The primary motivation behind the considerable effort in studying stratospheric ozone depletion is the potential for biological consequences of increased solar UVB (280-315 nm) radiation. Yet, direct links between ozone depletion and biological impacts have been established only for organisms of Antarctic waters under the influence of the ozone "hole;" no direct evidence exists that ozone-relat...

This work surveys the depth and character of ozone depletion in the Antarctic and Arctic using available long balloon-borne and ground-based records that cover multiple decades from ground-based sites. Such data reveal changes in the range of ozone values including the extremes observed as polar air passes over the stations. Antarctic ozone observations reveal widespread and massive local deple...

We present the results of a recently finished project concerned with total ozone retrieval on a global scale from HIRS and MSU brightness temperatures. The project encompasses processing TOVS data ranging from 1986 to now by means of a neural network technique utilizing information from all spectral channels. Comparisons with ozone measurements from WOUDC Dobson and Brewer ground stations yield...

Tropospheric ozone concentrations regarded as harmful for human health are frequently encountered in Central Europe in summertime. Although ozone formation generally results from precursors transported over long distances, in urban areas local effects, such as reactions due to nearby emission sources, play a major role in determining ozone concentrations. Europe-wide mapping and modeling of pop...

Ground-level ozone (O3) is one of the most significant forms air pollution around world due to its ability cause adverse effects on human health and environment. Understanding variation association O3 level with precursors weather parameters important for developing precise forecasting models that are needed mitigation planning early warning purposes. In this study, hourly data (O3, CO, NO2, PM...

Nitrogen dioxide (NO2) is noxious, phototoxic and causes eutrophication. NO2 is one of the major precursors of ground level ozone pollution. Emission rates and emission concentrations of various pollutants from stationary sources of power plant emissions are calculated using Emission Inventory methodologies. Ground level concentrations of Nitrogen oxide (NOx) pollution are predicted by Gaussian...