Actually, radioactive waste primarily consists of uranium fuel. Uranium has a radioactivity of 25.4 becquerels per milligram, and a barrel of radioactive waste usually holds 6 to 20 tonnes of fuel. 6 tonnes contains 6,000,000,000 milligrams of uranium, and 20 tons contains 20,000,000,000 milligrams. This means that one barrel of radioactive waste contains anywhere between 152,400,000,000 becquerels to 508,000,000,000 becquerels. The average human body is only 3,000 to 6,000 becquerels. So no, they are not "more toxic than radioactive waste".