As air pollution continues to choke the Kathmandu Valley, concerns over another major environmental crisis—plastic waste are mounting. Despite a series of ambitious government pledges to eliminate single-use plastics, implementation remains ineffective, and the problem is only getting worse.
Nepal first announced a ban on plastic bags in 2015, aiming to reduce non-biodegradable waste and protect major rivers. According to the government’s official gazette published on 1 April 2015, the production, import, sale, and use of plastic bags smaller than 20 inches wide, 35 inches long, and thinner than 40 microns were prohibited within the valley. The decision came into force on 14 April 2015, with plans to extend it nationwide. For a brief moment, the effort seemed successful—many citizens began carrying reusable bags, and plastic use in city markets visibly declined.
However, the devastating earthquake in 2015 and the subsequent Indian blockade derailed the momentum. The government’s focus shifted toward disaster relief and survival logistics, and plastic bags once again flooded the market. Relief efforts relied heavily on plastic packaging, further entrenching its use. In the years that followed, plastic bags made a full comeback, undermining years of environmental advocacy.
Since then, the government has made the same promise multiple times. In its annual budget speech for the fiscal year 2021/22, then Finance Minister Bishnu Paudel declared a complete ban on plastic bags thinner than 40 microns. This was the third such announcement by the federal government. “I have made arrangements to use cotton, jute or paper bags instead of plastic bags in all business houses including shopping malls and department stores,” Paudel stated, adding that companies replacing old plastic manufacturing machines would receive grants.
Yet, like previous declarations, the enforcement never materialized. Industrialists remained largely silent, with some expressing doubts about the feasibility of such a ban. Even the Kathmandu Metropolitan City (KMC) had pledged to make the city plastic-free within a year in its 2019/20 policy plan. That commitment, too, was abandoned without a single round of market monitoring.
Implementation efforts have been repeatedly hindered by external and internal factors. Apart from the 2015 disasters, protests by plastic industrialists and legal challenges have struck enforcement. In 2018, a writ petition filed at the Supreme Court by Explore Nepal Pvt. Ltd. temporarily halted the new ban. The court issued an interim order preventing the government from implementing its decision, leaving plastic production and use unchecked once again.
The Department of Environment’s monitoring drives have also been inconsistent. Local governments and district offices have often turned a blind eye to ongoing violations, making the ban little more than a paper directive. In 2023, the Ministry of Federal Affairs and General Administration once again announced a ban on plastic bags below 40 microns. The ministry’s secretary, Krishna Hari Pushkar, urged citizens to stop using thin plastic bags and called on all levels of government to enforce the rule.
According to a 2020 World Bank report, Nepal generates an estimated 4,900 tons of solid waste each day, with plastic waste accounting for about 13 percent of the total. According to the Waste Management Baseline Survey 2022, plastic accounted for 12 percent of household waste, 21 percent of institutional waste, and 22 percent of waste generated by commercial establishments. Yet, no tangible progress followed the 2023 announcement either.
According to a 2024 World Bank report, Nepal generates around 60,000 tons of plastic waste annually, with a significant portion—nearly one-third—ending up in rivers that eventually flow into India and Ocean. Globally, about 8bn tons of plastic have accumulated in oceans, making the water increasingly acidic and threatening aquatic life. This pollution also affects the planet’s oxygen cycle, as oceans produce nearly 50 percent of the Earth’s oxygen, which is now under threat.
Environmental expert Ujjwal Upadhaya explains that globally, around 360m tons of plastic are produced each year, of which about 1m metric tons end up producing daily. When a plastic is formed, 6.1kg carbon emission is produced.
Upadhaya further noted that studies in Brazil found microplastic particles in the brains of 33 deceased individuals, highlighting serious global health concerns. Similar research has yet to be conducted in Nepal. He added that the average person in Nepal carries an estimated 15 grams of microplastics in their body.
Moreover, the open burning of plastics releases dioxin gas, one of the most toxic pollutants, which remains concentrated at low altitudes, directly harming both humans and animals.
The Kathmandu Metropolitan City (KMC) also announced a ban on the open burning of waste and plastic materials to curb worsening air pollution during the winter months. According to the KMC Environment Department, the decision aims to reduce environmental and health risks linked to smoke and toxic emissions from burning plastics. Department Chief Sarita Rai emphasized that offenders will face a fine of Rs 10,000 per violation, noting that air pollution in the Valley spikes each winter due to widespread open burning. The ban prioritizes protecting vulnerable populations—especially children, the elderly, and people with respiratory or heart conditions. To ensure effective enforcement, KMC has launched awareness and monitoring campaigns under the Kathmandu Metropolitan City Environment and Natural Resources Conservation Act, 2020, and the Fiscal Act, 2025.
Plastics pose significant threats not only to the environment but also to public health. There are seven main types of plastic, each with distinct uses, recyclability, and health impacts. PET (Polyethylene Terephthalate) is commonly used in water and mineral bottles and can be recycled; however, once recycled, it should not be reused for drinking purposes as it may release harmful chemicals. Recent tests even found 75–85 units of microplastic particles in some water jars, raising serious health concerns.
