Location of large mystery source of banned ozone depleting substance uncovered

[Calista241]

Source: Phys.org

The compound, carbon tetrachloride, contributes to the destruction of the Earth's ozone layer, which protects us from harmful ultraviolet radiation.

As a result, the production of carbon tetrachloride has been banned throughout the world since 2010 for uses that will result in its release to the atmosphere. However, recent studies have shown that global emissions have not declined as expected, with about 40,000 tonnes still being emitted each year.

The origin of these emissions has puzzled researchers for many years.

...

Their results, published in the journal Geophysical Research Letters, show that around half of the 'missing' global emissions of carbon tetrachloride originated from eastern China between 2009 and 2016.

Read more: https://phys.org/news/2018-10-large-mystery-source-ozone-depleting.html

[Honeycombe8]

1. Well, well, well. I'm not surprised. nt

[ROB-ROX]

2. In chemistry this is used as a "wash" chemical to rinse chemicals (make powered fall out of liquids.

This liquid is SUPER toxic. It can be used to recover many different industrial made chemicals. I see this as a pharmacy making chemical. This stuff does evaporate super fast if not managed correctly.

[Brother Buzz]

3. In electronics, it was the go-to cleaner back in the day....

because it was not flammable. Or was in inflammable? The radio geeks could never sort it out.

[DeminPennswoods]

4. Flammable and inflammable are synonyms

for future reference.

Antonyms: nonflammable, non-flammable

[Brother Buzz]

5. Inflammable means flammable? What a country!

[geardaddy]

7. I remember that episode.

[Hassin Bin Sober]

12. Lol

[LiberalArkie]

11. It was fantastic on the bench during repairs.

[Brother Buzz]

13. And radio shacks didn't burn up

or did they burn down. Sparky could never riddle that one.

[LiberalArkie]

14. I don't know, although it did make a mighty fire extinguisher

[MrQRO]

16. I wasn't going to say anything....

But, Yes it was an amazing cleaner and solvent!
Back in my telco days we literally used it by the gallons!

Too bad it was so awful for the environment...
All the really good stuff was!

[SWBTATTReg]

6. This is disappointing because the chinese know of the dangers of this chemical and its ...

effect on the atmosphere. Very disappointing. I expected more from them.

[Calista241]

15. I kindof suspect the Chinese gov't didn't know about it.

Once they do figure it out, some business people will be in jail and others may be retired permanently.

[AKing]

8. Dry Cleaners used it for years. I also remember it being packaged for home use as spot remover.

[KT2000]

9. I used it in the 70's

when I worked for a drapery manufacturer. It was banned for use then, which I did not know. I guess I was using up the stock. I would get dizzy so I had to hang my head of an open window to recover. Also the palms of my hand would turn white. I asked for gloves but they refused so I brought my own. They melted.

Don't trust China - my friend from China refuses to buy any food processed in China. She knows.

[Maxheader]

10. Bought a new ac last spring to eliminate using R22..

Air Conditioning Costs and the banning of R22. From 2015, it will be illegal to use Hydrochlorofluorocarbons (HCFCs), including the ozone-depleting refrigerant gas R22, in refrigeration, heat pump and air conditioning (AC) systems.