A study showed: China continues to use Banned Ozone-Depleting CFC.

A study showed: China continues to use Banned Ozone-Depleting CFC.

May 28, 2019.

Today is the World of modernization, every country wants to raise their economy and for this purpose, they do not hesitate to beyond the limits set by the environment experts for the safety of our Mother Nature. China is one of these countries who is breaking the rules set in the international treaty. Scientists have said that industries in north-eastern China have released large quantities of an ozone-depleting gas into the atmosphere in violation of an international treaty.

According to a report in peer-reviewed journal Nature, Since 2013, annual emissions of the banned chemical Chlorofluorocarbon-11 (CFC-11) have increased by about 7,000 tonnes from that region. Sunyoung Park, a co-lead author, from Kyungpook National University in South Korea said, in China, “Our measurements showed ‘spikes’ in pollution when air arrived from industrialized areas.”

The 1987 Montreal Protocol banned CFCs and other industrial aerosols that chemically dissolve protective ozone 10-40km (six to 25 miles) above Earth’s surface, especially over Antarctica and Australia. CFC-11 was widely used in the 1970s and 1980s as a refrigerant and to make foam insulation.

Luke Western, a post-doctoral researcher at the University of Bristol, added, “We didn’t find evidence of increased emissions from Japan, the Korean peninsula or any other country.” “CFCs are the main culprit in depletion of the stratospheric ozone layer, which protects us from the sun’s ultraviolet radiation,” said Matt Rigby, a lead author, an atmospheric chemist at the University of Bristol.

New findings by an international team of researchers confirmed about the suspected region and claimed that emissions of ozone layer harming gas are coming from eastern China, primarily from its two heavily industrialized provinces namely Shandong province and Hebei province. These two provinces originate between 40% and 60 % of total global CFC-11 emissions from Eastern China.

Environmental Investigation Agency collected report last year which blamed Chinese foam factories in the coastal province of Shandong and the inland province of Hebei, which surrounds Beijing. To probe further, an international team of atmospheric scientists gathered additional data from monitoring stations in Japan and Taiwan.

Scientists warn that pouring more CFC-11 into the air could also delay ozone levels from returning to normal levels. Paul Fraser, an honorary fellow the CSIRO Climate Science Centre in Australia said, “If emissions do not decline, it will delay the recovery of the Antarctic ozone hole, possibly for decades.”

About a quarter of all chlorine, the chemical that triggers the breakdown of ozone, reaching the stratosphere still contributed by CFC-11 which continued to persist in the atmosphere for about half a century. Two decades ago, CFCs – more potent by far as greenhouse gases than carbon dioxide or methane – accounted for about 10% of human-induced global warming.

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