soil contamination by toxocara spp. eggs in a university in mexico city contaminação do solo por ovos de toxocara spp. em uma universidade na cidade do méxico

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ID: 195354
2012
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Abstract
The contamination levels of Toxocara spp. eggs in soil samples from a university campus in Mexico City were evaluated and analysed according to garden size, and were related with the percentage of Toxocara spp. eggs and its viability according to the soil characteristics. A total of 1458 soil samples collected in 15 gardens (six large and nine small) were analysed by sedimentation-flotation with zinc sulphate solution on at 33%. Contamination was low (12.9%), and egg viability was high (65.5%). The size of the garden had no influence on the presence and viability of Toxocara spp. eggs. Contamination was negatively correlated with the percentage of vegetation (r = -0. 61, P < 0.01) and the viability was negatively associated with the percentage of clay in the soil samples (r = -0.51, P < 0.04). The size of the garden did not influence the presence and viability of Toxocara spp. eggs.
Os níveis de contaminação de ovos de Toxocara spp. em amostras de solo de um Campus Universitário na Cidade do México foi avaliado e analisado de acordo com o tamanho dos jardins, e relacionado com a porcentagem da presença de Toxocara spp. e sua viabilidade com as características do solo. Um total de 1458 amostras de solo coletadas em 15 jardins (seis grandes e nove pequenos) foram analisados pelo método de sedimentação-flutuação em sulfato de zinco 33%. A contaminação foi baixa (12.9%), e a viabilidade de ovos foi alta (65.5%). O tamanho do jardim não teve influência sobre a presença e a viabilidade de ovos de Toxocara spp. A contaminação foi negativamente correlacionada com o percentual de vegetação (r = -0.61 P < 0.01) e a viabilidade negativamente associado com a porcentagem de argila nas amostras de solo (r = -0.51 P < 0.04). O tamanho do jardim não influenciou a presença e viabilidade de ovos de Toxocara spp.
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Authors ;Carlos Antelmo Celis Trejo;Camilo Romero Núñez;Adelfa del Carmen García Contreras;Germán Eduardo Mendoza Barrera
Journal journal of clinical periodontology
Year 2012
DOI
10.1590/S1984-29612012000300022
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612012000300022
Keywords
zoonoses zoonosis environmental contamination

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