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1.
Artigo em Inglês | MEDLINE | ID: mdl-28644400

RESUMO

Elemental characterization of fine particulate matter was undertaken at schools and residences in three low income neighborhoods in Quito, Ecuador. The three zones were located in the northern (Cotocollao), south central (El Camal), and south east (Los Chillos) neighborhoods and were classified as zones 1-3, respectively. Forty elements were quantified via ICP-MS analysis. Amongst the geogenic elements, the concentration of Si was the most abundant followed by S, Al, and Ca. Elements with predominantly anthropogenic sources such as Zn, V, and Ni were higher in zone 3 school followed by zone 2 and zone 1 schools. Enrichment factors were calculated to study the role of crustal sources in the elemental concentrations. Geogenic elements, except K, all had values <10 and anthropogenic elements such as Ni, V, Zn, Pb, As, Cr had >10. Principal Component Analysis suggested that Ni and V concentrations were strongly attributable to pet coke and heavy oil combustion. Strong associations between As and Pb could be attributed to traffic and other industrial emissions. Resuspended dust, soil erosion, vehicular emissions (tailpipe, brake and tire wear, and engine abrasion), pet coke, heavy oil combustion, and heavy industrial operations were major contributors to air pollution.


Assuntos
Poluentes Atmosféricos/química , Poluição do Ar , Monitoramento Ambiental , Habitação , Material Particulado/química , Instituições Acadêmicas , Poluição do Ar/análise , Poeira/análise , Equador , Tamanho da Partícula , Pobreza , Análise de Componente Principal , Características de Residência , Solo , Emissões de Veículos/análise
4.
Quito; s.n; 1989. 130 p. tab.
Tese em Espanhol | LILACS | ID: lil-438879

RESUMO

Siendo la Salud Mental, un tema de controversia y existiendo datos sobre una alta prevalencia de problemas mentales (50 por ciento) en nuestro país y ante la presencia de un programa del Ministerio de Salud Pública que trata de prevenir, recuperar y rehabilitar los trastornos de Salud Mental en los niños escolarizados, se ha realizado la evaluación de este programa.El objetivo de esta tesis es analizar los determinantes generales, particulares y específicos del trastorno mental y presentar una propuesta de elementos para la reformulación del programa de vigilancia de Salud Mental del Escolar, ante los resultados obtenidos


Assuntos
Humanos , Saúde Mental , Saúde Mental/história
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