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Handbook for the 1979 Convention on Long-range Transboundary Air Pollution and its Protocols
… a wider array of pollutants including ground-level ozone, persistent organic pollutants, heavy metals and, most … 20 000-40 000h, before replacement of one catalyst layer Note: The above-mentioned methods may be used in … the formation of tropospheric background ozone or to the depletion of stratospheric ozone, or that are toxic or …