article: “Emergency Hospital Visits in Association with Volcanic Ash, Dust Storms and Other Sources of Ambient Particles: A Time-Series Study in Reykjavík, Iceland.”

New article in Int. J. Environ. Res. Public Health 12(4): 4047 – 4059. (Paper on publisher web site) Emergency Hospital Visits in Association with Volcanic Ash, Dust Storms and Other Sources of Ambient Particles: A Time-Series Study in Reykjavík, Iceland.

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Eruption in Holuhraun and air quality considerations

The eruption in Holuhraun (Holu-lava field) has now been active for just over a week; since 31 Agust (if I remember correctly). There is a fair bit of lava that has been extruded, as can be seen on this Landsat … Continue reading

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Fluorine (F) pollution in Reyðarfjörður 2014

Image from  http://ust.is/library/Skrar/Atvinnulif/Mengandi-starfsemi/Fluor-Reydarfirdi/Fluormaeling_juni_2_2014.pdf. Number in circles shows the concentration. The reference value for livestock fodder is 40 µg/g, but as can be seen from the figure, the values are higher in several areas outside the dilution area (yellow line). Hopefully … Continue reading

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Health limits for H2S in Iceland

We, Sigurður Björnsson and Þröstur Þorsteinsson, recently published a paper where we compare the health limits for H2S in Iceland with other countries (states within US, and so on). It is clear that Iceland does not have uniquely strict health … Continue reading

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