INTRODUCTION
In the modern world, protection of the environment now constitutes a pre-occupation that is overshadowing many areas, ranging from resource management to preservation-restoration of biotopes and biota with regard to various anthropic stresses, radiological protection among them. Recent international conferences on the environment (Rio and Kyoto) have introduced two new ideas to the forefront, now made consensual. The concept of sustainable development recognizes that human activity should “respect” the biotopes and biota, which constitute the biosphere, since they determine the conditions for support of all life in the present and future on our planet. The precautionary principle tries to transcend lack of scientific knowledge, especially where long-term consequences generated by human actions are involved, through an optimized risk management approach. [1]
The environmental impact of radioactive materials depends on factors such as the type and half-life of the radionuclide, the mode of release, and the characteristics of the affected ecosystem. Events like the Chernobyl and Fukushima nuclear disasters have highlighted the devastating and long-term consequences of radioactive contamination. Understanding the behavior and effects of these materials is essential for developing effective safety standards, regulatory policies, and remediation strategies to minimize environmental and health risks.
The progress of the nuclear industry has been instigated by man, who is thus primarily concerned, and very rightly so, with his own radiological protection. The principles, concepts and practical implementation of this radioprotection have been established successfully, by the building up of an international consensus, by the International Commission on Radiological Protection (ICRP). In such a situation where man himself is the object to be protected, the broader environment has merely has been considered in a restrictive sense, that is to say in so far as it offers a direct vector for the exposure of man. [2]
RADIOACTIVE MATERIALS
Radioactive materials are substances that emit ionizing radiation as a result of the decay of unstable atomic nuclei. While some of these materials occur naturally in the environment-such as uranium, thorium, and radon-others are produced through human activities, including nuclear power generation, medical applications, and military use. Radioactive materials in the crust of the earth can have terrestrial radiations. The radioactive components are present in rocks, soil, and water and comprise potassium 40, radium 224, radon 222, thorium 232, uranium 235, uranium 238, and carbon 14.
Once introduced into the environment, whether accidental or deliberate, radioactive substances, poses serious concerns due to their long-lasting presence and biological effects. It can also contaminate air, water, and soil, leading to ecological disruption and potential harm to all forms of life. Radioactive waste is any material that is intrinsically radioactive, or contaminated by radioactivity, and that is considered to be of no further use. [3]
There are four principal categories of radioactive waste:
i. High-level waste: This is the residue left when nuclear fuel is converted into energy through a nuclear reactor. Since the fuel has been utilized, the waste is in the form of tiny pellets and fuel rods.
ii. Intermediate-level waste: This middle stage of radioactive waste is generally included of material that must be stored appropriately out of land or human contact, but must not undergo a cooling process prior to doing so. Many decommissioned nuclear facilities possess this level of radioactivity, and waste is normally managed based on how long it will take for the radioactivity to decay.
iii. Low-level waste: This is normally materials used in a nuclear process that have been contaminated, like rags used for clean-up, tubes used to contain material, or even clothes and equipment. Hospitals usually generate this type of waste, which is one of the simplest to dispose of.
