The dustfall collector--a simple passive tool for long-term collection of airborne dust: a project under the Danish Mould in Buildings program (DAMIB)

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The dustfall collector--a simple passive tool for long-term collection of airborne dust : a project under the Danish Mould in Buildings program (DAMIB). / Würtz, H.; Sigsgaard, Torben; Valbjørn, O; Doekes, G; Meyer, H W.

I: Indoor Air, Bind 15, Nr. Suppl 9, 2005, s. 33-40.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

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@article{589f48ccc577495bb793675717d2fbf5,
title = "The dustfall collector--a simple passive tool for long-term collection of airborne dust: a project under the Danish Mould in Buildings program (DAMIB)",
abstract = "A newly developed dustfall device that collects airborne dust by sedimentation has been evaluated in Danish schools. Dust collected over 140 days was compared with airborne dust sampled during single school days and settled floor dust sampled at the end of a school day. Measurements of culturable fungi in air samples corresponded well to those from the dustfall collector in mechanically but not naturally ventilated rooms. Levels of beta(1 --> 3)glucan and culturable fungi in dust from the dustfall collector and settled floor dust did not agree well. Up to 10 times more beta(1 --> 3)glucan per milligram dust was found in the dustfall collectors than in settled floor dust. Only in dust from the dustfall collector was the mass concentration of culturable fungi (cfu/mg) significantly correlated with the degree of dampness. The culturability of fungi in the 140-day dustfall samples tended to be lower than in other types of samples. Nonetheless, the results indicated that the dustfall collector can be used to estimate the median concentration of airborne culturable fungi, provided identical sampling periods are used for all samples. The collector is cost effective and simple to use. PRACTICAL IMPLICATIONS: Traditional ways of assessing exposure to microorganisms by sampling airborne dust or dust from floors have several disadvantages. In the present paper, a new sampler, the dustfall collector, which collects airborne dust by sedimentation over a period of months, is introduced. Tests of this collector indicate that it can be used to estimate the mean concentration of airborne culturable fungi but not beta(1 --> 3)glucan over a long period and that the method can differentiate between buildings with different levels of water damage.",
keywords = "Adolescent, Adult, Air Pollution, Indoor, Child, Dust, Floors and Floorcoverings, Fungi, Glucans, Humans, Schools",
author = "H. W{\"u}rtz and Torben Sigsgaard and O Valbj{\o}rn and G Doekes and Meyer, {H W}",
year = "2005",
doi = "10.1111/j.1600-0668.2005.00342.x",
language = "English",
volume = "15",
pages = "33--40",
journal = "Indoor Air",
issn = "0905-6947",
publisher = "Wiley-Blackwell Publishing, Inc.",
number = "Suppl 9",

}

RIS

TY - JOUR

T1 - The dustfall collector--a simple passive tool for long-term collection of airborne dust

T2 - a project under the Danish Mould in Buildings program (DAMIB)

AU - Würtz, H.

AU - Sigsgaard, Torben

AU - Valbjørn, O

AU - Doekes, G

AU - Meyer, H W

PY - 2005

Y1 - 2005

N2 - A newly developed dustfall device that collects airborne dust by sedimentation has been evaluated in Danish schools. Dust collected over 140 days was compared with airborne dust sampled during single school days and settled floor dust sampled at the end of a school day. Measurements of culturable fungi in air samples corresponded well to those from the dustfall collector in mechanically but not naturally ventilated rooms. Levels of beta(1 --> 3)glucan and culturable fungi in dust from the dustfall collector and settled floor dust did not agree well. Up to 10 times more beta(1 --> 3)glucan per milligram dust was found in the dustfall collectors than in settled floor dust. Only in dust from the dustfall collector was the mass concentration of culturable fungi (cfu/mg) significantly correlated with the degree of dampness. The culturability of fungi in the 140-day dustfall samples tended to be lower than in other types of samples. Nonetheless, the results indicated that the dustfall collector can be used to estimate the median concentration of airborne culturable fungi, provided identical sampling periods are used for all samples. The collector is cost effective and simple to use. PRACTICAL IMPLICATIONS: Traditional ways of assessing exposure to microorganisms by sampling airborne dust or dust from floors have several disadvantages. In the present paper, a new sampler, the dustfall collector, which collects airborne dust by sedimentation over a period of months, is introduced. Tests of this collector indicate that it can be used to estimate the mean concentration of airborne culturable fungi but not beta(1 --> 3)glucan over a long period and that the method can differentiate between buildings with different levels of water damage.

AB - A newly developed dustfall device that collects airborne dust by sedimentation has been evaluated in Danish schools. Dust collected over 140 days was compared with airborne dust sampled during single school days and settled floor dust sampled at the end of a school day. Measurements of culturable fungi in air samples corresponded well to those from the dustfall collector in mechanically but not naturally ventilated rooms. Levels of beta(1 --> 3)glucan and culturable fungi in dust from the dustfall collector and settled floor dust did not agree well. Up to 10 times more beta(1 --> 3)glucan per milligram dust was found in the dustfall collectors than in settled floor dust. Only in dust from the dustfall collector was the mass concentration of culturable fungi (cfu/mg) significantly correlated with the degree of dampness. The culturability of fungi in the 140-day dustfall samples tended to be lower than in other types of samples. Nonetheless, the results indicated that the dustfall collector can be used to estimate the median concentration of airborne culturable fungi, provided identical sampling periods are used for all samples. The collector is cost effective and simple to use. PRACTICAL IMPLICATIONS: Traditional ways of assessing exposure to microorganisms by sampling airborne dust or dust from floors have several disadvantages. In the present paper, a new sampler, the dustfall collector, which collects airborne dust by sedimentation over a period of months, is introduced. Tests of this collector indicate that it can be used to estimate the mean concentration of airborne culturable fungi but not beta(1 --> 3)glucan over a long period and that the method can differentiate between buildings with different levels of water damage.

KW - Adolescent

KW - Adult

KW - Air Pollution, Indoor

KW - Child

KW - Dust

KW - Floors and Floorcoverings

KW - Fungi

KW - Glucans

KW - Humans

KW - Schools

U2 - 10.1111/j.1600-0668.2005.00342.x

DO - 10.1111/j.1600-0668.2005.00342.x

M3 - Journal article

C2 - 15910527

VL - 15

SP - 33

EP - 40

JO - Indoor Air

JF - Indoor Air

SN - 0905-6947

IS - Suppl 9

ER -