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Using Radon to Measure Submarine Groundwater Discharge (SGD) in<br />

UMT’s Channel<br />

Siti Nurul Najihah Ahmad Nazri<br />

Nur Atikah Othman<br />

Supervisor: Dr. Poh Seng Chee<br />

Bachelor of Science (Analytical and Environmental Chemistry)<br />

School of Marine and Environmental Sciences<br />

Universiti Malaysia Terengganu<br />

Radon was used as an environmental tracer to identify the Submarine Groundwater<br />

Discharge (SGD) in the surface water. In this study, samples were collected from UMT<br />

storm water channel to determine SGD. 10 grab sample will collected along the<br />

channel covering from upstream to downstream. The physical parameter such as<br />

salinity, temperature and pH also measured in-situ. Based on radon result, we<br />

identified that SGD hotspot was located at Point 2 with radon concentration 0.038bq/L.<br />

For confirmation, a time series continuous sampling of radon was conducted at Point<br />

2. Our result shows that high radon concentration (above 0.20bq/L) was detected<br />

during low tide, while lower radon concentration (below 0.10bq/L) was detected<br />

during high tide.<br />

1998 | UMT UNDERGRADUATE RESEARCH DAY 2018

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