LQM is a specialist environmental consultancy based in Nottingham (UK) with an international reputation for assessing and managing the risks posed to human health and the environment by contaminants in soil. Increasingly this is being done within a context of sustainable development and specifically sustainable brownfield regeneration.

We provide consultancy, peer review and expert witness services, contract research and training courses on all aspects of the management of land contamination to problem holders, developers and local government.

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LQM GIS web-bytes: Site Zoning Using Risk Assessment Criteria

Part of the LQM series of recorded demos using the free and open source QGIS software developed primarily for contaminated land practitioners.

Learn how to delineate different landuse zones across your site contaminant datasets by applying relevant human health risk asssessment criteria to help you understand or communicate the potential risks or development constraints at your sites.

This short (18 minute) QGIS demonstration clearly shows you how to import your site investigation dataset, combine it with your risk assessment criteria and generate new attributes to help you define your landuse zones quickly using a range of processing algorithms within QGIS.

Require interactive face-to-face hands-on tuition to help you solve your contaminated land problems using QGIS?

LQM provide a range of courses from complete beginners (QGIS1) through to intermediate and more advanced GIS users (QGIS2 and QGIS3).

Prices and discounts: £25 (inclusive of VAT ) purchase via online card payment only (20% card discount will be automatically applied). Any purchases made via invoice payment will be declined.  Terms and Conditions apply 

Link to recorded demo emailed once payment has been received.


  • Content
  • Citation

This demo covers:

  • how to import your site investigation data into your QGIS project
  • combining landuse risk assessment criteria with your SI data
  • generating new fields which can be used to delineate landuse zones or convey information
  • a number of QGIS processsing algoirthms useful to your GIS work

At the end of the demo, you will:

  • be able to better understand potential risks at your site
  • more effectively visualise data and communicate information about your site
  • better understand some of the powerful features QGIS has to offer

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