Resumo

ROJANO ALVARADO, Roberto; PEREZ MONTIEL, Jhonny  e  DELUQUE, Jorge. Comparative analysis of PM₁₀ particulate matter. Rev.fac.ing.univ. Antioquia [online]. 2011, n.58, pp.27-35. ISSN 0120-6230.

This paper presents the concentrations of PM₁₀ in the urban area of Riohacha, Colombia. Two simultaneous sampling methods are compared. The high­volume sampler PM₁₀, Graseby Andersen and a nephelometer DataRam 4 (Thermo Electron corporation). Data was collected over three months in two sites (Desalud and Bienestar) of the urban area of Riohacha. The results show that the average PM₁₀ concentration was 23.64 µg/m³ and 36.86 µg/m³ in the two stations using the DataRam 4 and 25.09 µg/m³ and 36.64 µg/m³ using the high­volume sampler PM₁₀. The correlation analysis shows a positive consistency for all the pairs in these two monitoring methods: R²= 0.5377 for the season Desalud and R² = 0.7276 for the season Bienestar. The coefficient increased when the results were correlated to the days with RH less than 70%: R² = 0.89 station Desalud and R² = 0.69 Bienestar Station. The results showed that the photometric method (DataRam 4) can be used to determine concentrations of particulate matter PM₁₀ at Riohacha environmental conditions.

Palavras-chave : particles; sampling; humidity; concentration; regression.

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