As part of research efforts to monitor microplastic pollution and its environmental impact, Dr. Zainab Yavari from the Department of Civil and Architectural Engineering is conducting a study to assess the prevalence of microplastics in wastewater treatment plants in the Sultanate of Oman. The study aims to measure microplastic concentrations and analyse their physical and chemical properties, including size, shape, colour, and molecular composition. It also seeks to evaluate the efficiency of current treatment technologies in removing microplastics, identify potential sources of pollution, and conduct a comprehensive assessment of their environmental and health risks.

The research follows a rigorous scientific approach that involves the periodic collection of samples from selected treatment plants, followed by purification using advanced techniques to remove organic and inorganic substances. Microplastics are then characterised using microscopy and Fourier-transform infrared (FTIR) spectroscopy, thus enabling precise identification of their components.

The sampling process began last December in collaboration with Nama Water Services, selecting key treatment plants in the Wilayat of Seeb (two plants), Barka, Sohar, Nizwa, Ibra, and Ibri. Samples are collected monthly to ensure the accurate tracking of pollution levels. Initial microscopic analyses have revealed the presence of visible macroplastics in the collected samples, while polymer composition tests are still ongoing, with results expected to be announced soon.

The study will provide deeper insights into microplastic pollution and its potential impact on water quality, the environment, and public health. Furthermore, it will lay the groundwork for developing more effective water treatment strategies and reducing plastic pollution in the Sultanate of Oman, thereby enhancing long-term environmental sustainability.