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Correlation and regression analysis of unionised ammonia ions, NH3 and pH in ornamental fish aquatic environment


Fatin Izyani Mohamad Robi Electrical Engineering Studies, College of Engineering, Universiti Teknologi MARA, Cawangan Pulau Pinang, Pulau Pinang, MALAYSIA Mohamad Naim Ahmad Electrical Engineering Studies, College of Engineering, Universiti Teknologi MARA, Cawangan Pulau Pinang, Pulau Pinang, MALAYSIA Nur Syafiqah Nadiah Mohd Zain Electrical Engineering Studies, College of Engineering, Universiti Teknologi MARA, Cawangan Pulau Pinang, Pulau Pinang, MALAYSIA Mohd Suhaimi Sulaiman Electrical Engineering Studies, College of Engineering, Universiti Teknologi MARA, Cawangan Pulau Pinang, Pulau Pinang, MALAYSIA Khairul Anuar Ishak Politeknik Metro Tasek Gelugor, Jalan Komersial 2, 13300, Tasek Gelugor, Pulau Pinang, MALAYSIA Mohamad Faizal Abd Rahman Electrical Engineering Studies, College of Engineering, Universiti Teknologi MARA, Cawangan Pulau Pinang, Pulau Pinang, MALAYSIA
Abstract
Assessing ammonia in water is very important for fish farmers as it is one of the pollutants that may affect the water quality. In water, ammonia can be found either in the form of unionised ammonia NH_₃ or ionised ammonia NH⁺₄, which contribute to a total ammonia nitrogen (TAN). In assessing the ammonia toxicity, NH₃ provides a more accurate measure of toxicity and needs to be monitored consistently, rather than relying solely on TAN. However, the method of measuring NH₃ in water can be complex and challenging. Therefore, the ability to determine the correlation between NH₃ and other parameter which is easier to be measured (such as pH) is crucial to enable the estimation of NH₃. This study was conducted to determine the correlation between NH₃and pH based on the data collected from Redgold Aquatics ornamental fishponds located in Sik, Kedah. The pH was assessed by a commercial measuring device, while the NH₃ was calculated using an appropriate mathematical equation that requires the data of pH, TAN, and temperature. The correlation and regression analysis were conducted via the IBM SPSS tool and Microsoft Excel. The result shows that NH₃ and pH are highly correlated with regression equation of NH₃ = 0.01pH – 0.07. In addition, factors that may affect the total ammonia value have been discussed thoroughly in this work. The analysis of these water quality parameters may assist farmers in estimating the toxic ammonia, NH₃ from the known water pH.
Keyword: Water quality, Ornamental fish, pH, NH₃, Correlation analysis
DOI: 10.24191/esteem.v20iSeptember.1739.g1706
References:
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