By implementing a noise and vibration monitoring system, the impact of construction site activities can be managed by: Complying with legal requirements relating to public health sanctioning the absence of appropriate precautions to limit abnormally high levels of noise and vibrations. Taking environmental quality considerations into account (HQE approach). Limiting noise and vibration pollution with the comfort of neighbouring residents in mind. Enabling companies in the public works and construction industry to adopt a transparent approach to communication with local residents, in order to avoid resistance and instead gain their support for a given project. Providing the site manager with reliable and official data, should it be required. 01dB offers solutions for construction professionals to suit the requirements of each building site. It provides them with metrological systems (such as the certified DUO sound level meter, dB4 and MR2002) with 01dB WebMonitoring services to ensure optimal control of noise & vibration impact of the construction work, using as well communication tools intended for the general public.
By ACOEM based in Limonest, FRANCE.
Monitoring VOCs in porewater in the unsaturated zone is now possible.
Sorbisense regularly offers new options for using the patented Sorbicell, which is used to monitor surface water, wastewater and groundwater.
The latest is almost as “ground-breaking” as the SorbiCell itself. Until now it has been difficult, if not impossible, to directly monitor for volatile substances in pore water in the unsaturated zone. But the environmental consultancy firm Ejlskov A/S in Aarhus combined the use of Sorbisense sampling equipment with the proven technology of soil water samplers. With this combination, a practical new method is made available, which allows for monitoring the presence of porewater-dissolved VOCs above the groundwater table. This provides a significantly improved basis to define and determine the leaching risk to the groundwater, and thus allows for better and more cost-efficient decisions to prevent the pollution in reaching the groundwater.
A simple construction with multiple options
The application uses SorbiCell VOC combined with suction cells, soil water samplers. When installed correctly, and applied with the correct procedures, the suctions cells extract capillary bound water from the soil matrix. The system demands no other resource than a container that is put under vacuum. The vacuum in the container then ensures a flow through of the Sorbicell over a period of time, fx. 2-3 weeks. The method is highly suitable for monitoring a site over longer periods of time.
By SORBISENSE based in Tjele, DENMARK.
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