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A.D. Envirotech Australia Pty Ltd - Laboratory
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Voluntary Purchase and Demolition Program for Properties Containing Loose-Fill Asbestos

As was heavily reported by the media in 2015, a company known as Mr Fluffy used raw Amosite and Crocidolite asbestos, known as loose-fill asbestos, as ceiling insulation in some ACT and NSW homes in the 1960s and 1970s. In the 28 identified Local Government Areas (LGAs) where Mr Fluffy operated, the NSW Government is offering free sample testing for loose-fill asbestos to owners of pre-1980s residential properties...

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Soil Vapour Assessment
http://adenvirotech.com.au/soil-vapour-assessment/

Soil vapour assessment is the investigation of volatile contaminants (i.e. substances that easily evaporated at normal temperatures) present in soils, that pose a risk to human health when inhaled.

Volatile contaminants such as petroleum hydrocarbons and chlorinated solvents may be released to the subsurface environment through accidental spills, leaking of underground tanks and unregulated burial of contaminated wastes.

Modern buildings are designed to be energy efficient. This commonly includes a design which reduces air exchanges within the building and removal of a subfloor space to regulate temperature. Receptors within a building are at risk of being exposed to elevated levels of volatile contaminants, from a source which migrates from the subsurface to within a building, accumulating due to the low exchange of air. In addition to accumulation in buildings, volatile chemicals can collect in ambient air, confined spaces and excavations within a site.

Due to this, the correct design of an investigation is vital to undertaking a risk assessment that accurately characterises the actual risk present based on the type of contaminant present and its characteristics, the subsurface environment, migration pathways present and potential receptors within a site.

There are two soil vapour sampling methods, active and passive.

Active sampling involves pumping or extracting a known volume of air from the sample location and collecting either a sample of gas into a TEDLAR Bag SUMMA Canister; or adsorbent media such as a carbon sorbent to. Active sampling methods usually provide results in the form of mass of contaminant per volume of air, as the exact volume of air extracted for analysis is measured.
Passive sampling is based primarily on the principle of diffusion and measures the mass of contaminant that adsorbs to adsorbent media in the sample location over a period of time. Specifically, it involves the installation of an implant into the ground at depth (in the form of an adsorbent media) which would be recovered for analysis after an appropriate period of time (hours, days). When applied to soil gas, passive sampling is a semi-quantitative tool as it cannot provide concentration data, as the specific volume of air to pass through the media is unknown.
Whilst soil vapour can be modelled from groundwater and soil data, it is often overtly conservative. Incorrect or inadequate investigations can lead to an inaccurate determination of the risk present, response to address the perceived hazard including unwarranted engineering controls, delay of program and significant costs.

ADE has extensive experience in conducting soils vapour assessments, and implements a program of investigation which is accurate, efficient and cost-effective. Throughout the assessment process, ADE works closely with its client to ensure they are well informed about the potential hazards present, how to address any data gaps within the site, and the cost of remediation if required.

http://adenvirotech.com.au/soil-vapour-assessment/
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Little is known on the quality of indoor ambient air within our office place, schools and even our own homes. As such, people take for granted that the ambient air that we breathe within our work and home environment is safe.

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Keep cool and reduce carbon!
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If you think asbestos may be in your home, don't panic! Read this: http://goo.gl/Lfcxln

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He's dead serious. you better listen, before it's too late...
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Be the agent of change and save the #earth.
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At A.D. Envirotech were capable of doing #Asbestos, #Air Quality and #Occupational Hygiene Services. Know more about our goals on your company! Visit: http://adenvirotech.com.au/ TODAY!

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Look deep into nature and then you will understand everything better.
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