Precise and accurate estimation of natural radioactivity is essential in order toappraise the radiation dose to the member of public due to various intakes. In the presentstudy, an attempt has been made to estimate the uranium content in packaged drinking waterby laser induced fluorimetry and then to calculate the committed effective dose. Sixtypackaged drinking water samples of different brands were analysed for uranium content. Thetotal uranium content in these samples was found to be in the range of 0.04–3.88µg l-1. The concentration of uranium is comparable with other reportedworldwide values except a few high values such as 0.5–6000 µg l-1 in Finland,0.1–28 µg l-1 in China, 0.1–40 µg l-1 in Switzerland and 0.04–1400µg l-1 in Jordan and much lower than the drinking water limit of 15µg l-1 (WHO, 2004) and 30 µg l-1 (USEPA, 2000a). The radiationdose due to uranium ingestion through packaged drinking water was found to vary from0.08–3.19 µSv y-1, with an average dose of 1.21 µSv y-1.
