EFFECT OF ANTHROPOGENIC POLLUTION ON GROUND REACHING SOLAR UV-B RADIATION-- A CASE STUDY

K. MADHAVI LATHA
K. V. S. BADARINATH

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DOI: 10.2190/9Q38-TPPP-MEM2-16FW

Abstract

Solar ultraviolet radiation reaching the earth's surface has been extensively discussed because of its biological and photochemical activity. Emphasis has been placed on the potential increase in surface UV radiation due to the depletion of stratospheric ozone. The present study deals with the variations of UV-B and Aerosol Optical Depth (AOD) with respect to hazy-day and day-after scavenging due to heavy rain washout in a tropical urban environment. Special variation of AOD showed high aerosol loading at 380 nm, suggesting dominant accumulation mode particle loading. Comparison of UV-B intensities with AOD on hazy-day and day-after heavy rain washout suggests ~45% increase in UV-B intensities. The results are discussed in detail in the article.

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