Hazardous materials are substances which can endanger or damage in certain concentrations (amounts) people, animals, environment and real values. These materials can be existent firmly, liquidly, gaseous or also in the form of radiation. Appearance of hazardous materials Different transport ways (streets, rails, water, air) Storage, manufacturing, processing in buildings and mills During fires as a result of the combustion (pyrolyse products) Hospitals, indoor swimming pools, collecting points of problematic goods Agriculture Chemical materials Caustic materials Develop a direct irritation and caustic impact on eyes, skin and tissues of humans and animals. Acids and bases (heavy caustic materials) Cause corrosions of the eyes, the skin and the respiratory system as well as destroy clothes and equipment. Materials which are harmful to the environment Damage depending on their character and effect plants, soil, ground water and bodies of water. Poisonous materials