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Scaling number concentration measurements from bioaerosol monitors using Hirst-type samplers

The instruments used for routine pollen monitoring are gradually changing from traditional impactors with manual data processing to automated pollen monitors using deterministic and/or machine-learning algorithms for data analysis. This manuscript compares pollen number concentration of Alnus sp., Betula sp., Corylus sp., and Poaceae measured by Hirst-type bioaerosol samplers and the SwisensPoleno automated bioaerosol monitor in Switzerland and Norway. Due to physical particle losses and the classification rate of the algorithms being well below unity, scaling factors had to be applied to the measurements of the SwisensPoleno to match those of the Hirst impactor. These scaling factors depended on the geographic location, i.e. differed significantly between Switzerland and Norway. The importance of adjusting the scaling factors according to the location of the monitoring network and the need for reporting the numerical values of these scaling factors in future scientific publications is emphasized.

2026

Scenarioet som skremmer verden

Benestad, Rasmus; Evangeliou, Nikolaos (intervjuobjekter); Rasmussen, Espen; Hem, Mikal (journalister)

2020

Scenarios for EU-27 heavy metals and POPs emissions to air, water and soil until 2050. NILU PP

Sundseth, K.; Panasiuk, D.; Pacyna, J.M.; Pacyna, E.G.; Glodek, A.

2011

Scenarios for heavy metals, dioxins and POPs emissions to air, water and soil until 2050. NILU F

Sundseth, K.; Panasiuk, D.; Pacyna, J.M.; Pacyna, E.G.

2011

School students working as environmental scientists - Global POP - Dioxins in fish with BDS CALUX NILU PP

Heimstad, E.S.; Grønstøl, G.; Hetland, K.T.; Alarcon, J.M.; Rylander, C.; Mariussen, E.

2009

Schools taking part in a research project investigating dioxins in fish.

Heimstad, E. S.; Grønstøl, G.; Hetland, K. T.; Alarcon, J. M.; Rylander, C.; Mariussen, E.

2017

Schools taking part in a research project investigating dioxins in fish. From pole to pole

Heimstad, E.S.; Grønstøl, G.; Hetland, K.T.; Alarcon, J.M.; Rylander, C.; Mariussen, E.

2016

Screening 2004 - uppföljningsprojekt. Analys av oktaklorstyren, flyktiga metylsiloxaner, vissa fenoler och endosulfan. IVL Rapport, B1745

Kaj, L.; Ekheden, Y.; Dusan, B.; Hansson, K.; Cousins, A.P.; Remberger, M.; Brorström-Lundén, E.; Schlabach, M.

2007

Screening and prioritizing organic chemicals based on far-field human exposure. NILU F

Arnot, J.A.; Brown, T.N.; Breivik, K.; Wania, F.; McLachlan, M.S.

2011

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