Protection of the Environment Operations (Clean Air) Regulation 2022
87Vapour disposal systems
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87 Vapour disposal systems
87 Vapour disposal systems
(1) A vapour disposal system must incinerate the vapour emitted from the large storage tank by a process that prevents the total concentration of unburnt vapour emitted into the atmosphere exceeding—
(a) before 1 July 2027—1.5g as n-propane per cubic metre of the gases resulting from the incineration process, or
(b) on and from 1 July 2027—
(i) for gases originating from material containing a principal toxic air pollutant—20mg as n-propane per cubic metre of the gases resulting from the part of the incineration process that treats air impurities that originate from material containing a principal toxic air pollutant, or
(ii) otherwise—40mg as n-propane per cubic metre of the gases resulting from the part of the incineration process that treats air impurities that originate from material not containing a principal toxic air pollutant.
(2) The total concentration of unburnt vapour must be determined in accordance with TM-34.