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Journal of Geography, Environment and Earth Science International

Journal of Geography, Environment and Earth Science International, ISSN: 2454-7352,Vol.: 14, Issue.: 2

 

Original-research-article

 

Deadly Ultraviolet UV-C and UV-B Penetration to Earth’s Surface: Human and Environmental Health Implications

 

 

J. Marvin Herndon1*, Raymond D. Hoisington2 and Mark Whiteside3

1Transdyne Corporation, 11044 Red Rock Drive, San Diego, CA 92131, USA.

2iRay SpectraMetrics, 2760 Adrian Street, Turlock, CA  95382, USA.

3Florida Department of Health in Monroe County, 1100 Simonton Street, Key West, FL 33040, USA.

 

Abstracts

 

Aims: The dangerous portion of ultraviolet radiation is widely believed to be completely absorbed by the atmosphere before reaching Earth’s surface. Our objective is to make multiple measurements at Earth’s surface of the solar irradiance spectrum in the range 200-400 nm. 

Methods: We made numerous measurements of the solar irradiance spectrum in the range 200-400 nm at an elevation of 56 m with International Light Technologies ILT950UV Spectral Radiometer mounted on a Meade LXD55 auto guider telescope tripod and mount assembly.

Results: Our multifold measurements of solar irradiance spectra demonstrate conclusively that all wavelengths in the spectral range 200-400 nm reach Earth’s surface, contrary to the widespread perception that all UV-C and the majority of UV-B never reach the surface. We confirm the surface UV-C measurements of D’Antoni et al. (2007) that were disputed, based on faulty computer model calculations of atmospheric ozone, and thereafter ignored by the geoscience community.

Conclusions: The veracity of our data and D’Antoni et al. (2007)’s data call into question the validity of atmospheric ozone models. Further, we call into question the simplistic supposition of the Montreal Protocol that chloro-fluoro-hydrocarbons are the primary cause of ozone depletion, and point to the very heavy burden of halogens introduced into the atmosphere by ongoing jet-sprayed coal-fly-ash geoengineering. We demonstrate that satellite-based LISIRD solar spectra irradiance at the top of the atmosphere is badly flawed with some regions of the spectrum being less intense than measured at Earth’s surface. That calls into question any calculations made utilizing LISIRD data. We provide introductory information on the devastating effects of UV-B and UV-C on humans, phytoplankton, coral, insects and plants. These will be discussed in greater detail in subsequent articles.

 

Keywords :

Ultraviolet measurement; UV-C; UV-B; LISIRD; ozone depletion; ozone; ultraviolet damage; ultraviolet harm.

 

Full Article - PDF    Page 1-11    Article Metrics

 

DOI : 10.9734/JGEESI/2018/40245

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