Sentences with phrase «bromide on the ozone»

The impact of methyl bromide on the ozone layer is unusually severe and rapid.

Not exact matches

Under the Montreal Protocol on Substances that Deplete the Ozone Layer, methyl bromide can only be used for a non-Quarantine and Pre-Shipment application if a critical use exemption has been approved by the Parties to the Montreal Protocol.

In 2004, Looy and her former Ph.D. advisor Henk Visscher proposed one way this might have played out, bases on fossilized abnormal plant spores found worldwide: volcanic gases — halocarbons like methyl chloride and methyl bromide — destroyed much or all of Earth's ozone layer, boosting UV - B exposure that would have affected life and potentially increased the genetic mutation rates in pollen and spores of plants worldwide.

In 1995, concern about the ozone hole prompted a controversial phase - out of methyl bromide, ending in a ban on its use by the year 2005.

In Copenhagen, scientists advised the ministers that banning methyl bromide as a fumigant could have as much effect on the ozone layer as banning CFCs and carbon tetrachloride 3 years earlier than scheduled.

Bromine, the ozone - depleting element found in methyl bromide, is nearly 60 times more effective at destroying ozone than the chlorine found in CFCs.9 This means that even though its atmospheric lifetime is quite short (a little over a year) 31, the immediate impact of changes in methyl bromide emissions on the ozone layer is very high compared to other chemicals.