Beijing’s Air: From Smog-Choked to Serene Riverside Strolls
Fifteen years ago, the banks of Beijing’s Liangma River presented a starkly different scene. In winter, they were often deserted, shrouded in the thick, choking smog that plagued China’s major cities. Fast forward to today, and the same riverbanks are now a vibrant hub of activity, with families and elderly residents enjoying the crisp morning air, a testament to a monumental, years-long campaign to combat some of the world’s worst air quality.
This dramatic turnaround is the direct result of China’s formidable state power being channelled into ambitious environmental policies. These initiatives included the strategic relocation of polluting factories and a significant push towards electrifying the nation’s vehicle fleet. While pollution levels in many Chinese cities still occasionally exceed the World Health Organization’s (WHO) stringent guidelines, they have plummeted dramatically from the “airpocalypse” days of the past.
“It used to be really bad,” recounts Zhao, an 83-year-old resident, as she soaks up the sun by the river with friends. “Back then, when there was smog, I wouldn’t come out,” she shared, opting not to provide her full name. Today, however, the air, she enthuses, is “very fresh.”
The statistics paint a compelling picture of this progress. According to data released by the Beijing municipality in January, levels of PM2.5 – fine particulate matter that poses a serious health risk by penetrating the lungs and bloodstream – have fallen by an impressive 69.8 percent since 2013.
Nationwide, particulate pollution has seen a significant decline of 41 percent over the decade from 2014. This improvement has even translated into tangible benefits for public health, with average life expectancy in China increasing by 1.8 years, as indicated by the University of Chicago’s Air Quality Life Index (AQLI).
China’s meteoric rise and its heavy reliance on coal for energy fuelled a dramatic deterioration in air quality throughout the 2000s. This was particularly acute during the cold winter months, when prevailing weather patterns trapped pollutants close to the ground, exacerbating the problem.
Early attempts to address the issue were implemented, such as the installation of desulphurisation technology at coal power plants. Factory shutdowns and traffic control measures were also employed, leading to temporary improvements in air quality, notably for high-profile events like the 2008 Beijing Olympics.
However, the positive impact of these earlier measures proved to be short-lived, and the problem continued to worsen.
A Pivotal Action Plan: Declaring War on Pollution
The growing public awareness of the severity of air pollution played a crucial role in driving change. This awareness was amplified by factors such as the US embassy in Beijing making its air quality monitoring data publicly accessible. By 2013, the situation had become so dire that several international schools were compelled to install giant inflatable domes over their sports facilities to safeguard students from the toxic air.
That same year, multiple episodes of prolonged, dense haze enveloped Chinese cities. In October, the northeastern city of Harbin was brought to a standstill for days as PM2.5 levels soared to an astonishing 40 times the WHO’s then-recommended standard. The poignant online phrase “I’m holding your hand, but I can’t see your face” captured the despair and frustration felt by many. Later that year, a tragic case emerged of an eight-year-old becoming the country’s youngest lung cancer patient, with medical professionals directly attributing the illness to pollution.
Amidst mounting public concern, China’s ruling Communist Party unveiled a comprehensive ten-point action plan, boldly declaring “a war against pollution.” This landmark initiative ushered in an era of expanded air quality monitoring, significant improvements in factory technology, and the closure or relocation of numerous coal plants and mines. In major urban centres, vehicle restrictions were implemented, and the foundational groundwork was laid for the widespread adoption of electric vehicles.
A 2016 study highlighted the significance of this plan, noting that for the first time, “quantitative air quality improvement goals for key regions within a clear time limit” were established. Tonny Xie, director of the Bluetech Clean Air Alliance, a non-profit organisation that collaborated with the government on the plan, described these targets as “the most important measure.” He recalled the considerable debate surrounding the feasibility of these goals at the time, acknowledging they were “very ambitious.”
The policy strategically targeted several key regions, resulting in rapid reductions in PM2.5 levels between 2013 and 2017. Subsequently, this successful approach was rolled out nationwide. “Everybody, I think, would agree that this is a miracle that was achieved in China,” Xie remarked. The AQLI’s assessment last summer further underscored China’s impact, stating that the country’s success is “entirely” responsible for a global decline in pollution since 2014.
The Road Ahead: Addressing Remaining Challenges
Despite the remarkable progress, air quality in much of China still poses a significant health risk when measured against WHO standards. This past winter, major Chinese cities, including the bustling financial hub of Shanghai, frequently appeared among the world’s twenty most polluted locations on the monitoring site IQAir.
Linda Li, a running coach who has resided in both Beijing and Shanghai, noted that while air quality has improved considerably, she still experiences up to seven lost running days per month due to pollution. Last year, a senior environment official stated China’s aspiration to “basically eliminate severe air pollution by 2025.” However, the government has not yet confirmed whether this ambitious goal has been met.
Official data for 2025 indicated a 4.4 percent year-on-year decrease in nationwide average PM2.5 concentrations, with 88 percent of days experiencing “good” air quality. It is important to note, however, that China’s current definition of “good” air quality corresponds to PM2.5 levels below 35 micrograms per cubic metre, which is substantially higher than the WHO’s recommended benchmark of five micrograms. China has plans to tighten this standard to 25 by 2035.
The pace of pollution reduction has also slowed in the last five years. Chengcheng Qiu from the Centre for Research on Energy and Clean Air (CREA) explained that the “low-hanging fruits” have largely been harvested. Qiu’s research suggests a westward shift in pollution as heavy industry relocates to regions like Xinjiang, with some cities in China experiencing double-digit percentage increases in PM2.5 over the past five years.
“They can’t just stop all industrial production. They need to find cleaner ways to produce the output,” Qiu stated, emphasising the need for innovation. There is indeed optimism for future advancements, particularly given China’s prominent role as a renewable energy powerhouse, with coal generation projected to fall in 2025.
“Cleaner air ultimately rests on one clear direction,” Qiu concluded. “Move beyond fossil fuels and let clean energy power the next stage of development.”
