Just like the Montreal Protocol that phased out methyl chloroform
(CFCs), this amendment (called the Kigali Amendment) to the Montreal Protocol is legally binding.
--Chemical industry that could damage the environment such as Penta chlorophenol, DDT, Dieldrin, chlordane, carbon tetra chloride, CFC, methyl bromide, methyl chloroform
, halon, etc.
The Montreal Protocol stipulates that the production and consumption of compounds that deplete ozone in the stratosphere - chlorofluorocarbons (CFCs), halons, carbon tetrachloride, and methyl chloroform
- are to be phased out by 2000 (2005 for methyl chloroform
The main factor contributing to the chlorine turnaround was a reduction in the emissions of methyl chloroform
, a cleaning solvent.
In its review of flexible polyurethane foam production facilities throughout the country, the EPA found that this industry sector emits the following hazardous air pollutants: methylene chloride, 2,4-toluene diisocyanate, methyl chloroform
, methylene diphenyl diisocyanate, propylene oxide, diethanolamine, methyl ethyl ketone, methanol, and toluene.
The downward trend is dominated by methyl chloroform
, a relatively short-lived chemical that is expected to vanish from the atmosphere within a decade or so.
* Original Clean Air Act amended; provisions included in Title 6 call for total phase-out of Class I chemicals, including CFCs, carbon tetrachloride and methyl chloroform
Also being eliminated are three other sources of damage to the ozone: hydrobrominated fluorocarbons, methyl chloroform
and carbon tetrachloride (They've all got to go by 1996, just like CFCs).
These include CFCs and methyl chloroform
. All of these products are due to be phased out under a series of international environmental accords.