Equivalence testing of filter-based, beta-attenuation, TEOM, and light-scattering devices for measurement of PM10 concentration in animal houses

Size-Segregated Particulate Matter in a Selected Sports Facility in Poland

“…These results, in the case of high humidity, may be overstated, as fine drops of water vapour are identified by optical devices as PM particles [39]. The problem of optical meters to overestimate results was also highlighted in several other publications [24,[39][40][41][42][43][44][45]. Due to the apparent overstatement of results by the optical method, for further analysis (I/O ratios, daily doses), mean concentrations obtained by the gravimetric method were used.…”

Particulate matter emission from livestock houses: measurement methods, emission levels and abatement systems

“…This may explain why reductions are generally higher than in previous research, but it does not explain why the PM 2.5 reduction was higher than the PM 10 reduction in both B3 and B4 (Table 4). As reported and discussed by Cambra-López et al (2009) for indoor air ionization systems, and by Winkel et al (2015a) for end of pipe ionization systems, the removal efficiency of ionisers usually increases with increasing particle size. It is unclear why this seems to be vice versa for the NAI in these commercial broiler farms.…”

“…Since this device systematically underestimates true concentrations, all measured values where calibrated by a factor 2.1 based on the equivalence studies of CambraLópez et al (2015) and Winkel et al (2015a). …”

Resultaten geur- en fijnstofmetingen vleeskuikens BeterLeven1Ster : Indicatieve metingen tijdens een enkele ronde

“…López et al (2015) enWinkel et al (2015).De DustTraks zijn zo dicht mogelijk bij het afzuigpunt geplaatst (zie ook 2.2.3). Voor het meten van de achtergrondconcentratie is het meetpunt gekozen op basis van de windrichting (zie ook 2.2.3).…”