The world is naturally radioactive and around 90% of human radiation exposure arises from natural sources such as cosmic radiations, exposure to radon gas and terrestrial radiations. Main objectives of the study is:1. To see the trend in variation of these radionuclides in the environment, as we move from Punjab to Himachal Pradesh, as Punjab sediments are derived from Himachal Himalayas.2. To compare the data obtained with(i) The safe limits recommended by different health agencies (ii) Worldwide data reported by these agencies. With the rapidly increasing industrial development in the...