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  2. Ultraviolet index - Wikipedia

    en.wikipedia.org/wiki/Ultraviolet_index

    Sunburn effect (as measured by the UV index) is the product of the sunlight power spectrum (radiation intensity) and the erythemal action spectrum (skin sensitivity) across the range of UV wavelengths. [9] [10] The UV index is a number linearly related to the intensity of sunburn-producing UV radiation at a given point on the Earth's surface.

  3. National Register of Historic Places listings in Bucks County ...

    en.wikipedia.org/wiki/National_Register_of...

    Location of Bucks County in Pennsylvania. This is a list of the National Register of Historic Places listings in Bucks County, Pennsylvania. This is intended to be a complete list of the properties and districts on National Register of Historic Places in Bucks County, Pennsylvania. The locations of National Register properties and districts for ...

  4. Chapman Township, Snyder County, Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Chapman_Township,_Snyder...

    Chapman Township is bordered by Washington Township to the northwest, Union Township to the northeast, the Susquehanna River to the east, Juniata County to the south and Perry Township to the west. The census-designated place of Port Trevorton lies partially in the northeastern corner of the township along the Susquehanna River and U.S. Route 15.

  5. Climate of Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Climate_of_Pennsylvania

    Tropical cyclones normally threaten the states during the summer and fall, with their main impact being rainfall. [3] Although Hurricane Agnes was barely a hurricane at landfall in Florida, its major impact was over the Mid-Atlantic region, where Agnes combined with a non-tropical low to produce widespread rains of 6 inches (150 mm) to 12 inches (300 mm) with local amounts up to 19 inches (480 ...

  6. Chapman, Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Chapman,_Pennsylvania

    Chapman is a borough in Northampton County, Pennsylvania. The population of Chapman was 223 as of the 2020 census. The population of Chapman was 223 as of the 2020 census. Chapman is part of the Lehigh Valley metropolitan area, which had a population of 861,899 and was the 68th-most populous metropolitan area in the U.S. as of the 2020 census.

  7. Chapman Township, Clinton County, Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Chapman_Township,_Clinton...

    Chapman Township is a township in Clinton County, Pennsylvania, United States. The population was 886 at the 2020 census, [2] down from 993 in 2000. It was originally settled in 1780 and became an official township on February 3, 1819. Originally part of Lycoming County, Chapman Township was incorporated into the newly formed Clinton County in ...

  8. Chapman Township, Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Chapman_Township,_Pennsylvania

    Chapman Township is the name of some places in the U.S. state of Pennsylvania: Chapman Township, Clinton County, Pennsylvania Chapman Township, Snyder County, Pennsylvania

  9. Ultraviolet - Wikipedia

    en.wikipedia.org/wiki/Ultraviolet

    The WHO-standard ultraviolet index is a widely publicized measurement of total strength of UV wavelengths that cause sunburn on human skin, by weighting UV exposure for action spectrum effects at a given time and location. This standard shows that most sunburn happens due to UV at wavelengths near the boundary of the UVA and UVB bands.