Atmosferos tarša sunkiaisiais metalais. Poveikio žmonių sveikatai ir aplinkai mažinimas

Abstract

The majority of heavy metals - mercury (Hg), plumbum (Pb), cadmium (Cd), chromium (Cr), copper (Cu), nickel (Ni), zinc (Zn), cobalt (Co), vanadium (V), molybdenum (Mo), beriyllium (B), arsenic (As) and many more – have the negative impact on health. Namely for this reason it is very important to control the getting of heavy metals into the environment and thus reduce their noxiuosness to people‘s health and their impact on plants. Purpose of work – to determine the pollution of atmosphere by heavy metals, the reduction measures of their impact on people‘s health and the environment. Tasks: 1) to review the pollution of atmosphere by heavy metals; 2) to determine the impact of heavy metals on people‘s health, animals and plants; 3) to describe the legal acts that are regulating protection of the atmosphere; 4) to analyze the pollution of atmosphere by heavy metals in Lithuania; 5) to determine what measures are used for the reduction of atmosphere‘s pollution. Methods of work: the comparisson of documents, statistical data. Results of work: 1. The amounts of heavy metals distribute in the atmosphere unevenly; 2. Heavy metals affect organisms of people and animals negatively; 3. The excess of heavy metals damage the growth of plants and assimilation of other elements; 4. In 2002 the amounts of heavy metals in Lithuania were higher than in 1998 and 1999. The highest allowable concentration was not exceeded not in one town; 5. Society‘s participation in the protection of the environment allows better evaluation of risk factors;