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                <gco:CharacterString>See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF</gco:CharacterString>
              </gmd:explanation>
              <gmd:pass>
                <gco:Boolean>false</gco:Boolean>
              </gmd:pass>
            </gmd:DQ_ConformanceResult>
          </gmd:result>
        </gmd:DQ_DomainConsistency>
      </gmd:report>
      <gmd:lineage>
        <gmd:LI_Lineage>
          <gmd:statement>
            <gco:CharacterString>Factory calibrated Aeroqual units were used for PM monitoring. The sensors use laser particle counter technology. They do not have temperature or relative humidity measurement or a heated inlet. At calibration the min. detection limit is reported as 1 ug/m3, accuracy +/- (2 ug/m3 +15% of reading), resolution 1 ug/m3, and response time 5 seconds. Simultaneous data are not always available for both rooms due to stored data being overwritten or logging error. A SPECTROSCOUT XRF on &lt;250um fraction of participant collected household vacuum dust was used for elemental data. SRMs were assessed, and an in-house calibration factor was utilised to optimise performance. Each sample pellet was analysed in duplicate or triplicate, for 700 seconds. The data reported are the resultant mean data for each analysed pellet.</gco:CharacterString>
          </gmd:statement>
        </gmd:LI_Lineage>
      </gmd:lineage>
    </gmd:DQ_DataQuality>
  </gmd:dataQualityInfo>
</gmd:MD_Metadata>

