Influencia de la contaminación producida por los incendios del delta del río Paraná sobre los tiempos de exposición solar para la síntesis de vitamina D

ANA LAURA FISANOTTI; GAMALIEL LÓPEZ-PADILLA; ADRIANA IPIÑA

Ciencia in situ

FACES

Lugar: ROSARIO; Año: 2022

Introduction: Vitamin D is a hormone that the main source of obtaining is solar exposure of the skin. The contamination emitted from the fires on the islands of the Delta of the Paraná river reached a record in the period June-August 2020. This fact affected the availability to acquire the minimum doses of vitamin D (MDD) using solar radiation. Objectives: Estimate the effect of air pollution produced by wildfires and its impact on MDD. Materials and Methods: UV Index measurements from the Davis weather station (IFIR-CONICET-UNR) were selected. FIRMS-NASA-NOAA satellite images were analyzed to identify the presence of smoke. UV Index values were calculated using the TUV model in clear sky and smoke-free conditions. From the UV Index values, the Solar Exposure Times (SET) with and without the presence of smoke were calculated to obtain the MDD. Results: SET to accumulate the MDD were on average 13 ± 3 min for smoke-free days and 17 ± 2 min for critical days, showing a RD% of 30% between them. Conclusion: SET values were higher in the presence of smoke due to the attenuation of the solar radiation. SET resulted higher in the second half of the period when the number of wildfires increased. These results show similarities with other studies in the field of environmental epidemiology.