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Engenharia Sanitaria e Ambiental
Print version ISSN 1413-4152
NEVES, Marllus Gustavo Ferreira Passos das and TUCCI, Carlos Eduardo Morelli. Litter composition delivered by street sweeping and by the storm drainage network, in an urban catchment. Eng. Sanit. Ambient. [online]. 2011, vol.16, n.4, pp.331-336. ISSN 1413-4152. http://dx.doi.org/10.1590/S1413-41522011000400003.
This paper presents results of a study about physical composition of litter from street sweeping and also those delivered by a storm drainage network urban catchment, identifying, among others, influences of the frequency of sweeping service and the season. The litter from sweeping came from several parts of the catchment and those delivered by a storm drainage network were taken from a well pump house, convergence point of the flow. Some interesting results: on average, 23% of the street sweeping mass is dry litter, predominantly soft plastics. More presence of hard plastics occurred at areas of daily sweeping. With the analysis of litter in the storm drainage network: pet plastics are more delivered by storm drainage network in intense rainfall than appear in bags sweeping. Soft plastics always occur in the bags sweeping and into storm drainage network throughout the year.
Keywords : litter; urban drainage; urban water.