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      Applying quality assurance procedures to environmental monitoring data: a case study.

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          Abstract

          Managing data in the context of environmental monitoring is associated with a number of particular difficulties. These can be broadly split into issues originating from the inherent heterogeneity of the parameters sampled, problems related to the long time scale of most monitoring programmes and situations that arise when attempting to maximise cost-effectiveness. The complexity of environmental systems is reflected in the considerable effort and cost required to collect good quality data describing the influencing factors that can improve our understanding of the interrelationships and allow us to draw conclusions about how changes will affect the systems. The resulting information is also frequently elaborate, costly and irreplaceable. Since the quality of the results obtained from analysing the data can only be as good as the data, proper management practices should be considered at all stages of the monitoring activity, if the value of the information is to be properly exploited. Using a Quality Assurance system can aid considerably in improving the overall quality of a database, and good metadata will help in the interpretation of the results. The benefits of implementing Quality Assurance principles to project management and data validation are demonstrated for the information collected for the long-term monitoring of the effects of air pollution on the forest environment under Forest Focus. However, there are limits in the ability of any computer system to detect erroneous or poor quality data, and the best approach is to minimise errors at the collection phase of the project as far as possible.

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          Author and article information

          Journal
          J Environ Monit
          Journal of environmental monitoring : JEM
          Royal Society of Chemistry (RSC)
          1464-0333
          1464-0325
          Apr 2009
          : 11
          : 4
          Affiliations
          [1 ] European Commission Joint Research Centre, Institute for Environment and Sustainability, Land Management and Natural Hazards Unit, Via Fermi, Ispra, VA I-21027, Italy. tracy.durrant@jrc.it
          Article
          10.1039/b818274b
          19557229
          8b3991e9-966d-44be-861d-19cfcac98a56
          History

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