Linked to the industrialization of our society there has been  increasing amounts of carbon dioxide released into the atmosphere, from activities such as agriculture, power generation and industrial manufacturing.  Approximately 30 to 40 % of this anthropomorphic carbon dioxide is eventually ending up in our oceans, rivers and lakes.


The problem with the uptake of carbon dioxide by our global water bodies is that it is leading to the generation of carbonic acid and is causing the acidification of the water.


The acidification of our oceans is leading to the stress of marine organisms such as corals and planktons.


The most widely used technology for pH measurements in sea water has been glass pH probes, but anyone who has used a glass pH probe knows that this technology is not perfect, neither from a  technical, robustness nor cost perspective.

In the case below we use GFET in conjunction with a ZP's pH sensor to measure the pH of seawater.

 In a recent study, researchers from the University of Swansea surveyed the pH of water in the Oslo Fjord. There intention was to map the pH of the water near the shore line and to investigate the use of a ZP pH sensor in conjunction with GFET as a low cost sensing platform.

The ZP pH sensor in combination with the ADI MeasureWare measured the pH of the Oslo Fjord near the shore as pH 7.6.    2022