Water pollution Monitoring

Remote, in-situ Total Phosporus Measurements

Phosphorus and nitrogen (in the form of phosphates, nitrates and nitrites) are the main cause of water pollution affecting the quality of our drinking water and impacting water sports, angling, wildlife conservation and tourism as well as our health.

Water pollution management of rivers and waterways requires real-time monitoring and intervention using remote, in-situ monitoring systems. Although there are several remote water pollution monitoring systems for nitrogen and orthophosphate, there is nothing capable of remote, in-situ measurements of total phosphorus – a key pollutant that drives algal bloom (eutrophication) in rivers, waterways and lakes.

Oxford HighQ is developing a stand-alone nutrient sensor based on our expertise in chemical sensing and utilising our Optical Microcavity Analyser (OMCA) technology, which will allow the measurement of total phosphorus as well as nitrates, nitrites and orthophosphate to well below the current legal requirements at a cost point competitive with existing water monitoring equipment and capable of unattended remote deployment, powered by battery or solar power.

The extremely small size of optical microcavities coupled with microfluidics makes our sensors small and compact, requiring significantly less reagent and sample volume and reducing power consumption, allowing a device capable of remote, in-situ measurements with reduced cost of ownership.

Prototypes are under development and product launch is planned early 2022.

If you would like to receive updates including copies of our application and technical notes, please contact us.

Related publications


© 2020 Oxford HighQ LTD is a company registered in England & Wales with Company Registration No. 11002764. VAT number: GB300775331