According to our research of Texas and other state lists there were 170 registered sex offenders living in Katy, Texas as of April 20, 2017. The ratio of number of residents in Katy to the number of sex offenders is 86 to 1. Median real estate property taxes paid for housing units with mortgages in 2015: $3,678 (2.1%)
solar spectrum. The distribution of electromagnetic radiation emitted by the sun. Although the solar spectrum essentially covers the entire electromagnetic spectrum, most of the energy is concentrated in an interval whose wavelengths span from approximately 300 nm to 3000 nm.
Everyone is exposed to UV radiation from the sun and an increasing number of people are exposed to artificial sources used in industry, commerce and recreation. Emissions from the sun include visible light, heat and UV radiation. The UV region covers the wavelength range 100-400 nm and is divided into three bands: 1  UVA (315-400 nm). 2  UVB (280-315 nm). 3  UVC (100-280 nm).