Evaluation of standard and modified sampling heads for the international PBI surface air system bioaerosol samplers

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      <subfield code="a">Evaluation of standard and modified sampling heads for the international PBI surface air system bioaerosol samplers</subfield>
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      <subfield code="a">Thi study substituted sampling heads with smaller holes to collect small particles with the International PBI Surface Air System (SAS) battery-powered, bioaresol air samplers, which have proved inefficient in collecting small airborne particles such as free bacteria. An Andersen six-stage (6-STG) sampler was used simultaneously with two SAS samplers to sample indoor air in two office environments</subfield>
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      <subfield code="a">Evaluación higiénica</subfield>
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      <subfield code="a">American Industrial Hygiene Association journal</subfield>
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      <subfield code="t">American Industrial Hygiene Association journal</subfield>
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      <subfield code="g">Vol. 56, nº 3, March 1995 ; p. 272-279</subfield>
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