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The potentially dangerous chemical compounds and elements, e.g. selenium and arsenic in relatively high concentrations can cause harmful influence on the environment (irreversible changes). The fate of selenium and arsenic must be followed in the soil-pla
The potentially dangerous chemical compounds and elements, e.g. selenium and arsenic in relatively high concentrations can cause potentially affecting on the environment (irreversible changes). The fate of selenium and arsenic must be followed in the soil-pla