HDPE (High-Density Polyethylene), found in shampoo and detergent bottles, is recyclable and safer for reuse in non-food products. LDPE (Low-Density Polyethylene), used in plastic wraps and carry bags, is also recyclable but often poorly managed in Nepal. PP (Polypropylene), used for grain sacks (bora), bottle caps, and food containers, can be recycled if proper facilities are available.
However, MLP (Multi-Layered Plastic)—commonly seen in chips and instant noodle packets—is known as “ugly plastic” because it is non-recyclable and harmful to both human health and the environment. Chemicals from such packaging can leach into food, posing risks especially to children, and Nepal currently lacks a system to monitor food packaging quality. PVC (Polyvinyl Chloride), used in pipes and wires, is difficult to recycle and releases toxic gases when burned. Finally, ABS (Acrylonitrile Butadiene Styrene), found in toys and electronic products, is one of the most hazardous plastics, as it is non-biodegradable and can release toxic substances that endanger both humans and animals.
Upadhaya said, “Burning of these plastics releases microplastics into the air, which we inhale. Some particles can enter the olfactory bulb—the part of the brain responsible for smell—potentially increasing the risk of brain strokes. Microplastics also travel down to the lungs, affecting vital organs such as the kidneys, liver, lungs, and heart.” He also said that when the body tries to cope with such damage, it can trigger the development of cancer, which ultimately harms our health.
According to a report by the Monterey Bay Aquarium, plastic does not biodegrade but breaks down into microplastics—particles less than 5 millimeters in size. These have been found everywhere, from the depths of the oceans to Antarctic snow, and even inside human lungs and bloodstreams.
The United Nations Environment Programme (UNEP) has confirmed microplastic traces in human organs such as the liver, kidneys, and placenta, raising alarm over potential health consequences. Similarly, the International Union for Conservation of Nature (IUCN) reports that carcinogenic chemicals from plastics can leach into tap water, posing severe risks to human and ecological health.
Upadhaya said, “At present, Nepal mainly consumes salt imported from the ocean, which contains around five grams of microplastics per kilogram. People who regularly eat seafood tend to have even higher amounts of microplastics in their bodies.” He also noted that plastic pollution contributes to urban flooding by blocking drainage systems. According to him, “We cannot live without plastic, as it has become part of every aspect of our lives. However, the key is to reduce the use of the most harmful types, such as ABS plastic, and ensure that any plastic produced is properly recycled and responsibly disposed of.”
Recycling has often been promoted as a solution, but the challenges are alarming. Contamination from food residue, high processing costs, and limited infrastructure make large-scale recycling inefficient in Nepal. It reduces landfill waste, conserves natural resources like petroleum, prevents environmental contamination, and decreases marine pollution. Recycling also mitigates microplastic formation and promotes public health by reducing exposure to toxic substances.
Experts argue that government policy alone cannot solve the plastic crisis. Consumers must adopt more sustainable habits—using reusable shopping bags, avoiding over-packaged goods, and participating in recycling programs. Supporting eco-friendly businesses and community-led recycling initiatives can also foster long-term change. Sangita Tamang, a grocery shopkeeper said she is compelled to use plastic bags despite knowing their environmental impact. “Clothes bags are expensive, and customers don’t want to pay extra for them,” she explained. “People are willing to pay for reusable bags in big malls, but when small shopkeepers like us charge for them, they accuse us of trying to make more money. So, we are forced to keep using plastic bags,” she added with a note of frustration.
The number of animals consuming plastic waste is also on the rise, as many ingest it unknowingly and die as a result. Upadhaya cited an example from the National park, where wild animals died after choking on plastic. He explained that plastic pollution not only harms land animals but also affects aquatic life, leading to a decline in fish populations. This, in turn, impacts the livelihoods of people who depend on fishing. Species such as the gharial and dolphin are also declining as their food sources diminish due to increasing plastic contamination in rivers and water bodies.
Globally, plastic production has skyrocketed—from 1.5m metric tons in 1950 to 359m metric tons in 2018—with between 4.8 and 12.7m tons ending up in oceans annually, according to PlasticsEurope.
Several organizations in Nepal including Doko Recyclers, Khalisisi, Upcycle Nepal, and Eco Sathi Nepal are actively promoting recycling and sustainability. Through their initiatives, they aim to reduce waste and encourage environmentally responsible habits. However, their efforts alone are not enough. True change requires collective action—every citizen must understand the importance of sustainability, adopt eco-friendly practices, and help raise awareness to protect the environment for future generations.
By minimizing plastic use and promoting recycling, communities can move toward a cleaner and healthier environment. Moreover, a cleaner environment free from plastic waste greatly enhances overall quality of life. Upadhaya said that by minimizing the production of toxic plastics, we can slowly reduce the risk of the plastic. Recycling also plays a vital role in reducing environmental contaminants and fostering sustainable, healthy communities where people can live and thrive in harmony with nature. Nepal’s repeated failures to enforce its plastic bans reveal deep systemic weaknesses—from political will and industrial pressure to inadequate alternatives and public awareness. Strict enforcement, providing viable alternatives, and mobilizing citizens toward behavioral change. Without such collective effort, Kathmandu’s rivers, air, and soil may continue to bear the brunt of plastic pollution for generations to come.
