Now showing items 1-6 of 6

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

      Toro Araya, Richard; Campos, Claudia; Molina, Carolina; Morales Segura, Raúl; Leiva Guzmán, Manuel (Elsevier, 2015)
      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 ofmonitoring ...
    • Carbonaceous Aerosols in Fine Particulate Matter of Santiago Metropolitan Area, Chile 

      Toro Araya, Richard; Flocchini, Robert; Morales Segura, Raúl; Leiva Guzmán, Manuel (Hindawi, 2014)
      Measurements of carbonaceous aerosols in South American cities are limited, and most existing data are of short term and limited to only a few locations. For 6 years (2002–2007), concentrations of fine particulate matter ...
    • Inhaled and inspired particulates in Metropolitan Santiago Chile exceed air quality standards 

      Toro Araya, Richard; Morales Segura, Raúl; Canales, Mauricio; González Rojas, Claudio; Leiva Guzmán, Manuel (Elsevier, 2014)
      The long-term trends and spatial variability of PM2.5 and PM10 over the period between 2000 and 2012 in the Santiago Metropolitan Area, Chile are studied. The annual PM10 and PM2.5 mass concentration ranged between 76 ...
    • Particulate matter in urban areas of south-central Chile exceeds air quality standards 

      Molina, Carolina; Toro Araya, Richard; Morales Segura, Raúl; Manzano, Carlos; Leiva Guzmán, Manuel (Springer, 2017-06)
      This study analyzed air quality in terms of the concentrations of sub-10 mu m (PM10) and sub-2.5 mu m particulate matter (PM2.5) recorded at 23 automated public monitoring stations located in 16 cities in south-central ...
    • Trend and recovery of the total ozone column in South America and Antarctica 

      Toro Araya, Richard; Araya, Consuelo; Labra O., Felipe; Morales Salinas, Luis; Morales, Raúl; Leiva Guzmán, Manuel (Springer, 2017)
      South America is one of the most vulnerable areas to stratospheric ozone depletion; consequently, an increased amount of UV radiation reaches the Earth's surface in this region. In this study, we analyzed the long-term ...
    • Urban Atmospheric Ammonia in Santiago City, Chile 

      Toro Araya, Richard; Canales, Mauricio; Flocchini, Robert G.; Morales Segura, Raúl; Leiva Guzmán, Manuel (2014)
      To improve the current understanding of the ammonia distribution in the major urban area of Chile, measurements of atmospheric NH3 were collected in Santiago during three sampling periods (25 April to 27 May, 11 to 26 ...