iv. Mill Tailings waste: Nuclear substance, especially thorium and uranium – are derived from a unique process of extraction that isolates them from naturally occurring ore. Mill tailings are the configurations of residue that result from this process of extraction. [4]
CAUSES FOR RADIOACTIVE POLLUTION
During the post-modern era, a number of types of energy exist. The use of nuclear missiles and atomic bombs, both types of nuclear energy, during World War II accounts not only for the source but also for the destructive nature of radioactive pollution or contamination. Unlike fossil fuels, nuclear power can provide a relatively stable and environmentally friendly source of energy. But when things go wrong, the results are nothing short of catastrophic. Children who are born mentally retarded, along with illnesses like autism and other abnormalities, have been influenced by the effects of the two atomic bombings in Hiroshima and Nagasaki that caused the end of the war in 1945. [5]
The five most devastating nuclear accidents in history are the following:
1. Kyshtym (September 29, 1957)
During the years after World War II, the Soviet Union built scores of secret facilities-most of them crassly and poorly constructed-in a bid to enlarge their nuclear capability. One of them, the Mayak nuclear fuel factory in the Russian town of Ozyorsk, was the scene of a full-blown disaster when the cooling system on one of its waste storage tanks broke down, causing the dried radioactive contents to overheat and explode. A cloud of lethal particles towered over Ozyorsk and the surrounding area, ultimately covering an area of some 300 square miles. A whole week had to go by before the 10,000 residents of the affected area were evacuated; since the plant was top-secret, they were not given any reason for their sudden and permanent relocation. By then, reports of strange illnesses had emerged, such as individuals’ skin peeling off exposed body areas. [6]
2. Windscale (October 10, 1957)
To generate plutonium and other compounds for the nation’s growing nuclear weapons program, Britain’s first nuclear reactor, Windscale, was constructed in northwest England in the late 1940s. On October 10, 1957, employees performing routine maintenance at the huge plant detected increasing temperatures. During further inspection, they found that the reactor’s uranium-loaded graphite core had been on fire. With the reactor about to collapse, plant workers put their lives in danger to battle fire with cooling fans, carbon dioxide and water. The fire was eventually extinguished on October 12, but by then the radioactive cloud had begun spreading over the United Kingdom and Europe. No evacuations took place, but authorities banned the sale of milk from the site for about a month. Scientists have estimated that, in the long term, radioactive fallout from the Windscale accident could have led to some 240 cases of cancer.
3. Church Rock (July 16, 1979)
Thousands of tons of radioactive waste from the United States’ largest underground uranium mine poured out of a broken dam into the North Fork of New Mexico’s Puerco River in an accident. The spill, from the Church Rock Mill of the United Nuclear Corporation, polluted land and water used by members of the Navajo Nation, backed up sewers, impacted two aquifers, and carried contaminants up to 80 miles downstream. However, state and national officials minimized the disaster, which had largely hit a remote, sparsely populated, majority-American Indian region.
4. Chernobyl (April 26, 1986)
Constructed in the late 1970s approximately 65 miles outside of Kyiv in Ukraine, the Chernobyl facility was among the world’s largest and most aged nuclear power plants. In April 1986, a botched safety test on one of the plant’s four reactors resulted in a power surge, which then produced a series of explosions that ruptured the 1,000-ton steel cap from the reactor. A deadly cloud of radioactive material accumulated over the adjacent town of Pripyat-not evacuated until 36 hours later-before drifting over much of Europe.
In the initial days of the crisis, 32 individuals died at Chernobyl and several dozen more received radiation burns. The radiation that leaked into the air-amounting to several times the amount emitted by the atomic bombs that were dropped on Hiroshima and Nagasaki-polluted millions of acres of woods and crops. The total human casualty of the disaster is still not known, but estimates are that thousands of individuals perished and up to 70,000 were badly poisoned. In 2000, the remaining operational reactors at Chernobyl were closed and the facility was formally shut down.
FUKUSHIMA (MARCH 11, 2011)
A magnitude 9.1 undersea earthquake, the largest recorded in Japanese history, struck off the northeast coast of the country’s Tohoku region on March 11, 2011. The quake caused a tsunami that hit the Fukushima Daiichi nuclear power plant. Each of the three operational reactors at the plant successfully shut down during the crisis but the backup cooling and power systems malfunctioned. Consequently, residual heat made fuel rods in all three reactors partially melt down. Reactors 1 and 3 were housed in buildings that exploded on March 12 and March 14, respectively, and led the government to evacuate all people within a radius of 20km. There was another explosion in the building that contained Reactor 2 on March 15, which emitted even more radiation. The full brunt of the meltdown was only made clear in the following months, with the government ultimately relocating all people who lived within a 30km area of the facility. There were initially no fatalities directly caused by the accident, although 18,000 lost their lives due to the earthquake and tsunami. [7]
EFFECT OF RADIOACTIVE POLLUTION
Radioactive pollution has severe impacts on both human health and the environment. Radioactive isotopes can be absorbed by plants and animals, entering the food chain and increasing the risk of exposure for humans. Most of these materials, such as petroleum products, have high levels of radiation, which can cause harmful effect to the environment. Some of the harm from improperly disposed radioactive material includes: [8]
1. Impacting Human Populations: Humans are highly affected from exposure to doses of radiation. Many times, this exposure will impact numerous generations in the future, because it causes various birth and developmental disabilities.
