Transcription of Chapter 7.3 Particulate matter - World Health Organization
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WHO Regional Office for Europe, Copenhagen, Denmark, 2000 1 Chapter Particulate matter Introduction In the 1987 edition of Air quality guidelines for E urope (1), sulfur dioxide and Particulate matter (PM) were treated jointly. Short-term (24-hour average) guideline values were derived for combined exposure to sulfur dioxide and Particulate matter , expressed in black smoke , total suspended particulates and thoracic particles . Long-term (one-year average) guideline values were derived only for sulfur dioxide and black smoke.
used. Such thoracic particle measurements according to the ISO standard are roughly equivalent to the sampling characteristics for PM10. Soderholm proposed modified particle-size-selective sampling criteria for adoption by ISO, the American Conference of Governmental Industrial Hygienists (ACGIH) and the European
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