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Latest News

Webinar Wednesday's - Free informative 60 minute Webinars for all our clients and industry professionals.

Jul 20, 2021

We are now pleased to offer a variety of free informative 60 minute webinars for our clients and industry professionals. These webinars are created for Environmental consultants, Contractors, Utility companies, Regulators, Environmental technicians, Academia and those with occupations in similar type industries.

1,4-Dioxane – the forgotten emerging contaminant

1,4-dioxane is a contaminant of concern in groundwater particularly at chlorinated solvent release sites.  Although 1,4-dioxane has been the focus of increasing world-wide regulatory attention, it has not been given the same focus in the UK until recently.  This webinar will provide an overview of its occurrence, fate and transport properties and latest research into toxicology.  It will cover best practice approaches for sampling and laboratory analysis.

Host: Geraint Williams - ALS Associate

Date: Wednesday 11th August

Time: 13.30


The benefits of accredited laboratory testing

ISO17025 laboratory accreditation is much more than the development of a documented quality management system. It provides assurance to the end user of and data reported from an accredited laboratory provides assurance on the validity and suitability of test methods, the maintenance and calibration of equipment, the integrity of the results and the competence of the analysts performing the testing.

This webinar will review the benefits to the client in an increasingly regulated and litigious world of having testing work undertaken by an accredited laboratory and provides an answer to the question 'Is accreditation really that important to me?'.

Host: Christopher Caird - Quality Director

Date: Wednesday 18th August

Time: 13.30


Advances in PFAS Analysis

Per- and polyfluoroalkyl substances (PFAS) are present as contaminants of concern on many sites and are extremely persistent, highly mobile and can bioaccumulate. They are increasingly considered a risk to human health and the environment. This webinar will focus on the analytical options available.

PFAS present many challenges for laboratories. They are ubiquitous in the environment but detection limit requirements are very low. Aqueous film-forming foams (AFFF) typically form complex mixtures in soil and groundwater. Polyfluorinated precursors can transform following release. The number of PFAS determined by conventional analyses are limited as analytical standards are not available for these compounds.

The presentation will review common analysis approaches used, as well as providing details of more advanced techniques including Total Oxidisable Precursor (TOP) Assay and Total Organic Fluorine (TOF) analysis. The webinar will also provide guidance on sampling, how to overcome the potential difficulties of cross-contamination at Environmental Quality Standards (EQS) limits and include details of QA/QC requirements.

Host: Geraint Williams - ALS Associate

Date: Wednesday 15th September

Time: 13.30


Good practices in sampling

This webinar will provide an overview of good practices in sampling of soils and waters. It will include details of why preservation is required, sample temperature requirements, holding times and how to avoid deviations. The presentation will highlight latest UK and international guidance and is aimed specifically at early career professionals.

Host: Geraint Williams - ALS Associate

Date: TBC



MALDI-ToF for microbial identification and confirmation

The use of MALDI-ToF mass spectrometry for the identification of microorganisms has proved to be a huge benefit in recent years for laboratories and their customers. The technology had been in use in clinical laboratories for many years, and ALS pioneered its use as a rapid confirmation technique in the UK for environmental, water and food testing. It has been more widely adopted in recent years but what is it? This webinar will review the technique, how it works, how it fits into the testing landscape, what the result means and it’s benefits.

Host: Bjorn Nielsen - Principal Scientist

Date: Wednesday 20th October

Time: 13.30


To register for any of these webinars email the marketing team who will be happy to book your place, please include: Webinar(s) of interest, Name, Company, Position, Email, Telephone to:

If you would like any information about our services then please do not hesitate to contact the Client Services Team who will be happy to assist with your enquiry.