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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Archive: Apr 2015

  1. Synergie Training host LQM courses in Scotland

    After a number of years of absence, LQM are pleased to announce a return to training north of the border.  Our new partner, Synergie Training, will initially be playing host to our “One-day Introduction to Contaminated Land Management” course in Glasgow on the 30th June 2015.  This course is an intensive overview of UK legislation and guidance and the management process designed to promote the cost-effective identification, characterisation and remediation of land affected by contamination, and is suitable for anyone seeking an overview of the entire land contamination management process.  To book click here.

    Synergie have a recognised track record in providing training support to the Construction and Civil Engineering sectors and Local Authorities in Scotland.  We hope that this will lead to a regular contribution to their training programme – making our ever popular Land Contamination Courses delivered in Nottingham readily and cost-effectively available to those in Scotland and the north of England.

  2. Second Annual Meeting of the NanoRem project

    In April, three of the LQM team (Andy Gillett, Judith Nathanail and Paul Nathanail) travelled to Barcelona for the second annual meeting of the NANOREM project.

    This year there has been lots of progress:

    • New variants of particles have been created to optimise transport;
    • Numerous laboratory experiment have been carried out and show how adding stabilisers such as CMC can increase mobility;
    • Large scale tank experiments have been set up to allow investigation of fate and transport at a larger scale;
    • There have been injections of nanoparticles at two demonstration sites, where early results show that the nanoparticles are moving in the subsurface.  Ongoing monitoring will show how the nanoparticles impact the contamination.
    nZVI injection well in operation in Switzerland

    nZVI injection well in operation in Switzerland

    In addition, modellers are working on understanding nanoparticle transport, and ecotoxicity tests are being carried out.  LQM are looking forward to more results to feed into an improved version of our predeployment risk assessment, which is designed to assess the possibility that nanoparticles used in groundwater risk assessment could impacting the wider environment.

    Prior to the meeting, Judith Nathanail had visited one of the project demonstration sites in Switzerland, where milled zero-valent iron nanoparticles (nZVI) were being injected to treat PCE contamination within groundwater. The photo shows the injection rod with integral packer (the black section) being inserted into an injection well.  Once at the correct depth, the packer was inflated allowing the nZVI to be injected at selected depths within the well.

     

  3. LQM facilitate Ciria Asbestos in Soil Masterclass

     

    LQM’s Dr Richard Ogden provided a introductory framework for expert presentations by Jane Tierney (IOM) and Steve Clark (IOM) at the Ciria’s Asbestos in Soil Masterclass in Edinburgh last week.  This was the first in a series of 5 events looking in detail at specific areas in relation to the investigation, analysis, assessment and remediation of asbestos-containing soils.  This first masterclass, presented by the Institute of Occupational Medicine (IOM), focussed on the analysis of asbestos-containing soils and how environmental air monitoring requirements and methods differ from those commonly used to demonstrate CAR-compliance.

    Steve Clark provided an excellent description the how to quantify asbestos in soil based on the current draft “blue book” method currently under development by the Standing Committee of Analysts and provided personal insight in to strengths and weaknesses of the various stages in the analysis.  Jane Tierney followed this with a discussion of the requirements of environmental air monitoring (compared to the CAR-compliance monitoring commonly available in the UK) including the lower LoD/LoQ required and the need for fibre discrimination and the considerations needed to develop an appropriate monitoring strategy.  Steve Clark subsequently discussed the pros and cons of polarised light microscopy (PLM), Phase-contrast optical microscopy (PCOM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) for the analysis of both soil and air samples. This included a discussion of the LOD/LOQ achievable and the ability of each method to discriminate between asbestos and non-asbestos fibres.  This thoroughly informative day was concluded with a chance to visit IOM’s asbestos analysis laboratory and see the various facilities and microscopes discussed in earlier lectures.

    The event was attended by over 15 delegates representing local authorities and consultants/analysts from both the asbestos and contaminated land industries.  It provided an excellent opportunity to network and sparked many relevant technical discussions.  Informal feedback suggested everyone found it informative and worth while in trying to deal with the difficult issue of asbestos-containing soils.

    Future events in this series from Ciria include: