- Local Authorities
- Aberdeen City
- Aberdeenshire
- Angus
- Argyll and Bute
- Edinburgh City
- Glasgow City
- Clackmannanshire
- Dumfries and Galloway
- Dundee City
- East Ayrshire
- East Lothian
- East Dunbartonshire
- East Renfrewshire
- Falkirk
- Fife
- Highland
- Inverclyde
- Midlothian
- Moray
- North Ayrshire
- North Lanarkshire
- Orkney Islands
- Perth and Kinross
- Renfrewshire
- Scottish Borders
- Shetland Islands
- South Ayrshire
- South Lanarkshire
- Stirling
- West Dunbartonshire
- West Lothian
- Western Isles
Local Air Quality Management (LAQM)
LAQM FAQsWhat changes are proposed in the Consultation Draft of TG(08)? How should I make use of information on NO2 diffusion tube precision? Is there a new NOx to NO2 calculator to allow for the increase in primary NO2 from traffic? Is it better to use statistical datasets over 10 years or sequential hourly datasets over 1 or more years? How many years sequential data should be used? How does the assessment of model uncertainty relate to the process of model verification? Is there a new NOx to NO2 calculator to allow for the increase in primary NO2 from traffic? Is there a new NOx to NO2 calculator to allow for the increase in primary NO2 from traffic? How accurate are dispersion models, and how can this uncertainty be quantified? What are the most recent updates/changes to LAQM.TG(03)? What are the most recent updates/changes to LAQM.TG(03)? Does the model automatically take account of background concentrations? How should background data be selected and used? How do the models predict NO2? The updated Technical Guidance Note (LAQM.TG(03)) now requires the screening assessment to be based on the density of coal-burning houses within a 500 x 500m grid. Does this mean that 500 x 500m grid should also be used for an Detailed Assessment work? How should emissions from gas boilers, not subject to LAPC/PPC controls, be considered for the purposes of LAQM reviews and assessments? So how do I calculate an appropriate chimney height to ensure emissions of N0x from small gas boilers controlled by the Clean Air Act do not lead to an exceedence of the Air Quality Strategy’s objective for nitrogen dioxide (N02) prescribed in the Air Quality Regulations 2000, SI No 928? Can I use the Chimney Heights Memorandum to determine the stack height for room-sealed boiler flue systems? What about fan-diluted emissions below roof level? What about furnaces/boilers not subject to controls under the Clean Air Act? What about multiple gas boilers/furnaces which are individually below the Clean Air Act threshold of 366.4 kilowatts and are not served by one single chimney but several separate ones? Under those circumstances, how should we check whether exceedences of the N02 objective is likely or not? If this suggests an exceedence of the N02 objective is likely, what controls should a local authority use to tackle emissions? Is it appropriate to always choose meteorological data from the nearest observing station? Is it better to use statistical datasets over 10 years or sequential hourly datasets over 1 or more years? How many years sequential data should be used? How do models predict NO2 concentrations? Should worst-case input data assumptions be used in the model? Can screening models such as DMRB and GSS be used for the Third Stage review and assessment? How accurate are dispersion models, and how can this uncertainty be quantified? Why does uncertainty arise in dispersion modelling? How should model uncertainty be accounted for within the review and assessment process? Where do errors commonly arise, and what can be done to minimise them? How does the assessment of model uncertainty relate to the process of model verification? Should I adjust the model concentrations? How should predictions against the short-term objectives be carried out - can models accurately predict concentrations over 1 hour or 15 minutes? When predicting short-term concentrations are there any additional precautions that should be taken, particularly where stack emissions are involved? What is the Emission Factors Toolkit? What is the Supplementary Assistance:Chimney Height Calculation Spreadsheet? Site Location - Where should I try to locate my monitors for investigating road traffic emissions? Site Location - Where should I try to locate my monitors for investigating emissions from point sources? Site Location - Once I've identified a suitable area for monitoring, what do I need to take into consideration when locating a specific site? Monitoring Equipment - Can you supply contact details for purchase of air quality monitoring equipment? Monitoring Equipment - What are the recommended methods for making measurements of nitrogen dioxide? Monitoring Equipment - What are the recommended methods for making measurements of sulphur dioxide? Monitoring Equipment - What are the recommended methods for making measurements of PM10 particles? QA/QC - What QA/QC procedures do I need to implement for diffusion tube monitoring? QA/QC - What QA/QC procedures do I need to implement for SO2 bubbler monitoring? QA/QC - What QA/QC procedures do I need to implement for gravimetric PM10 monitoring? QA/QC - What QA/QC procedures do I need to implement for automatic NOx and SO2 monitoring? How long do I need to monitor for? What is the recommended method of monitoring the 15-minute objective for SO2 at Railway Stations? What QA/QC procedures do I need to consider with data management and back-up? If I upgrade my TEOM analyser to a FDMS analyser, or replace it with a FDMS analyser, is it possible to compare the data for the purpose of trend analyses? How to adjust PM10 measurements made with an unheated B-attenuation Analyser so that they are equivalent to gravimetric values on which the objective is based? What has been the outcome of the equivalence tests for Particulate Matter monitoring that has been carried out by Defra and the Devolved Administrations? What are the implications for local authorities?
I have read that the TEOM has failed to meet the EC’s equivalence criteria in recent tests. I am worried that we will have to replace the TEOMs we are using, which would be very expensive. Is this the case? |
