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Author Villalobos, A.M.; Barraza, F.; Jorquera, H.; Schauer, J.J. url  doi
openurl 
  Title Wood burning pollution in southern Chile: PM2.5 source apportionment using CMB and molecular markers Type Journal Article
  Year 2017 Publication Environmental Pollution (Barking, Essex : 1987) Abbreviated Journal Environ Pollut  
  Volume 225 Issue Pages 514-523  
  Keywords Aerosols/analysis; Air Pollutants/*analysis; Chile; Cities; Coal; Dust; *Environmental Monitoring; Fires; Heating; Nitrates/analysis; Particulate Matter/*analysis; Seasons; Smoke; Sulfates/analysis; Wood/chemistry; Cmb-Mm; Fuel poverty; Source apportionment; Southern Chile; Sustainable urban development; Wood burning  
  Abstract Temuco is a mid-size city representative of severe wood smoke pollution in southern Chile; i.e., ambient 24-h PM2.5 concentrations have exceeded 150 mug/m3 in the winter season and the top concentration reached 372 mug/m3 in 2010. Annual mean concentrations have decreased but are still above 30 mug/m3. For the very first time, a molecular marker source apportionment of ambient organic carbon (OC) and PM2.5 was conducted in Temuco. Primary resolved sources for PM2.5 were wood smoke (37.5%), coal combustion (4.4%), diesel vehicles (3.3%), dust (2.2%) and vegetative detritus (0.7%). Secondary inorganic PM2.5 (sulfates, nitrates and ammonium) contributed 4.8% and unresolved organic aerosols (generated from volatile emissions from incomplete wood combustion), including secondary organic aerosols, contributed 47.1%. Adding the contributions of unresolved organic aerosols to those from primary wood smoke implies that wood burning is responsible for 84.6% of the ambient PM2.5 in Temuco. This predominance of wood smoke is ultimately due to widespread poverty and a lack of efficient household heating methods. The government has been implementing emission abatement policies but achieving compliance with ambient air quality standards for PM2.5 in southern Chile remains a challenge.  
  Address Environmental Chemistry and Technology Program, University of Wisconsin-Madison, 660 North Park Street, Madison, WI 53706, USA  
  Corporate Author (up) Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0269-7491 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28318790 Approved no  
  Call Number ref @ user @ Serial 97509  
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