The Montreal Protocol on Substances that Deplete the Ozone Layer, adopted in 1987, is an international treaty designed to protect the ozone layer by phasing out emissions of chlorofluorocarbons and other ozonedepleting substances (ODSs). A growing body of scientific evidence now suggests that the implementation of the Montreal Protocol will have significant effects on climate over the next seve...

It is estimated that nearly 450,000 Australians get skin cancer every year. Ultraviolet (UV) radiation from sunlight has been identified as the cause of more than 95% of skin cancers in Australia. Accordingly, the focus of skin cancer prevention programs is reducing exposure to UV radiation. In Victoria, improvements in sun protection behaviours and reductions in sunburn and melanoma incidence ...

[1] Two closely related chemical transport models (CTMs) employing the same highresolution meteorological data ( 180 km 180 km 600 m) from the European Centre for Medium-Range Weather Forecasts are used to simulate the ozone total column and tropospheric distribution over the western Pacific region that was explored by the NASA Transport and Chemical Evolution over the Pacific (TRACE-P) measure...

This paper presents key results achieved by an analysis of the relation between high-quality simultaneous Dobson, Brewer ground and TOMS-V8, GOME-WFDOAS satellite total ozone observations for Hradec Kralove, Czech Republic. Statistically significant seasonal differences with maxima up to 4% of monthly averages have been found between Dobson and Brewer measurements during the winter/spring month...

The article substantiates the importance of protecting ozone layer at international level, since efforts individual States to limit turnover ozone-depleting substances national level are insufficient. legal regulation in this area is investigated, need for protection justified. In order implement norms law, it also necessary adopt appropriate legislation connection with which analyzes Russian F...

This paper presents the investigation results of UV measurement at different level of altitudes and the development of a new portable instrument for measuring UV. The rapid growth of industrial sectors in developing countries including Malaysia, brings not only income to the nation, but also causes pollution in various forms. Air pollution is one of the significant contributors to global warmin...

1. INTRODUCTION Over the past 60 years, for the reasons shown in Figure 1, the engineering industry has found halogen-containing cleaning solvents to be technically very effective. More recently, the chemical inertness, non-flammability, low toxicity and convenience of 1,1,2-trichlorotrifluoroethane, has led to the wide use of products based on CFC-113 in electronics applications. Evidence of t...

A coupled photosynthesis-stomatal conductance model with single-layer sunlit and shaded leaf canopy scaling is implemented and evaluated in a diagnostic box model with the Pleim-Xiu land surface model (PX LSM) and ozone deposition model components taken directly from the meteorology and air quality modeling system—WRF/CMAQ (Weather Research and Forecast model and Community Multiscale Air Qualit...

Peroxy radical (HO2+6RO2) measurements, using the PEroxy Radical Chemical Amplification (PERCA) technique at the North Atlantic Marine Boundary Layer EXperiment (NAMBLEX) at Mace Head in summer 2002, are presented and put into the context of marine, boundarylayer chemistry. A suite of other chemical parameters (NO, NO2, NO3, CO, CH4, O3, VOCs, peroxides), photolysis frequencies and meteorologic...

A new Lagrangian method is proposed to quantify the transport of ozone – or any other atmospheric constituent – by objectively-defined air-masses. In the framework of mesoscale modelling, this method is an alternative to classical Eulerian or trajectorybased methods, which suffer from many drawbacks at this scale. The elementary 5 air-parcels are tagged with their initial location (what is made...