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Latest NewsThe openair projectPublished Date: 20/05/2009
The Institute for Transport Studies at the University of Leeds is pleased to announce the launch of the openair project. The 3-year openair project is funded by the Natural Environment Research Council (NERC) with additional funding from Defra, AEA and several local authorities.
The project aims to make innovative, open-source data analysis tools available for free to the air quality community. These tools are designed for the analysis of air pollution data and dispersion model output. The underlying theme of the project is that considerably more useful information can be gleaned from air quality data using tools specifically designed for the purpose than is usually the case. As such, the tools should have wide appeal from central and local government, consultancies, regulators and university researchers. Many of these tools would normally require specialist visualisation or statistical software but have been made available in the highly developed open-source statistical software called R.
The website at http://www.openair-project.org provides more details on the project and a pre-release version of the openair “package” that users can test ahead of its final release in October 2011. The project will be continuously developed over the next few years and we are keen to receive user feedback to ensure the tools are of maximum benefit to the community.
AEA and ITS are working to apply these tools to AURN data presented on the AQ Archive. This will allow web users a greater range of functionality, visualisation and analysis when interrogating the national network measurements.
Contact: David Carslaw (d.c.carslaw@its.leeds.ac.uk)
Update to the VCM web portalPublished Date: 06/05/2009
A small error in the model equation has been identified and was corrected on 28th April 2009. This error concerned the temperature and pressure correction applied to the reported TEOM concentrations. This resulted in an underestimation of the TEOMVCM concentration of approximately 4% at background locations; an analysis of the impact of this error on the 2007 AURN measurements can be seen here.
Concentrations calculated using the VCM before this date should therefore be recalculated. To help with this process the correction xls spreadsheets that have been generated using the VCM Web Portal have been regenerated and can be downloaded from www.volatile-correction-model.info/FinishedCorrections.aspx
Unfortunately, the details for all the corrections made are not available to us, specifically, if you made more than one correction in a visit to the web portal then only the last correction made will have been saved. We apologise for the inconvenience caused. This error affects the application of the VCM to TEOM measurements through the VCM web portal. It does not affect the underlying basis of the VCM and its proven equivalence to the EU reference method.
Widespread Increase in Particulate Concentrations 17th – 21st March 2009Published Date: 20/04/2009, by Paul Willis
Analysis of this recent air pollution episode is provided in the following short report.
Download here (313 KB pdf)
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Welcome to the
Air Quality in Northern Ireland Web Site!Air Pollution SummaryAir Pollution in Northern Ireland is currently: LOW - Index 2
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This site helps you find information and data on air
pollution in Northern Ireland and related air quality issues.
Click on a monitoring site on the left for latest data, graphs,
photograps and site information.
For more general information
on air quality in Northern Ireland, including Policy, Standards,
Impacts and Monitoring, click the Air Quality menu button above.
To download both automatic and non-automatic air
quality data click the Data menu button above and follow the on-screen instructions.
For access to reseach reports in pdf format click the Reports menu button above. The most recently published reports are also listed below.
For information of Air Quality Management Areas, Smoke Control Zones and other Local Air Quality Management issues click the LAQM menu button above.
For links to other relevant air quality web sites click the Links menu button above. |
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Low - Index 1 to 3
Moderate - Index 4 to 6
High - Index 7 to 9
Very High - Index 10
No Data
New! 