. Like all industries, the generation of electricity produces waste. Whatever fuel is used, the waste produced in generating electricity must be managed in ways that safeguard human health and minimise the impact on the environment.For radioactive waste, this means isolating or diluting it such that the rate or concentration of any radionuclides returned to the biosphere is harmless. To achieve this, practically all radioactive waste is contained and managed, with some clearly needing deep and permanent burial. From nuclear power generation, unlike all other forms of thermal electricity generation, all waste is regulated – none is allowed to cause pollution.
Radioactive waste includes any material that is either intrinsically radioactive, or has been contaminated by radioactivity, and that is deemed to have no further use. Government policy dictates whether certain materials – such as used nuclear fuel and plutonium – are categorised as waste.
Every radionuclide has a half-life – the time taken for half of its atoms to decay, and thus for it to lose half of its radioactivity. Radionuclides with long half-lives tend to be alpha and beta emitters – making their handling easier – while those with short half-lives tend to emit the more penetrating gamma rays. Eventually all radioactive waste decays into non-radioactive elements. The more radioactive an isotope is, the faster it decays. Radioactive waste is typically classified as either low-level (LLW), intermediate-level (ILW), or high-level (HLW), dependent, primarily, on its level of radioactivity.
Final Destination for Kerala PSC Notes and Tests, Exclusive coverage of KPSC Prelims and Mains Syllabus, Dedicated Staff and guidence for KPSC Kerala PSC Notes brings Prelims and Mains programs for Kerala PSC Prelims and Kerala PSC Mains Exam preparation. Various Programs initiated by Kerala PSC Notes are as follows:-- Kerala PSC Mains Tests and Notes Program
- Kerala PSC Prelims Exam 2020- Test Series and Notes Program
- Kerala PSC Prelims and Mains Tests Series and Notes Program
- Kerala PSC Detailed Complete Prelims Notes