HomeLatest ThreadsGreatest ThreadsForums & GroupsMy SubscriptionsMy Posts
DU Home » Latest Threads » Forums & Groups » Main » Latest Breaking News (Forum) » Location of large mystery...

Fri Oct 26, 2018, 02:22 PM

Location of large mystery source of banned ozone depleting substance uncovered

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

16 replies, 4737 views

Reply to this thread

Back to top Alert abuse

Always highlight: 10 newest replies | Replies posted after I mark a forum
Replies to this discussion thread
Arrow 16 replies Author Time Post
Reply Location of large mystery source of banned ozone depleting substance uncovered (Original post)
Calista241 Oct 2018 OP
Honeycombe8 Oct 2018 #1
ROB-ROX Oct 2018 #2
Brother Buzz Oct 2018 #3
DeminPennswoods Oct 2018 #4
Brother Buzz Oct 2018 #5
geardaddy Oct 2018 #7
Hassin Bin Sober Oct 2018 #12
LiberalArkie Oct 2018 #11
Brother Buzz Oct 2018 #13
LiberalArkie Oct 2018 #14
MrQRO Oct 2018 #16
SWBTATTReg Oct 2018 #6
Calista241 Oct 2018 #15
AKing Oct 2018 #8
KT2000 Oct 2018 #9
Maxheader Oct 2018 #10

Response to Calista241 (Original post)

Fri Oct 26, 2018, 02:27 PM

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

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Calista241 (Original post)

Fri Oct 26, 2018, 03:30 PM

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.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to ROB-ROX (Reply #2)

Fri Oct 26, 2018, 03:43 PM

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.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Brother Buzz (Reply #3)

Fri Oct 26, 2018, 03:47 PM

4. Flammable and inflammable are synonyms

for future reference.

Antonyms: nonflammable, non-flammable

Reply to this post

Back to top Alert abuse Link here Permalink


Response to DeminPennswoods (Reply #4)

Fri Oct 26, 2018, 03:56 PM

5. Inflammable means flammable? What a country!

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Brother Buzz (Reply #5)

Fri Oct 26, 2018, 05:16 PM

7. I remember that episode.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Brother Buzz (Reply #5)

Fri Oct 26, 2018, 07:18 PM

12. Lol

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Brother Buzz (Reply #3)

Fri Oct 26, 2018, 07:17 PM

11. It was fantastic on the bench during repairs.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to LiberalArkie (Reply #11)

Fri Oct 26, 2018, 07:20 PM

13. And radio shacks didn't burn up

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

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Brother Buzz (Reply #13)

Fri Oct 26, 2018, 07:43 PM

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

Reply to this post

Back to top Alert abuse Link here Permalink


Response to LiberalArkie (Reply #11)

Fri Oct 26, 2018, 11:41 PM

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!

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Calista241 (Original post)

Fri Oct 26, 2018, 04:06 PM

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.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to SWBTATTReg (Reply #6)

Fri Oct 26, 2018, 08:35 PM

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.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Calista241 (Original post)

Fri Oct 26, 2018, 05:24 PM

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

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Calista241 (Original post)

Fri Oct 26, 2018, 06:15 PM

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.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Calista241 (Original post)

Fri Oct 26, 2018, 06:26 PM

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.

Reply to this post

Back to top Alert abuse Link here Permalink

Reply to this thread