Air Quality - The Times Of Central Asia

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Air Quality

Air Quality Report Shows Central Asia’s Air Getting Rapidly Worse

Tajikistan ranked as the world’s third most polluted country in 2025, according to the latest World Air Quality Report by IQAir. The report analyzed PM2.5 concentrations across 9,446 cities in 143 countries and territories. PM2.5, fine particulate matter measured in micrograms per cubic meter, is widely used as a key indicator of air pollution. The five most polluted countries in 2025 were Pakistan (67.3 µg/m³), Bangladesh (66.1 µg/m³), Tajikistan (57.3 µg/m³), Chad (53.6 µg/m³), and the Democratic Republic of the Congo (50.2 µg/m³). Only 13 countries and territories met the World Health Organization annual PM2.5 guideline of 5 µg/m³, including Australia, Iceland, and Estonia. Overall, 130 out of 143 countries exceeded the guideline. Kazakhstan records the cleanest air in Central Asia, but still had the 29th worst air globally in 2025, a very significant decline from 71st in 2024. Uzbekistan has the region's dirtiest air, and the 10th worst worldwide, while Kyrgyzstan is only slightly better, in 19th. Like Kazakhstan, both countries have fallen down the rankings since they were last put together in 2024. Kyrgyzstan had been in 41st place, while Uzbekistan has fallen from 19th. Turkmenistan, which was also among the 30 most polluted countries in 2024, was not included in the 2025 report due to a lack of available data. Karaganda in Kazakhstan is Central Asia's most polluted city, ranking 26th globally in 2025. The city recorded an annual PM2.5 level of 72.6 µg/m³, more than ten times the WHO guideline. Other heavily polluted cities in the region included Fergana (30th, 68.8 µg/m³), Dushanbe (51st, 57.3 µg/m³), Guliston (100th), and Tashkent (225th, 39 µg/m³). The report also noted that the world’s 25 most polluted cities in 2025 were all located in India, Pakistan, and China, with India accounting for three of the top four.

Air Quality

Uzbekistan Launches “Clean Air” Project to Cut Pollution by 2030

Uzbekistan has approved a nationwide environmental initiative aimed at improving air quality and reducing pollution over the next five years, according to a presidential decree published on March 25. The decree outlines the implementation of the “Clean Air” national project for 2026-2030. The program sets a target of reducing harmful emissions into the atmosphere by 10.5% and strengthening environmental monitoring across key industrial sectors. Under the plan, enterprises classified as having a significant environmental impact will be required to install automatic monitoring systems, as well as dust and gas purification equipment. The initiative also aims to reduce the number of days when air pollution levels, particularly fine particulate matter (PM2.5), exceed national safety standards. Special attention is being given to the capital. Authorities have extended the mandate of a government commission tasked with addressing environmental challenges in Tashkent until March 1, 2027. The body has also been elevated to a national-level commission, reflecting its expanded scope of responsibility. From April 1, 2026, a moratorium will be introduced on the creation of new industrial zones in Tashkent, with no specified end date. The measure is intended to limit additional pressure on the city’s already strained air quality. The decree also introduces stricter environmental requirements in the construction sector starting June 1. Developers will be required to equip building sites with environmental monitoring systems linked to a centralized database managed by the Ecology Committee. In addition, construction sites must install online surveillance cameras to ensure compliance with environmental standards. Companies found to be in violation of environmental regulations will face penalties through a rating system within the national “Transparent Construction” platform. Environmental impact assessments will also become mandatory for all major construction and urban planning projects. New building designs exceeding specified size thresholds must allocate at least 30% of land area to green spaces, reflecting a broader effort to expand urban greenery. In recent years, air quality in Tashkent has deteriorated significantly. Experts attribute the problem to industrial emissions, seasonal dust storms, rapid urban development, and the loss of green spaces. Despite a formal ban, an estimated 49,000 trees have been cut down since 2019. According to the Ministry of Ecology, PM2.5 levels in the capital frequently exceed World Health Organization guidelines. During severe smog episodes in early 2024, pollution levels reached up to 22 times the recommended annual limits, posing serious risks to public health.

Air Pollution

Report Reveals Persistently High Air Pollution Levels in Bishkek and Osh

Air pollution remains one of Kyrgyzstan’s most serious environmental challenges, particularly in the cities of Bishkek and Osh, where coal-based heating and motor vehicle emissions are identified as the main sources of pollution, according to a report by the environmental organisation MoveGreen. The study, covering the period from December 2024 to November 2025, found that Bishkek experienced between 118 and 120 days during which concentrations of fine particulate matter (PM2.5) exceeded permissible limits. Average annual levels were estimated at between 44 and 47 micrograms per cubic meter, significantly above the World Health Organization’s recommended guideline of 5 micrograms per cubic meter. Air quality in the capital shows strong seasonal variation. Pollution levels rise sharply during winter due to increased coal consumption for heating and the accumulation of emissions linked to the city’s geographical setting. As a result, Bishkek has frequently ranked among the world’s most polluted urban areas in international air quality monitoring indices. In Osh, pollution patterns were described as more stable but still concerning. Elevated PM2.5 levels were recorded for 159 days during the study period, nearly half the year. The city’s average annual concentration reached 74 micrograms per cubic meter, far exceeding international health recommendations. The report’s authors also noted that concentrations of other pollutants, including nitrogen oxides and formaldehyde, tend to increase during warmer months. Among the key recommendations outlined in the study are a gradual transition to cleaner heating sources, expansion and modernisation of public transport systems, measures to reduce dust pollution in urban areas, and improvements in air quality monitoring infrastructure.