a. Genetic Mutations: Radiation damages DNA, leading to genetic mutations, cancer, and infertility.
b. Disease Development: Prolonged or high-level exposure to radiation can result in significant health issues, such as, cancer, anaemia, leukaemia, haemorrhages, and cardiovascular diseases.
c. Cell Damage: Radiation harms body cells, potentially leading to irreversible tissue damage, permanent illness, or death. [9]
2. Impact on Wildlife: One simply has to look toward the Chernobyl disaster to realize what the results of radiation can be on wildlife within the region. As sad as it is, even though the incidence took place 30 years ago, the majority of the animals are considered to be affected by radioactivity. This is evidenced in smaller brain capacities, bodily deformities, and other issues that affect the survival of such animals.
3. Affecting Local Flora: Vegetation is also vulnerable to destruction by nuclear radioactive waste. Following Chernobyl, a whole pine forest had to be razed as it was contaminated with radiation. Not to mention, radioactive soils and plants discourage bees and other valuable organisms from fertilizing and aiding flora growth, which once more contributes to affect future generations.
4. Affecting Nuclear Workers: It goes without saying that individuals who work with nuclear materials are extremely vulnerable to ill effects. Though uncommon, nuclear reactor meltdowns have caused numerous fatalities in the past, both from irradiated individuals exposed and even some of whom were irradiated during research or test stages. Inadequately stored waste at a nuclear facility can also cause levels of exposure that are beyond human tolerance. [10]
APPLICATION OF RADIATION
Radiation, which was discovered by the scientists since the 1890s, is currently applied extensively in a range of areas to serve humankind. Radiation is deployed in the field of medicine, academics, and industry, along with generating electricity. In addition, radiation has useful applications in such areas as agriculture, archaeology, space exploration, law enforcement, geology, and many others. Its major applications are as follows:
Medical Applications
• Diagnosis and Treatment: Radiation is a vital ingredient in the prevention and treatment of cancer. Chemotherapy, a health program for curing cancer, utilizes radiation to suppress the growth of cancer cells while also boosting the immune system.
• Advanced Imaging: CT scanners produce clear interior images.
• Nuclear Medicine: Radioactive isotopes are applied to diagnose illnesses by targeting an organ.
Educational and Scientific Applications
• Education and Research: Applied to environmental monitoring, plant growth research, and determination of pollutants.
• Carbon Dating: Archaeologists ascertains the age of fossils and artifacts by measuring carbon-14 decay by using radioactive materials through process called carbon dating.
Industrial Applications
• Sterilization and Food Preservation: Radiation sterilizes bacteria in food and medical instruments without rendering them radioactive.
• Pollution Control: Cleans dangerous emissions from power plants.
• Material Processing: Enhances fabrics in clothing and cookware.
• Agriculture: Improves crops and pest control.
• Product Quality: Gauge measures product uniformity and machinery wear.
• Construction and Exploration: Utilized in soil surveys, flaw detection, and resource exploration.
• Space Exploration: Energizes spacecraft and satellites.
Nuclear Power Plants
• Electricity Generation: Nuclear fission is used to boil water and create steam to produce electricity.
• Safety Measures: Radioactive materials are in confinement, with little environmental discharge under close regulations.
• Public Safety: Radiation exposure from plants is well below dangerous levels, frequently less than 1% of natural background exposure. [11]
WAY OF DISPOSAL
The geological disposal method focuses on ‘burwing’ nuclear waste into the ground to the extent where it is inaccessible to humans. There are several problems that may occur due to disposing of radioactive waste in the ground. Such waste must be adequately covered to prevent any material from escaping. Seepage of the waste may pollute the water table if the burial site is at or below the level of the water. But as far as large-scale disposal of nuclear waste, low-level to high level, there are certain standard forms of ensuring that it is properly handled and irradiated. [12]
1. Incineration: Burning the radioactive waste is mainly accomplished through commercially-owned incinerators specifically designed for the purpose, though some big companies have the capability to do so individually. Incineration is widespread with low-level waste, since such material typically comprises clothing or other everyday items that have merely been contaminated.
2. Storage: The radioactivity of nuclear material does eventually disappear with time, so storing such material until is no longer radioactive is another means to address proper nuclear waste disposal. This is known as radioactive decay, and it varies with the quantity of materials and level of radioactivity. As such, storage is usually performed with radioactive waste of relatively shorter half-life, or the time in which the radioactivity of the material is halved. There are commercial storage sites for this waste, whereas some authorized businesses have their own storage facilities.
