69. The electrolytic production of aluminum is one of the most environmentally harmful, since extremely dangerous fluorine gas is released during electrolysis (40 kg per 1 ton of aluminum). Only 35% of the released fluorine can be captured in air-cleaning plants, and the rest is dissipated in the environment. Calculate the minimum forest plantation area around a small workshop with a capacity of 100 tons of aluminum per year, taking into account the fact that vegetation located on one hectare of forest park absorbs 40 kg of fluorine per year.

If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.