FAQ 41 – Effect of Roadside Barriers
How effective are physical barriers alongside busy roads in reducing pollutant concentration at adjacent areas? There continues to be extensive research undertaken into the effectiveness
How effective are physical barriers alongside busy roads in reducing pollutant concentration at adjacent areas? There continues to be extensive research undertaken into the effectiveness
How do I process short-term NO2 diffusion tube monitoring survey results to obtain an annual mean NO2 concentration estimate? In situations where a short-term diffusion
How do I bias adjust my diffusion tube data if I change supplier and/or preparation method during the course of a year? In situations where
What will happen if a local authority fails to achieve the prescribed objectives in its area? Local authorities will need to demonstrate that they have
None of the screening tools available for stacks (e.g. the HMIP D1 method or the LAQM Emissions Screening Tools) are applicable to my installation due
Where there are multiple boilers/furnaces which are individually below the Clean Air Act threshold of 366.4 kilowatts and are served by several chimneys, how should
How do I calculate chimney height for fan-diluted emissions below roof level? The Chimney Heights Memorandum advises that certain fan-diluted emissions may be discharged at
Can I use the Chimney Heights Memorandum to determine the stack height for room-sealed boiler flue systems? Room-sealed boiler flue systems are occasionally used on
How do I calculate an appropriate chimney height to ensure emissions of nitrogen dioxide (NO2) from small gas boilers controlled by the Clean Air Act
What are the steps and timescales involved in the appraisal process for LAQM/LLAQM Reports? How may a local authority track their reports through the appraisal
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