Monitoramento da dose efetiva anual (AED) em solos superficiais dos campos de arroz Ahero, Quênia
Resumo
As doses efetivas anuais (AED), tanto AED (in) quanto AED (out), nos solos superficiais dos campos de arroz Ahero, no Quênia, foram investigadas. O risco à saúde associado dos solos dos quatro campos Campo 1, Campo 2, Campo 3 e Campo 4 foi medido usando técnica espectrométrica de raios gama empregando detector dopado com iodeto de sódio e tálio. Cinco amostras superficiais de solo foram coletadas a uma profundidade de 15 – 20 cm do Campo 1, Campo 2, Campo 3 e duas amostras do Campo 4. O AED médio (in) de 0,30 ± 0,01 mSv/y e um AED médio (out ) de 0,20 ± 0,01 mSv/y para o campo 1, um AED médio (in) de 0,19 ± 0,01 mSv/y, um AED médio (out) de 0,20 ± 0,01 mSv/y para o campo 2, um AED médio (in) de 0,28 ± 0,01 mSv/y e um DEA médio (fora) de 0,18 ± 0,01 mSv/y para o campo 3 e um DEA médio (entrada) de 0,34 ± 0,01 mSv/y e um DEA médio (fora) de 0,23 ± 0,01 mSv/y y para o campo 4. Todos os valores de DEA dentro e fora dos quatro campos estavam abaixo do nível recomendado de 1mSv/y. Os valores indicam que não há perigo para a saúde associado aos solos superficiais da área de estudo para os agricultores e para a população em geral.
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