Greta Jimenez
China's rapid industrialization has resulted in severe air pollution, which has serious social, economic, and political repercussions. The country's unsafe industrial processes have made it the world's largest emitter of mercury and marine plastic debris, with Chinese farms generating more pollution than factories. China's Belt and Road Initiative (BRI) has also been criticized for lacking clear environmental guidelines, potentially causing permanent environmental degradation through pollution, habitat loss, and wildlife mortality. Air pollution in China is caused by vehicle emissions, coal-burning industries, and the use of polluting fuels and technologies in households. In recent years, China has made efforts to improve its environmental protection, such as increasing forest cover and implementing a ban on plastic bags, but the overall level of air pollution remains a significant issue, affecting the health of millions of people.
| Characteristics | Values |
|---|---|
| Number of premature deaths annually due to air pollution | 2 million |
| Deaths caused by ambient air pollution | 1 million |
| Deaths caused by household air pollution | 1 million |
| Deaths caused by indoor pollution | 300,000 |
| Deaths caused by water-borne pollution | 60,000 |
| Deaths caused by unhealthy levels of PM2.5 | 1.42 million |
| Deaths caused by household air pollution from burning solid fuels | 363,000 |
| Deaths caused by coal-generated pollution | 366,000 |
| Total number of vehicles in China in 2020 | 360 million |
| Vehicle emissions as a percentage of Beijing's air pollution in 2018 | 45% |
| Vehicle emissions as a percentage of Shanghai's air pollution | 30% |
| China's position in the world in terms of mercury air pollution | 1st |
| China's rank in the world in terms of marine plastic debris emission | 1st |
| Amount of plastic waste released by China into the ocean in 2017 | 1 million tons |
| Amount of electronic waste produced by China in 2011 | 2.3 million tons |
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What You'll Learn
Air pollution from vehicles and industry
Air pollution in China has become an increasingly prominent issue, with the country facing intense levels of pollution that present serious social, economic, and political problems. One of the major contributors to this issue is air pollution from vehicles and industry.
Vehicle Emissions
China has experienced a rapid increase in the number of vehicles on its roads, becoming the largest vehicle market in the world in 2009. By 2020, the total number of vehicles in China reached 360 million, making vehicle emissions a major culprit of air pollution, especially in larger cities like Beijing and Shanghai. Vehicle emissions were blamed for about 45% of Beijing's air pollution in 2018 and nearly 30% of Shanghai's. This trend is also observed in other heavily polluted cities globally, such as Lahore, Pakistan, where vehicle emissions caused 43% of the city's smog in 2019.
The emissions from vehicles, including nitrogen oxides (NOx), hydrocarbons (HC), volatile organic compounds (VOCs), and particulate matter (PM), have severe health implications. These emissions contribute to the formation of fine particulate matter (PM2.5) and ozone (O3), which present the greatest danger to human health as they can penetrate deep into the lungs and enter the bloodstream. High levels of PM2.5 have led to approximately 1.42 million premature deaths in China annually, according to a study by the Health Effects Institute.
Industrial Pollution
In addition to vehicle emissions, China's rapid industrialization has significantly contributed to air pollution. The use of coal by households and industries, especially in coal-burning hotspots like the Beijing-Tianjin-Hebei (BTH) region, has exacerbated air pollution. The steel industry, in particular, has emerged as China's biggest polluter as of 2017.
The burning of solid fuels and coal by households, especially in rural areas, also significantly contributes to indoor air pollution. While households account for only 1.9% of China's total coal use in 2018, their emissions are less filtered and have a disproportionately large impact on air quality.
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Mercury pollution from coal-burning power plants
China's rapid industrialization and economic growth have resulted in severe environmental degradation and intense levels of air pollution. While various sources contribute to China's air pollution, coal-burning power plants and industrial boilers are the largest combustion sources of mercury emissions.
Coal has been a significant energy source in China, accounting for 57.7% of the country's energy consumption in 2019, a decrease from 76.2% in 1990. The combustion of coal in power plants and industrial boilers releases mercury into the atmosphere, contributing to China's air pollution problem. Mercury is a potent neurotoxin that poses significant risks to human health and the environment.
Power plants and industrial boilers in China emit approximately 250 tonnes of mercury annually, accounting for about half of the country's atmospheric mercury emissions from anthropogenic sources. The lack of intentional control over mercury emissions in the past has led to high levels of mercury emissions from coal combustion. However, China has recently implemented stricter emission standards for major air pollutants, including mercury, from coal-fired power plants. These standards are expected to significantly reduce mercury emissions through the necessary upgrades of multi-pollutant and mercury-specific control technologies.
To address mercury pollution from coal-burning power plants, China has taken several measures. Many power plants are equipped with multi-pollutant control technologies that offer the co-benefit of mercury removal. Additionally, some facilities have installed mercury-specific control technologies. Flue gas cleaning is being upgraded to enhance the removal of mercury and other pollutants. Close monitoring, strict enforcement, and energy conservation measures are also being implemented to reduce mercury emissions and improve air quality.
While China's decarbonization efforts are progressing rapidly, with a growing focus on clean energy and electric transportation, the direct combustion of fossil fuels by businesses and citizens remains a challenge. As long as coal remains a significant energy source, mercury pollution from coal-burning power plants will continue to be a concern.
