Technology and Engineering
  • ISSN: 2333-2581
  • Modern Environmental Science and Engineering

The UV Index in Zacatecas City

Juan Manuel García González, Ricardo Conejo Flores, and Adriana E. González Cabrera

Academic Unit of Chemical Sciences, Autonomous University of Zacatecas, Mexico

Abstract: The UV Index is a measure of the intensity of UV radiation on the Earth’s surface and an indicator of its ability to produce skin lesions, which serves as an important vehicle to raise awareness in the population and warn people of the need to take protective measures when exposed to UV radiation [1]. Ultraviolet (UV) rays they are invisible to the human eye and are classified according to their wavelength. It should be noted that the shorter the wave, the more intense is the energy of the solar rays. They are divided into three types: UVA, UVB and UVC. UVB radiation is the main cause skin cancer. The objective of this research is to quantify the UV Index in Zacatecas city. The methodology consisted in collecting ultraviolet radiation (UVB) data in the period from January 1 to December 31, 2018, using a 501-A Biometer from Solar Ligth, installed in the Zacatecas_04 solarimetric station belonging to the System National of Solarimetry, located in Building E6 of the UAZ Siglo XXI Campus. Later the data was transformed into the UV Index using the conversion factor of 2.332 (Med/h to W/m² to IUV). The results that were obtained in the span of time evaluated had a 26.14% moderate UV Index, 4.01% very high UV Index and 0.02% UV Index extremely high. Exposure to UVB begins most intensely from 10:00 am to 2:00 pm. Concluding, that the average height above sea level of Zacatecas city, coupled with the low presence of atmospheric aerosols allow UVB is high and when converted to UV Index in the evaluated period is high.

Key words: Index UV, Zacatecas, biometer

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