In 1994, the UN General Assembly announced September 16th the International Day for the Preservation of the Ozone Layer. The Montreal protocol on substances that deplete the ozone layer was signed on this day in 1987. The main aim of the Montreal protocol is to preserve the ozone layer by implementing the measures on restriction of the world production and consumption of substances that deplete it in order to ultimately liquidate them. The protocol controls almost 100 chemical substances in several categories. The schedule of gradual refusal of production and consumption is established for each group of chemical substances in order to ultimately stop using them.
In 1996, productionof chlorofluorocarbons (CFC) was ceased, and hydrochlorofluorocarbons (HCFC) are currently being suspended. The schedule of gradual suspension of HCFC was introduced in 1992 for the developed and developing countries with a moratorium in 2015 and ultimate refusal in 2030 in the developed countries and in 2040 in the developing countries. In 2007, the parties of the Montreal protocol decided to accelerate the schedule of gradual refusal of HCFC for both developing and developed countries.
Press Service of the Ministry of Ecology and Natural Resources of the Republic of Tatarstan