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2 2019

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Microplastics in the drinking water of the Riobamba city, Ecuador

Paredes Marcel, Castillo Tito, Viteri Rafaela, Fuentes Gabriela, Bodero Elba

Przegląd Naukowy Inżynieria i Kształtowanie Środowiska

2019

Vol. 28, No. 4

653--663

The city of Riobamba captures for human consumption groundwater from melting glaciers, from seven wells in the foothills of the Chimborazo volcano. The objective is determine the percentage of existing microplastics in drinking water distribution system. Sixty two samples were collected, analysed with a cellulose filter and Nile red dye. Then observed in a stereoscope, obtaining presence in 12 samples of the 62 analysed. The results of the analysis show that there is a 19% presence of microplastics.

Determining NO2 immission levels in a conflicted area: Riobamba, Ecuador

Paredes Marcel, Viteri Rafaela, Auqui Dayana, Idrovo David

Przegląd Naukowy Inżynieria i Kształtowanie Środowiska

2019

Vol. 28, No. 3

465--475

Riobamba has areas with high vehicular influence. For the determination of nitrogen dioxide concentrations, passive samplers were used, which were placed at points throughout the domain. The concentrations obtained in the field were interpolated with the information generated with the model traffic emissions software, estimating the relationship between vehicular traffic and the presence of gas. Allow to know the amount of pollutants that breathe about 250 pedestrians on average in the area.