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Evaluation of air quality after the adoption of energy-saving measures in the ventilation system at welding workshops

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      <subfield code="a">Nygren, Olle</subfield>
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      <subfield code="a">Evaluation of air quality after the adoption of energy-saving measures in the ventilation system at welding workshops</subfield>
      <subfield code="c">O. Nygren and B. Nordström</subfield>
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      <subfield code="a">This work describes a method for investigating the effects on air quality in terms of airborne particulate concentration, after the adoption of energy-saving measures in the ventilation system, at two welding workshops, well as the effects. The method is based on the use of the iron level in the air as a tracer for the dust level. The results of the study show that the described method is usable for investigations of this kind. The anticipated level of energy-saving may be obtained by the suggested modifications of the ventilation, without any decrease in work-room air quality, in terms of the iron and dust levels</subfield>
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      <subfield code="a">Contaminantes químicos</subfield>
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      <subfield code="a">Control de la contaminación</subfield>
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      <subfield code="0">MAPA20080612597</subfield>
      <subfield code="a">Sistemas de ventilación</subfield>
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      <subfield code="a">Nordström, B.</subfield>
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      <subfield code="a">The Annals of occupational hygiene</subfield>
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      <subfield code="t">The Annals of occupational hygiene</subfield>
      <subfield code="d">Oxford [etc.]</subfield>
      <subfield code="g">nº 5, October 1992 ; p. 531-543</subfield>
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