two-dimensional (paper) chromatography
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- alterant
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- ITF,IPCC Trust Fund
- aromatic
- technological items
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- alkyne
- partially halogenatedb CFC
- automative air conditioning
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- exhaust heat
- aerosol (spray-)can
- ozone reduction
- containment (of solid wastes)
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- higher layers (of the stratosphere)
- Environmental Protection Agency (EPA)
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