Accuracy and reliability of Chile's National Air Quality Information System for measuring particulate matter: Beta attenuation monitoring issue

Environment International
Richard Toro AManuel A Leiva-Guzmán

Abstract

A critical analysis of Chile's National Air Quality Information System (NAQIS) is presented, focusing on particulate matter (PM) measurement. This paper examines the complexity, availability and reliability of monitoring station information, the implementation of control systems, the quality assurance protocols of the monitoring station data and the reliability of the measurement systems in areas highly polluted by particulate matter. From information available on the NAQIS website, it is possible to confirm that the PM2.5 (PM10) data available on the site correspond to 30.8% (69.2%) of the total information available from the monitoring stations. There is a lack of information regarding the measurement systems used to quantify air pollutants, most of the available data registers contain gaps, almost all of the information is categorized as "preliminary information" and neither standard operating procedures (operational and validation) nor assurance audits or quality control of the measurements are reported. In contrast, events that cause saturation of the monitoring detectors located in northern and southern Chile have been observed using beta attenuation monitoring. In these cases, it can only be concluded that the PM content...Continue Reading

References

Jul 10, 2004·Journal of the Air & Waste Management Association·Mario J Molina, Luisa T Molina
Jul 25, 2007·Environmental Pollution·Marilena Kampa, Elias Castanas
Jan 14, 2010·Journal of the Air & Waste Management Association·Pedro A SanhuezaTeresa D Astete
Jun 26, 2013·Environmental Pollution·Manuel A Leiva GRodrigo Seguel
Oct 11, 2014·Environmental Pollution·Gerd A FolberthSteven T Rumbold
Dec 3, 2014·Environment International·Ki-Hyun KimShamin Kabir

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Citations

Oct 13, 2016·Scientific Reports·Chun-Sheng LiangYong-Liang Ma

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