Citizen Science for Dissolved Oxygen Monitoring: Case Studies from Georgia and Rhode Island

2018 ◽  
Vol 35 (4) ◽  
pp. 362-372 ◽  
Author(s):  
Hannah Safford ◽  
Catherine A. Peters
Keyword(s):  
Dissolved Oxygen ◽  
Case Studies ◽  
Citizen Science ◽  
Rhode Island ◽  
Oxygen Monitoring ◽  
Dissolved Oxygen Monitoring

scholarly journals Active Potentiometry for Dissolved Oxygen Monitoring with Platinum Electrodes

Sensors ◽  
2018 ◽  
Vol 18 (8) ◽  
pp. 2404 ◽  
Author(s):  
Peter Zimmermann ◽  
Andreas Weltin ◽  
Gerald Urban ◽  
Jochen Kieninger
Keyword(s):  
Transfer Function ◽  
Dissolved Oxygen ◽  
Oxygen Concentration ◽  
Potentiometric Sensors ◽  
Platinum Electrodes ◽  
Forming Mechanism ◽  
Long Term Stability ◽  
Measurement Results ◽  
Oxygen Monitoring ◽  
Dissolved Oxygen Monitoring

Potentiometric oxygen monitoring using platinum as the electrode material was enabled by the combination of conventional potentiometry with active prepolarization protocols, what we call active potentiometry. The obtained logarithmic transfer function is well-suited for the measurement of dissolved oxygen in biomedical applications, as the physiological oxygen concentration typically varies over several decades. We describe the application of active potentiometry in phosphate buffered salt solution at different pH and ion strength. Sensitivity was in the range of 60 mV/dec oxygen concentration; the transfer function deviated from logarithmic behavior for smaller oxygen concentration and higher ion strength of the electrolyte. Long-term stability was demonstrated for 60 h. Based on these measurement results and additional cyclic voltammetry investigations a model is discussed to explain the potential forming mechanism. The described method of active potentiometry is applicable to many different potentiometric sensors possibly enhancing sensitivity or selectivity for a specific parameter.

scholarly journals Embedded Wireless Dissolved Oxygen Monitoring Based on Internet of Things Platform

2021 ◽  
pp. 363-368
Author(s):  
Wasana Boonsong ◽  
Keyword(s):  
Internet Of Things ◽  
Dissolved Oxygen ◽  
Water Temperature ◽  
Monitoring System ◽  
Pearson Correlation ◽  
The Social ◽  
Iot Platforms ◽  
Oxygen Monitoring ◽  
Dissolved Oxygen Monitoring ◽  
The Relationship

Recently, Internet of Things (IoT) applications are distributing into many areas, such as industry and agriculture. This article presents the embedded wireless Dissolved Oxygen (DO) monitoring system based on IoT platforms. The module contains two types of data sensing, which are water temperature and DO sensors. Both devices are embedded with a wireless IoT module using NodeMCU-ESP8266, an integration WiFi-Microcontroller on a single board. The proposed IoT-DO monitoring system detects information data from the aquaculture pond environment. Namely, the parameters studied are water temperature and DO values. The cloud internet network collects and stores the experimental data and link to the users. The relationship between both parameters is analyzed using Statistical Package for the Social Sciences based Pearson correlation coefficient theory. The findings found that the water temperature and DO values are negatively related, with a statistically significant .05. Water temperature is the principal affection to other parameters of water. In this work, the DO value is studied to relate the water temperature. It was found that when the water temperature increases, the DO decreases accordingly and vice versa.

CONTINUOUS DISSOLVED OXYGEN MONITORING IN CHICAGO

2002 ◽  
Vol 2002 (12) ◽  
pp. 600-607
Author(s):  
Richard Lanyon ◽  
Irwin Polls ◽  
Michael Sopcak
Keyword(s):  
Dissolved Oxygen ◽  
Oxygen Monitoring ◽  
Dissolved Oxygen Monitoring

Development of dissolved oxygen monitoring system for fish ponds

2013 ◽  
Author(s):  
Macqy Garcia ◽  
Erna Marie Trambulo ◽  
Jeremiah Pajarillo ◽  
Mary Regina B. Apsay ◽  
Joseph Emmanuel Tenorio ◽  
...  
Keyword(s):  
Dissolved Oxygen ◽  
Monitoring System ◽  
Fish Ponds ◽  
Oxygen Monitoring ◽  
Dissolved Oxygen Monitoring
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