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 'Top Two' Calculator

Only £50 (excl VAT) with online card payment discount.

The LQM 'Top Two' Calculator, used in conjunction with CLEA (Ver. 1.071), quickly and easily identifies the 'Top Two' produce groups for a given contaminant and provides the relevant chemical inputs that you can manually Copy & Paste directly into your CLEA (Ver 1.071) model. The LQM 'Top Two' Calculator provides a quick, robust and defensible justification for selecting the 'Top Two' saving risk assessors time and money when generating C4SL-like assessment criteria.

For more details on the Top Two approach and the LQM Calculator, click here to see a 30min webinar.

Note: Use of the software represents acceptance of the Licence Agreement, which is also contained within the software.  Please review the Licence Agreement prior to use. For organisations with multiple offices, a seperate copy of the software is required for each office. 

Prices and discounts: Prices exclude VAT.  Please note purchase is via online card payment only - a 20% discount will automatically be applied.  Any purchases make via invoice payment will be declined.  Terms and Conditions apply  The calculator will be delivered via email once payment has been received.

£62.50

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In 2014, the SP1010 research project (Defra, 2014), which also derived the initial six 'Category 4 Screening Level' (C4SLs), recommended using the 'Top Two' address with respect to modelling exposure to soil contaminants as part of a human-health risk assessment.  This involves applying 90th percentile consumption rates "for the two homegrown produce groups expected to give the highest exposure" (ie the 'Top Two') and mean consumption rates for the remaining four groups.  A similar approach has historically been recommended for use in radiological risk assessments. 

CLEA (version 1.071) contains the functionality to allow risk assessors to implement the 'Top Two' approach in their human-health risk assessments, but the risk assessor must first identify which are teh 'Top Two' produce groups.  This is not an insignificant task.

The LQM 'Top Two' Calculator, used in conjunction with CLEA (Ver. 1.071), quickly and easily identifies the 'Top Two' produce groups for a given contaminant and provides the relevant chemical inputs that you can manually Copy & Paste directly into your CLEA (Ver 1.071) model. The LQM 'Top Two' Calculator provides a quick, robust and defensible justification for selecting the 'Top Two' saving risk assessors time and money when generating C4SL-like assessment criteria.

For more details on the Top Two approach and the LQM Calculator, click here to see a 30min webinar.

Other related publications, licences and courses

Contaminated Land Management: Ready Reference (Release 2)

Contaminated Land Management: Ready Reference (Release 2)

A compendium of key facts, techniques and considerations relating to the investigation, assessment and management of land contamination and brownfield sites. A "must have" for any contaminated land practioner.

 

KeyCSM Two Hour Online Training

KeyCSM Two Hour Online Training

A two hour one to one online training session on using KeyCSM.

On purchasing the training, you will be contacted by LQM to discuss your level of experience with KeyCSM.

Training can comprise:

  • An instructor led introduction into using the KeyCSM software to represent the sources, pathways and receptors associated with a potentially contaminated site, highlighting the key features of the software.
  • OR a tailored session to take you to the next level.  After showing the instructor how far you have got with understanding KeyCSM, you will be shown additional functionality reflecting your needs.

Training will last for two hours. Additional training sessions can be purchased as required. Up to three delegates from your organisation can attend at one time.

Webinar Recording: Green Remediation

Webinar Recording: Green Remediation

Recording of Professional Practice Webinar exploring ways to specify greener remediation strategies, originally delivered on 13th December 2019 (~53mins).

Webinar Recording: Redeveloping Military Sites

Webinar Recording: Redeveloping Military Sites

Recording of Professional Practice Webinar considering how military sites can be safely developed for the current housing challenge, originally delivered on 27th November 2018 (~90mins).

LQM GIS web-bytes: Viewing your Site Photographs

LQM GIS web-bytes: Viewing your Site Photographs

Recorded demo showing you how to add and view your Site photographs within your QGIS project (12 minutes).