3. Burial: Although shallow burial can be accomplished with low-level waste, most frequent method of disposal of high-level waste is in deep burial pits. Most nations possessing natural resources practice this method of geological disposal, which involves burial deep in the ground. Usually times, underground laboratories are constructed to track usage and storage of the materials.
4. In water: One of the most common methods of storing material in nuclear locations is in water. Almost all of these locations have a special pond or have a special pool built, which is an area where they can store fuel that has already been used for the process of power generation.
5. Recycling: For some of the radioactive material, such as old, used fuel, there are certain radioactive elements can be recycled or processed for use. Uranium and plutonium elements are long-lived, so they can be recovered and recycled.
6. The Ocean: A minute quantity of liquid waste that is usual in the event that waste is reprocessed to recover usable elements is discharged into the ocean. This activity is well contained, and radiation levels are considered to be so minimal that they are negligible. Nonetheless, recent contracts between firms that depend on nuclear materials have eliminated this practice. [13]
REGULATORY FRAMEWORK
In order to establish and maintain sustainable nuclear security regulatory infrastructures for radioactive sources, it is important for States to develop nuclear security regulations with regulatory requirements and relevant criteria for security, which are consistent and well-integrated with those for radiation safety. The regulatory framework for radioactive material mitigation is multi-layered, including international norms, national laws, and safety guidelines specific to the issue at hand, with a view to safeguarding human health and the environment against the deleterious effects of radiation. [14]
International Framework:
International Organizations:
i. The International Commission on Radiological Protection (ICRP) is an independent organization established to advance the science of radiological protection for the public good. It gives advice and recommendations on every aspect of protection from ionizing radiation. The ICRP is widely considered to be the authoritative international organization in the area.
ii. The International Atomic Energy Agency (IAEA) is a self-standing inter-governmental agency established by the United Nations. Its aim is to help its member nations sustainably develop, by international co-operation, the scientific, technological and legislative foundations for the safe, environmentally friendly and economical use of nuclear energy for peaceful purposes. It determines international safety and security standards concerning radioactive materials.
iii. The Organization for Economic Cooperation and Development (OECD) Nuclear Energy Agency (NEA) is an inter-governmental organization that promotes co-operation among nations possessing advanced nuclear technology infrastructures in pursuit of excellence in nuclear safety, technology, science, environment and law. It is also tasked with elaborating international conventions and agreements on several aspects of nuclear safety. [15]
International Conventions:
International conventions relating to safety, security and environmental protection have been formulated by various organizations such as the UN, the IAEA and the NEA. These include:
i. The Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management sets out underlying safety principles. It is applicable to spent fuel from the operation of civilian nuclear reactors and radioactive waste from civilian use.
ii. The Convention on Nuclear Safety is applicable to civil nuclear facilities. The Convention binds contracting parties to uphold high standards of safety by formulating basic principles of safety.
iii. The Convention for the Physical Protection of Nuclear Materials addresses physical protection of nuclear sites and nuclear material for peaceful use in national use and storage.
iv. The Convention on Environmental Impact Assessment in a Transboundary Context (Espoo Convention) establishes the broad obligation of states to notify and consult with one another on all significant projects under consideration that may have a substantial adverse environmental effect across boundaries. The Convention applies to a range of sectors and activities such as nuclear power plants and disposal and treatment of radioactive waste. [16]
National Framework:
i. Atomic Energy Act, 1962: The Act gives legal sanction to regulate every facet of atomic
energy in India. It is a key piece of legislation that governs the development, regulation, and control of atomic energy for peaceful purposes such as electricity generation, medical uses, agriculture, and scientific research.
ii. Atomic Energy Regulatory Board (AERB): AERB is the authorized national body established by the Government of India under the provisions of the Atomic Energy Act, to prescribe and enforce rules and regulations in relation to radiation safety in India. It plays a crucial role in maintaining public confidence in nuclear energy by ensuring high standards of safety and compliance across India’s nuclear and radiation facilities.
