Table 1.

Selected metals and industrial sources of their emission to the environment

Metals	Industrial branches
Cadmium (Cd)	Electroplating, production of dyes, batteries, accumulators, paints and plastics, polymer stabilizers, chemical industry, graphic and printing plants
Lead (Pb)	Production of dyes, accumulators, batteries, fertilizers, energy and electrochemical industry
Chromium (Cr)	Galvanizing, tanning and textile industry, dyes and plastics production, wood impregnation, printing and graphic plants
Copper (Cu)	Metallurgy, dyes and textile industries, production of plant protection products and fertilizers
Mercury (Hg)	Production of batteries, phosphoric acid, caustic soda, pulp mills, production of plant protection products
Nickel (Ni)	Galvanizing industry, paper industry, fertilizer factories
Zinc (Zn)	Production of batteries, paints, plastics, polymer stabilizers, textile industry, printing and graphic plants