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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad de Antioquia
2015
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| Online Access: | https://www.redalyc.org/articulo.oa?id=43038629018 |
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Table of Contents:
- Influence of meteorology and source variation on airborne PM 10 levels in a high relief tropical Andean city Carlos Mario González-Duque Johana Cortés-Araujo Beatriz Helena Aristizábal-Zuluaga Ingeniería mid PM 10 scavenging sized Andean cities meteorological variables Atmospheric particulate matter (PM 10 ) was evaluated with meteorology, mixing height and source variation over a two-year period (from January 2010 to December 2012) in the densely populated tropical Andean city of Manizales. The highest levels of PM 10 were observed in areas with the highest vehicular density with values in a range of 18 - 69 μg m -3 . PM 10 concentrations were influenced by meteorological parameters, positively associated with temperature (r = 0.40), and negatively associated with relative humidity (r = -0.47) and precipitation (r = -0.38). The effects of scavenging by precipitation were observed by analyzing PM 10 concentrations for dry periods versus wet periods. The high sulfate PM 10 ionic contents observed throughout the city were consistent with the influence of public transport and automobiles, which use diesel and gasoline as principal fuels, and are recognized as the main source of particulate matter emissions. Increasing midday mixing height over downtown of the city (from 900 m to 1600 m) effectively diluted peak hour emission from vehicular traffic, as observed over a 24 hour sampling period, with 30-second intervals. These preliminary data suggest factors important to modeling PM 10 in high rainfall and densely populated tropical mountain ecosystems. 2015 artículo científico 0120-6230 https://www.redalyc.org/articulo.oa?id=43038629018 en http://www.redalyc.org/revista.oa?id=430 Revista Facultad de Ingeniería Universidad de Antioquia application/pdf Universidad de Antioquia Revista Facultad de Ingeniería Universidad de Antioquia (Colombia) Num.74