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Venegas Valencia, Orlando Andrés[Caracterización Físico Química de Material Particulado Diesel Mediante Microscopía Electrónica de Transmisión]

La degradación de las tierras constituye uno de los fenómenos de mayor impacto económico y ambiental para el sector silvoagropecuario en Chile. Los suelos de la comuna de Puchuncaví —objetos de la presente investigación— representan un caso emblemático de degradación y contaminación, como resulta...

Erosive processes are one of the major environmental and economic problems of Chilean agriculture. The soils of Puchuncaví -subject of the present research- in particular, exemplifies an emblematic case of degradation and pollution, as a result of over forty years of exposure to atm ospheric emis...


Soto Barrales, Felipe Alejandro[Análisis y Cuantificación de Material Particulado Diesel: Caracterización Físico-Química de Partículas Ultrafinas y Modelación de Emisiones Producidas por Vehículos Fuera de Ruta]

It is known that residential wood combustion (RWC) is an important source of fine particle emissions. The purpose of this work was to characterize the chemical composition of the particulate matter present in the Temuco urban atmosphere during winter, specifically the polycyclic aromatic hydrocar...


Cereceda-Balic, FranciscoFadic, XimenaLlanos, AnaDomínguez, Ana MaríaGuevara, Juan LuisVidal, VíctorDíaz-Robles, Luis AlonsoEtcharren, PabloSchiappacasse Poyanco, Luis[Obtaining PAHs Concentration Ratios and Molecular Markers for Residential Wood Combustion: Temuco, a Case Study]Obtaining PAHs Concentration Ratios and Molecular Markers for Residential Wood Combustion: Temuco, a Case Study

Box-Jenkins Time Series (ARIMA) and the multivariate linear models (MLM) have been important and popular linear tools in air quality forecasting during the past decade for urban areas. On the other hand, artificial neural networks (ANN) recently have been used successfully as a nonlinear tool in ...


Ortega-Bravo, J.C.Ramírez, M.Fu, J.S.Reed, G.D.[A hybrid ARIMA and artificial neural networks model to forecast particulate matter in urban areas: The case of Temuco, Chile]A hybrid ARIMA and artificial neural networks model to forecast particulate matter in urban areas: The case of Temuco, Chile

Temuco is a mid-size city representative of severe wood smoke pollution in southern Chile; however, little is known about the indoor air quality in this region. A field measurement campaign at 63 households in the Temuco urban area was conducted in winter 2014 and is reported here. In this study,...


Jorquera, HéctorBarraza, FranciscoHeyer, JohannaValdivia, GonzaloSchiappacasse Poyanco, LuisMontoya, Lupita D.[Indoor PM2.5 in an urban zone with heavy wood smoke pollution: The case of Temuco, Chile]Indoor PM2.5 in an urban zone with heavy wood smoke pollution: The case of Temuco, Chile

Temuco is one of the most highly wood-smoke-polluted cities in the world. Its population in 2004 was 340,000 inhabitants with 1587 annual deaths, of which 24% were due to cardiovascular and 11% to respiratory causes. For hospital admissions, cardiovascular diseases represented 6% and respiratory ...


Sanhueza, P.A.Torreblanca, M.A.Díaz-Robles, Luis AlonsoSchiappacasse Poyanco, LuisSilva, M.P.Astete, T.D.[Particulate air pollution and health effects for cardiovascular and respiratory causes in Temuco, Chile: A wood-smoke-polluted urban area]Particulate air pollution and health effects for cardiovascular and respiratory causes in Temuco, Chile: A wood-smoke-polluted urban area

The particulate matter pollution, induced mainly by the domiciliary wood heating, vehicular traffic, and industrial activity, has become the main source of concern of urban air quality in cities of colder climates. The city of Temuco, 800 km to the south of Santiago, Chile, suffers from severe wo...


Sanhueza, P.A.Díaz-Robles, Luis AlonsoTorreblanca, M.A.Schiappacasse Poyanco, LuisSilva, M.P.Astete, T.D.[Particulate air pollution and health effects for cardiovascular and respiratory causes in Temuco City, Chile]Particulate air pollution and health effects for cardiovascular and respiratory causes in Temuco City, Chile

Air quality time series consists of complex linear and non-linear patterns and are difficult to forecast. Box-Jenkins Time Series (ARIMA) and multilinear regression (MLR) models have been applied to air quality forecasting in urban areas, but they have limited accuracy owing to their inability to...


Díaz-Robles, Luis AlonsoOrtega, J.C.Fu, J.S.Reed, G.D.Chow, Judith C.Watson, J.G.Moncada-Herrera, J.A.Díaz-Robles, Luis Alonso[A hybrid ARIMA and artificial neural networks model to forecast particulate matter in urban areas: The case of Temuco, Chile]A hybrid ARIMA and artificial neural networks model to forecast particulate matter in urban areas: The case of Temuco, Chile

La contaminación atmosférica constituye uno de los principales problemas ambientales de Chile centro sur y sus efectos en la salud se reconocen parcialmente. Esta investigación identifica el perfil de consulta por enfermedades respiratorias en los niños menores de 5 años y correlaciona los fenóm...

Atmospheric pollution is one of the principal environmental problems of Central Southern Chile and its effects on health are partially recognized. This research identifies the profile of consultations for respiratory diseases in children under 5 years of age and correlates the critical phenomena...


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