Implications Of The UK National Air Quality Strategy For Major Stationary Sources

摘要

This paper suggests some ideas that should assist any local authority, which lies in the neighbourhood of a major stationary source, to undertake a Stage 3 Review and Assessment. Based on studies of power stations undertaken by TXU Europe Generation (formerly Eastern Generation), Realistic scenarios of future sulphur dioxide emission are discussed. For coal-fired power stations for which the 15 minute average SO_2 concentration is the key objective to be met, it is shown that by using dispersion models a local zone of influence around a source can be defined. Only areas within this zone may be influenced by the source and this simplifies the analysis that needs to be undertaken. An example, using Rugeley Power Station, is demonstrated and the power station is shown not to exceed the 15 minute SO_2 objective. Similar conclusions may be drawn for other coal-fired power stations for which a detailed analysis has been undertaken by TXU. It is argued that fumigation episodes, which are not treated by conventional dispersion models, would not change this conclusion.