Sixty airdust sample of ten sites in amphoe muang, Pattani Province region, were examined for radioactive; potassium, uranium and thorium. The sample were collected both in the morning and in the evening during three monsoons seasons of northeast monsoons, southeast and southwest monsoons. The gamma spectrometry showed that the average value of potassium, uranium and thorium were 0.0283±3.7x10^-4, 0.0211±3.5x10^-4 and 0.0289±9.5x10^-4 Bq/m³ respectively.

    The highest value of potassium was found near the power station and the highest value of uranium at tap water gencration and the highest value of thorium at ramkomut road.

     The highest site found potassium, uranium and thorium were northeast monsoons, southeast and southwest monsoons respectivety, there three radioactive found during northeast monsoons, southeast and southwest monsoons seasons were declined respectively.