Environmental News

The V-Lux: Multi-parameter fluorometer configured to detect either Algae, Aromatic Hydrocarbons or Tryptophan-like fluorescence will be on show at WWEM

Chelsea are exhibiting at WWEM 2018  21-22 Nov 2018, Telford, UK. On display will be their range of on-line & portable water quality monitoring systems. Addressing the management of both water supply and water recovery plants, these systems will also be of particular interest to the environmental monitoring sectors addressing the requirements of the Bathing Waters Directive, Water Framework Directive and Shellfish Waters Directive. Also on display will be the new V-Lux multi-parameter fluorometer configured to provide high quality in situ detection of either Algae, Aromatic Hydrocarbons or Tryptophan-like fluorescence.


Leading subsea technology developer Sonardyne International Ltd. has acquired maritime and marine science technology specialist Chelsea Technologies Group Ltd. The acquisition is part of a long-term growth strategy for Sonardyne, to diversify into markets where it sees an opportunity to build on its core technology base and expertise in underwater acoustic and optical communications, navigation and autonomous monitoring systems. In acquiring Chelsea (also known as CTG), Sonardyne will both strengthen its presence in the maritime, marine and ocean science sectors and create new opportunities in the water environmental, defence and process control markets. Chelsea will gain access to Sonardyne’s considerable research, production, testing, compliance and global distribution capabilities, allowing the company to access many more international territories.

More CTG UviLux BOD Sensors for San Diego

Chelsea Technologies Group (CTG) has recently delivered further UviLux BOD Sensors to the City of San Diego Environmental Monitoring & Technical Services for use in the City’s Ocean Monitoring Program. Specifically, the sensors are part of a joint long term monitoring programme to which both the City of San Diego and Scripps Institution of Oceanography (University of California San Diego) are participating in.  An initial supply of CTG BOD sensors was undertaken in 2015, with the latest sensors being targeted for monitoring the South Bay Ocean Outfall (SBOO) or Point Loma Ocean Outfall (PLOO). All BOD Sensors were supplied with flow through manifolds for mooring application.

Leaders in environmental consulting @PLANCTON_ANDINO (Chile) have been using a @Chelsea_CTG  Act2 #frrf3 to monitor red tides as part of the Bivalve Molluscs Health Program.

Leading environmental consultants Plancton Andino SpA (Chile) are using a CTG FastAct Laboratory FRRf System to monitor red tides as part of the Bivalve Molluscs Health Program.

Chile is the world’s fourth largest producer of mussels and the health of the mussels is of paramount importance to the economy. These “red tides” or Harmful algal blooms (HABs) are natural events occurring around the world. Since first being reported in Chile in 1972 in the Strait of Magellan these HAB have increased in both frequency and geographic coverage.

Reducing Aquaculture Die-offs, in Real-Time

Last year, Atlantic Sapphire lost 250 tonnes of salmon in a mass die-off due to hydrogen sulphide poisoning from accumulated organic matter, an all-too-common problem in aquaculture with significant economic losses. Growing salmon in land-based tanks in which water is continuously circulated can cause sporadic toxic microorganism outbreaks that cause costly mass fish stock die-offs. Trials have began, using the CTG BACTI-Wader Pro, with the aim of providing a real-time alert system, that gives enough warning time for operators to respond and avoid a potential toxic bacteria outbreak.

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