iii. Atomic Energy (Radiation Protection) Rules, 2004: These rules cover practices and interventions with sources of radiation all over India to ensure the safe use of ionizing radiation and the protection of people and the environment from its harmful effects.
iv. Environmental Protection Act, 1986: This Act not only covers environmental protection matters, but also plays a complementary role in regulating and mitigating radiation hazards in coordination with nuclear-specific laws like the Atomic Energy Act and rules enforced by the AERB, thus providing holistic environmental protection. [17]
CONCLUSION
The existence and application of radioactive substances, as useful as they are in energy, medicine, and industry, involve huge dangers if not handled conscientiously. Radioactive pollution’s effects on the environment and human health from long-lived radioactive waste to nuclear accidents are devastating and can be felt for centuries. Past experiences such as Chernobyl and Fukushima emphasize the inevitable necessity of strict standards of safety and preventative measures.
The findings of this analysis, as well as the insights regarding the implementation of international guidelines for safety and security of radioactive material, indicate the fact that the safety infrastructure is not enough for States to guarantee that the international recommendations for security are being implemented. Safety would not be possible without security, and security cannot do without safety. It is only when applied in harmony, international advice on safety and security can realize the primary goal of safeguarding people, society and the environment against the ill effects of ionizing radiation.
In the process, the outcome achieved may help towards a greater understanding and application of international safety and security recommendations and assist experts globally in their quest for developing or enhancing security systems in harmonization with the already established safety systems. [18]
RECOMMENDATIONS TO IMPROVE SAFETY AND SUSTAINABILITY
a. Increase Regulatory Compliance and Monitoring: Governments have to provide strict enforcement of safety protocols, frequent audits, and on-time monitoring systems in nuclear plants and other sites handling radioactive material.
b. Raise Public Awareness and Education: Public education, particularly among communities around nuclear facilities, on radiation safety and emergency preparedness can minimize panic when accidents happen and encourage safe behavior.
c. Encourage Research and Innovation in Waste Management: Investment in new technologies like deep borehole disposal, vitrification, and plasma incineration can enhance the safety and efficiency of radioactive waste disposal.
d. Develop Emergency Preparedness and Response Plans: Governments and organizations need to keep updated and practiced emergency plans, with proper infrastructure and medical facilities in the event of accidental radiation release.
e. Foster International Cooperation: Sharing best practices, technology, and incident experience across borders can assist countries in mutually improving their nuclear safety and environmental protection regimes.
f. Adopt the Precautionary Principle More Widely: The precaution should always be the most important consideration in all decisions related to radioactive materials, particularly where there is scientific uncertainty, to prevent irreversible damage to the environment and public health.
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Footnotes
1. F. Brechignac, Impact of radioactivity on the environment, Vol. 36, pg.511, EDP Sciences (2011).
2. Id at 1.
3. Mudasar Hassan, Radioactive pollution: A Global concern for environment, Vol. 10 Issue 6 No.1000152, Journal of pollution effects and control (2022).
4. Dr. Melvin A. Ekka, Radioactive waste disposal methods (2020).
5. Jennie Cohen, History’s 6 worst Nuclear Disasters, HISTORY (last visited June 6, 2025) https://www.history.com/articles/historys-worst-nuclear-disasters (2011).
6. Id at 5.
7. Supra note 5 at 4.
8. Vishal, Radioactive pollution, types, sources, effect & measures, STUDY IQ (last visited June 10, 2025) https://www.studyiq.com/articles/radioactive-pollution/ (2023)
9. BYJUS, https://byjus.com/chemistry/effects-of-radioactive-pollution/ (last visited June 5, 2025).
10. Dr. Melvin A. Ekka, Radioactive waste disposal methods (2020).
11. Uses of Radiation, U.S.NRC (last visited June 3, 2025) https://www.nrc.gov/about-nrc/radiation/around-us/uses-radiation.html (2022).
12. Supra note 10 at 7.
13. Supra note 10 at 7.
14. Supra note 8 at 6.
15. Managing Radioactive substances and nuclear decommissioning, UK Policy framework (2020).
16. Managing Radioactive substances and nuclear decommissioning, UK Policy framework (2020).
17. BFS, https://www.bfs.de/EN/topics/ion/accident/management/consequences/environment/environmentnode.ht ml (last visited June 4, 2025).
18. Supra note 1 at 2.