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$75 $75
Plastic waste in the ocean
China has taken steps to address this issue, implementing a ban on free plastic bags in supermarkets, department stores, and shops in 2008. This ban has had a positive impact, reducing the number of plastic bags ending up as garbage by 10% in the year following its implementation. China has also addressed the issue of electronic waste, which includes both domestically produced and imported waste, and has received recognition for its innovative marine plastic treatment technology.
The Blue Circle program, a collaboration between over 6,000 individuals and more than 200 enterprises from Zhejiang Province, won the 2023 Champions of the Earth Award, the UN's highest environmental honor. This program utilizes digital technologies such as the Internet of Things and blockchain to visually trace the recycling and remanufacturing process of marine plastics. By involving local fishermen, the program effectively reduces pollution in coastal waters while providing additional income opportunities.
The success of the Blue Circle program demonstrates that tackling plastic pollution is achievable, and China's efforts serve as an inspiring example for other nations. However, as Head of UN Environment Erik Solheim stated, we need a global commitment to significantly reduce the amount of plastic entering our oceans and endangering marine life. Over one million people have signed a petition calling for a phase-out of single-use plastic, and countries like Indonesia, Kenya, and Sweden have made significant commitments to reduce marine litter.
The issue of plastic waste in the ocean is a global concern, and it requires a collective effort to address it effectively. China's initiatives, such as the Blue Circle program and the ban on free plastic bags, offer promising strategies that can be adapted and implemented in other regions. By encouraging the use of reusable alternatives, promoting recycling and sustainable waste management practices, and supporting innovative technologies, we can make substantial progress in reducing plastic pollution in our oceans.
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Electronic waste
The majority of e-waste dumped in China, between 60-80%, is handled through illegal, informal recycling processes. These unregulated and unsafe practices include rudimentary methods such as stripping metals by hand, burning toxic materials, and disposing of parts in bodies of water. The informal sector consists of small-scale, often family-run workshops and backyard recycling operations, usually performed by marginalized groups. While recycling can be beneficial for the environment when done properly, these primitive methods have been devastating for the local environment in China.
China's domestic contribution to e-waste is substantial, with approximately 10.1 million tons generated annually, overtaking the US as the largest e-waste-producing country. This is due to China's rising economic development, technical innovation, and urbanization, which have led to increased consumption and disposal of electronics. The major sources of e-waste in China are households, domestic institutions, government agencies, businesses, and equipment manufacturers.
The growth of consumption and production of electronic products is a significant reason for the increasing waste. For example, in the US, around 151 million phones end up in landfills or incinerators annually. Overall, only 17.4% of electronic waste is properly recycled worldwide, leading to a significant financial and ecological waste. Recovering metals from electronic waste can reduce greenhouse gas emissions compared to mining for new materials.
China's formal e-waste recycling industry follows strict regulations and governmental incentives, allowing for the safe handling and recovery of raw materials. The formal recycling process includes collection, storage, sorting/dismantling/shredding, separation, and recovery. While China's formal recycling industry is quite developed, the country continues to struggle with the influx of domestic and imported e-waste, leading to environmental and health concerns.
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Indoor air pollution from solid fuels
China's rapid industrialization and economic growth have resulted in severe environmental degradation and intense levels of air pollution. While electricity generation has historically been the primary source of China's air pollution, large coal-powered industries and vehicles have increasingly contributed to the problem.
The health impacts of indoor air pollution from solid fuels are severe. According to the World Health Organization (WHO), solid fuel use in Chinese households causes approximately 420,000 premature deaths annually, with respiratory illnesses, lung cancer, chronic obstructive pulmonary disease (COPD), immune system weakening, and reduced lung function being common health outcomes. The risk of indoor air pollution is higher in rural areas due to the more extensive use of solid fuels and the prolonged exposure of residents to the pollutants over their lifetimes.
Intervention technologies, such as adding chimneys or implementing modernized bioenergy programs, can help mitigate indoor air pollution from solid fuels. However, these solutions require coordinated support from the government and the commercial sector to be effective. Additionally, the transition to cleaner energy sources, such as solar energy, and the electrification of transportation and heating sectors are crucial steps towards reducing China's carbon intensity and improving indoor air quality.
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Frequently asked questions
The main source of pollution in China varies depending on the region in question. Overall, air pollution is the most significant issue, with 2 million deaths per year attributed to it. This is largely caused by coal-burning power plants, vehicles, and unsafe industrial processes.
"White pollution" refers to the white plastic shopping bags, Styrofoam containers, and other light-coloured materials that began polluting agricultural fields, landscapes, and waterways in the 1990s. The Chinese government has since taken steps to reduce this, such as banning free plastic bags in supermarkets and shops.
The BRI lacks clear environmental guidelines and has been criticised for its lack of safety standards and worker protections. BRI-funded projects have been known to displace local populations, negatively affect water quality, pollute adjacent land, and damage fragile ecosystems.
Air pollution from China affects downwind countries, and China is also the world's largest emitter of marine plastic debris, with 1 million tons of plastic waste released into the ocean in 2017. This plastic pollution has a significant economic impact on the maritime, fishing, and tourism industries.
China has made some improvements in environmental protection in recent years, such as increasing forest cover and improving air and water quality. China has also prioritised waste management projects, both domestically and through international cooperation.
