1, aquatic organisms are polluted.
The discharge of nuclear polluted water into the sea will lead to an increase in the concentration of radioactive substances in the water, which will have a toxic effect on marine life. These radioactive substances will be transmitted through the food chain, causing damage to organisms at all levels in the marine ecosystem, including algae, plankton and benthos.
2. Polluted waters and marine food chain
After discharged into the ocean, nuclear pollutants will spread in the water and gradually enter the marine food chain. After marine organisms ingest radioactive substances, radioactive substances in their bodies will gradually accumulate and enter the human food chain.
3. Marine ecosystem pollution
The discharge of nuclear polluted water into the sea not only affects aquatic organisms, but also destroys the entire marine ecosystem. The existence of radioactive substances will destroy the biodiversity and ecological balance of the ocean, which may lead to the collapse of the marine ecosystem and affect other species in the marine ecosystem, such as coral reefs and seagrass beds.
4, affecting marine resources and fisheries.
The discharge of nuclear polluted water into the sea will lead to the pollution and destruction of marine resources, and then affect fisheries. The pollution of marine environment may lead to the decrease of fishery resources, the decline of fishery output, and even the direct prohibition of fishery activities, thus causing serious economic losses to fishermen and related industries.
Radioactive substances in nuclear polluted water mainly include the following:
1. Radionuclide: There are many radionuclides in the nuclear polluted water, among which the most common ones are cesium-137(Cs- 137) and silver-110m (Ag-1/kloc-). These nuclides are the products released by nuclear reaction or nuclear accident, and have a long half-life and can exist in the environment for a long time.
2. Highly radioactive substances: Nuclear polluted water may contain highly radioactive substances, such as uranium (U), plutonium (Pu) and neptunium (Np). These substances are extremely radioactive, which is more harmful to human body and environment.
3. Radioisotopes: In addition to specific nuclides, the nuclear polluted water also contains radioactive isotopes, such as iodine-131(I-131), strontium -90(Sr-90) and cobalt -60(Co-60). These isotopes will enter the human body or organism through drinking water, food chain and other ways.