Contaminants

Situ Solidification (ISS) has become increasingly accepted for organic contaminants over the past 20 years, including LNAPL and DNAPL. However, practitioners still experience resistance to ISS as a remedial approach, in part due to perception that contaminant mass remains in place. This...

This webinar will provide an overview of the uses and potential benefits of non-invasive geophysical survey methodologies in Acid Mine Drainage (AMD) assessment programs. Large mining companies and some environmental consultancies have in-house geophysicists. However, most mid-size and smaller...

Manufactured chemicals and industrial by-products present challenges for professionals working on contaminated land projects. The range of compounds, behaviours and effects requires tailored approaches to identification and interpretation. One of those chemical groups is polychlorinated biphenyls....

The assessment of exposure to petroleum hydrocarbons includes the evaluation of total recoverable hydrocarbons (TRH) or total petroleum hydrocarbons (TPH). Guidelines established for the assessment of TRH are based on mixtures of petroleum hydrocarbons, with the NEPM Health Screening Levels (HSLs)...

Site managers have a broad spectrum of molecular biological tools (MBTs) and advanced analytical techniques at their disposal to comprehensively evaluate treatment options and performance.  With the rate of advances in the analysis of DNA and in some cases the adaptation of laboratory techniques...

Jaye’s talk will explore how your choice of beverage container may affect your health. Learn about the widespread presence of endocrine disrupting chemicals (EDCs) in different packaging materials, from glass to metal. Discover the first findings of bisphenol A (BPA) isomers in drinks and find out...

Date: 29/02/2024 Decision making can be challenging with hundreds of thousands of chemicals on the global market. There are around 40,000 industrial chemicals on the Australian inventory and as much as 350,000 in use globally. The sheer size of these numbers yet sparse information sources has...

“Reports that say that something hasn't happened are always interesting to me, because as we know, there are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns – the...

This session will explore different conceptual site models for vapour Intrusion and various techniques for assessment of the VI pathway.  We will review challenges with VI assessment such as spatial and temporal variability and background sources and how to over come these challenges. In addition,...

At the recent 2019 EcoForum in Auckland, Tim Muller from Landpro was able to catch up with visiting keynote speaker Frank Ehrenfeld who is from the International Asbestos Testing Laboratories. The interview covered: · The ‘amphibole hypothesis’ of asbestos toxicology and why this is...

In November 2019 WA Department of Health released a Consultation Draft for the Guidelines for the Assessment, Remediation and Management of Asbestos-Contaminated Sites in Western Australia. This presentation will examine the key changes to on-site characterisation and analysis, and how these may...

Australia has general guidance on vapour intrusion and more specific guidance on assessing vapour intrusion into buildings for petroleum hydrocarbons. However Australian does not have specific guidance for chlorinated hydrocarbons. Most of the guidance for petroleum hydrocarbons also applies to...

Fire-fighting activities using aqueous film-forming foams (AFFFs) have caused widespread contamination of per-, and polyfluoroalkyl substances (PFAS) in the environment. Because polyfluoroalkyl substances account for a significant portion in AFFF formulations, understanding the transformation of...

This session will provide a great snapshot of the latest understanding of how PFAS exposure may result in health effects. Dr Ducatman was involved in the large epidemiological study undertaken around one of the PFAS manufacturing sites in the US – the C8 Health Project – which looked at more than...

PFAS is a group of contaminants for which the picture is complex in terms of occurrence, composition, tools for risk assessment and remedial actions. In this work a comprehensive characterization of PFAS in five AFFF polluted soils was performed. This included known “regular” PFAS (34), a range of...