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.

Locations of visitors to this page

Mailing List

If you would like us to email you updates, such as detail of forthcoming training etc., please subscribe below.


LQM/CIEH Dose Response Roadmaps (DRRs)

DRR logoUnder Part 2A, Local Authorities and their advisors must decide whether sites pose a "significant possibility of significant harm" (SPOSH) before it can be determined as statutory "Contaminated Land".

Despite revised Statutory Guidance in England and Wales, there is no simple definition of what is, or is not, SPOSH. Consequently, the contaminated land community has historically addressed this question using single, subjective and precautionary estimates of what a “minimal risk” dose may be.

However, this approach has little relevance to the wording in Part 2A and ignores the vast quantity of toxicological and epidemiological information that is available for most contaminants.

The LQM/CIEH Dose Response Roadmaps provide a scientific basis for determining if site specific exposure estimates are likely to result in significant harm and therefore simplify decision making under Part 2A across Britain.


Dose-Response Roadmaps (DRR) Briefings

Dose-Response Roadmaps (DRR) Briefings

This series of online briefing webinars is for delegates from licensed and non-licensed organisations (e.g. those undertaking peer reviews of reports using the Dose Response Roadmaps) wishing to:

  • better understand what the Roadmaps are
  • how they can be used
  • how they support decisions under Part 2A
  • complete the first part of becoming a Registered User

In order to complete the DRR Registration Course and become a licensed registered user you will also need to complete an additional practical exercise and attend a live interactive feedback webinar.

Dose-Response Roadmaps (DRR) Registration Course (Licence holders only)

Dose-Response Roadmaps (DRR) Registration Course (Licence holders only)

This option is for delegates from organisations who have a current valid licence only and who wish to become a Regisered User.

This course (recorded webinars followed by an interactive webinar) provides:

  • better understanding of what the Roadmaps are
  • how they can be used
  • how they support decisions under Part 2A
  • understanding of the uses, applicability and interpretation of the Dose Response Roadmaps
  • practical insight into applying the Roadmaps to a (hypothetical) site