To the emergence of the ozone holes can cause emissions during the production process in Asian countries.
Scientists have stated that emissions of short-lived impurities in the production process in Asian countries may lead to the emergence of the ozone holes.
In the study, researchers analyzed the air in Malaysia and Taiwan and found a high content of dichloromethane, a substance which is widely used in small and food industries, as well as for bonding of plastics, and 1,2-dichloroethane, which is used to produce plastic.
Dichloromethane and 1,2-dichloroethane in the air are considered sverhdorogimi atmospheric impurities, which decompose within six months, therefore their emissions are not regulated by the Montreal Protocol.
In addition, researchers found that substances of the studied localities can be transferred to tropical areas in the Western Pacific ocean: there are short-lived impurities can get into the upper troposphere, then the stratosphere, thus leading to the risk of occurrence of ozone holes.
Earlier, Ukrainian scientists said that the Antarctic ozone hole increases the wall that protects the Antarctic from the air of the warm latitudes. Her disappearance might cause warming in Antarctica will go even faster.
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