Page 106 - GRIHA Manual Volume IV - Introduction to National Rating System
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Building planning and construction 97
CRIteRIon 27
MInIMIze ozone
depletInG substAnCes
Introduction
Substances containing chlorine (or bromine) contribute to the breakdown of ozone layers
in the stratosphere, resulting in harmful UV radiation reaching the earth’s surface. This
contributes to the global climate change. Such substances are mainly used in refrigerating and
air-conditioning equipment, fire suppression systems and extinguishers, and in insulation.
Therefore, continued efforts are being made globally (in the form of international agreements) to
minimize the use of ozone-depleting substances, and gradually to replace them with environment-
friendly substances.
Ozone depleting substances include
l Chlorofluorocarbons (CFCs)
l Halon
l Carbon tetrachloride, methyl chloroform
l Hydrobromofluorocarbons (HBFCs)
l Hydrochlorofluorocarbons (HCFCs)
l Methyl bromide
l Bromochloromethane (BCM)
India being a party to the Montreal Protocol and its amendments needs to phase out the Ozone
Depleting Substances (ODS) including HCFC as per the reduction schedule specified in the Protocol.
In light of the same, use of CFCs (CFC-11, CFC-12, and CFC-113a) and halons has been phased out in
2008. The use of HCFC is supposed to be phased out completely by 2030.
In India, a total of 157 enterprises for commercial refrigeration have phased out 593 MT of CFC-11
and 258 MT of CFC-12. In transport refrigeration, 39 enterprises have phased out 138 MT of CFC. 1
Various new technologies have been adopted in place of halons for fire fighting purposes. Use
of ABC powder, aqueous systems, CO based systems, and foam-based systems have now been
2
adopted for use in fire fighting equipment. Halon production has been completely phased out in
India now.
Solution
It is recommended that insulation with zero Ozone Depleting Potential (ODP), refrigeration, and air-
conditioning equipment free of CFC, fire extinguishers and fire suppressant free of halons should
be used in green buildings.
1 Source MOEF Report
CRIteRIon 27
MInIMIze ozone
depletInG substAnCes
Introduction
Substances containing chlorine (or bromine) contribute to the breakdown of ozone layers
in the stratosphere, resulting in harmful UV radiation reaching the earth’s surface. This
contributes to the global climate change. Such substances are mainly used in refrigerating and
air-conditioning equipment, fire suppression systems and extinguishers, and in insulation.
Therefore, continued efforts are being made globally (in the form of international agreements) to
minimize the use of ozone-depleting substances, and gradually to replace them with environment-
friendly substances.
Ozone depleting substances include
l Chlorofluorocarbons (CFCs)
l Halon
l Carbon tetrachloride, methyl chloroform
l Hydrobromofluorocarbons (HBFCs)
l Hydrochlorofluorocarbons (HCFCs)
l Methyl bromide
l Bromochloromethane (BCM)
India being a party to the Montreal Protocol and its amendments needs to phase out the Ozone
Depleting Substances (ODS) including HCFC as per the reduction schedule specified in the Protocol.
In light of the same, use of CFCs (CFC-11, CFC-12, and CFC-113a) and halons has been phased out in
2008. The use of HCFC is supposed to be phased out completely by 2030.
In India, a total of 157 enterprises for commercial refrigeration have phased out 593 MT of CFC-11
and 258 MT of CFC-12. In transport refrigeration, 39 enterprises have phased out 138 MT of CFC. 1
Various new technologies have been adopted in place of halons for fire fighting purposes. Use
of ABC powder, aqueous systems, CO based systems, and foam-based systems have now been
2
adopted for use in fire fighting equipment. Halon production has been completely phased out in
India now.
Solution
It is recommended that insulation with zero Ozone Depleting Potential (ODP), refrigeration, and air-
conditioning equipment free of CFC, fire extinguishers and fire suppressant free of halons should
be used in green buildings.
1 Source MOEF Report