Traffic regulations

Kazakhstan May Introduce Traffic Restrictions Based on Beijing Model

Kazakhstan’s Ministry of Ecology and Natural Resources has proposed that city authorities draw on Beijing’s experience in restricting private vehicle traffic on days with unfavorable weather conditions as part of efforts to combat air pollution. Beijing has operated an “even-odd” traffic system since 2011, under which vehicles with even-numbered license plates may drive on even dates, and those with odd-numbered plates on odd dates. While the measure in the Chinese capital was initially introduced to reduce traffic congestion, in Kazakhstan, it is being considered primarily as a tool to improve air quality. After reviewing Beijing’s practice, the ministry has instructed local authorities and regional environmental departments to prepare air protection plans for 2026-2028, including the possible introduction of similar restrictions. The ministry cited data from Kazhydromet indicating that by the end of 2025, eleven cities in Kazakhstan are expected to record persistently high levels of air pollution. The most affected cities remain Almaty, Ust-Kamenogorsk, Karaganda, Temirtau, and Aktobe. Despite the modernization of major industrial facilities and the adoption of best available technologies, a significant share of emissions originates from smaller sources, including motor vehicles, private households, and small businesses. In Almaty, approximately 60% of emissions are attributed to transport, while a further 12% comes from private homes and small boiler houses. A similar pattern is observed in Ust-Kamenogorsk. In response, the Ministry of Ecology has proposed that city authorities not only consider temporary traffic restrictions during periods of unfavorable weather but also accelerate the transition of public transport and taxis to electric and gas-powered vehicles, establish green belts around industrial zones, subsidize the gasification of private homes, promote connections to centralized heating systems, and ban the use of solid fuels in catering establishments and small boiler houses. The Times of Central Asia previously reported that the most severe smog and adverse weather conditions have recently been recorded in Ust-Kamenogorsk.

Air Pollution

Bishkek’s Air Pollution Crisis Comes Under Parliamentary Scrutiny

On February 2, Kyrgyzstan’s parliamentary committee on ecology and environmental protection convened to hear reports from senior officials on the worsening air pollution and winter smog in the capital. Air pollution remains a chronic challenge in Bishkek, a city of over one million residents. Conditions worsen sharply in winter, when widespread coal burning for heating and emissions from an aging vehicle fleet accumulate in the city’s basin-like topography. Bishkek consistently ranks among the world’s 10 most polluted cities on IQAir’s global air quality index. In January 2026 alone, the city appeared in the top five on at least eight separate days. Minister of Natural Resources, Ecology, and Technical Supervision Meder Mashiev told lawmakers that the primary sources of pollution are household coal burning (40%), vehicle emissions (30%), the city’s coal-fired thermal power plant (15%), wind-blown dust (13.5%), and industrial activity (1.5%). Mashiev underscored that vehicle emissions are a particularly significant contributor to the city’s smog. According to Mashiev, Kyrgyzstan has more than 1.9 million vehicles, a 13% increase compared to 2024. Of these, 972,000 run on gasoline, 339,000 on diesel, 56,900 on gas, and 37,000 are hybrids. Electric vehicles make up just 0.8% of the total, numbering around 15,200. An estimated 600,000-700,000 vehicles, more than 30% of the national total, are located in Bishkek. More than half are over 15 years old, contributing significantly to harmful emissions. Jarkynbek Kasymbekov, Director of the National Institute of Public Health, outlined the health implications. He reported a 2.5-fold increase in allergic rhinitis cases nationwide, particularly among young people, a trend he linked directly to poor air quality. While long-term studies are lacking, the rise in respiratory illnesses is well documented. Mashiev highlighted several measures taken in 2025 to address the crisis. Fifty-four residential areas in Bishkek were connected to natural gas, enabling more than 51,000 households to switch from coal heating. This transition is estimated to have reduced coal consumption in the capital by 100,000 tons. He also reported the long-awaited extinguishing of Bishkek’s decades-old smoldering landfill. A new waste-to-energy facility has been launched at the site, now generating electricity by incinerating solid waste. Additional efforts are underway to modernize urban transport and expand green spaces. “Work is currently underway to transition to environmentally friendly transport. A total of 1,447 gas-powered eco-buses and 120 electric buses now operate in Bishkek. There are already more than 100 electric charging stations in the city, and over 2,000 applications for new stations are under review,” Mashiev said. Bishkek Mayor Aibek Junushaliev added that 18,000 trees were planted in the capital last year, with plans to plant another 50,000 in 2026. Parliamentary committee chairman Bakyt Tentishev raised concerns about vehicles operating without catalytic converters. Kyrgyzstan is preparing to tighten environmental regulations on motor vehicles. A draft law currently under public discussion would mandate the presence and functionality of catalytic converters in vehicles originally manufactured with them. The absence of these devices significantly increases toxic emissions and fuel consumption, posing direct risks to public health.

Air Pollution

Tashkent Choked by Smog: What 2025 Revealed and How Residents Are Responding

The year 2025 proved especially challenging for air quality in Uzbekistan’s capital, with Tashkent repeatedly ranking among the world’s most polluted cities during peak smog episodes. At times, short-term air quality readings placed it alongside major Asian megacities during severe pollution spikes. These rankings were more than just statistics. Thick smog became a daily reality for residents, disrupting everyday life and intensifying concerns over public health and long-term environmental sustainability. Coal, Cars, and Construction: What’s Fueling the Smog Officials from Uzbekistan’s Ministry of Ecology and independent environmental researchers say Tashkent’s air pollution is primarily caused by human activity. The heaviest blow came from municipal furnaces and boiler houses. Amid ongoing natural gas shortages, many public facilities, including schools, kindergartens, and hospitals, were converted to coal or fuel oil, resulting in a surge of emissions. Uzbekistan’s coal consumption jumped from 3.9 million tons in 2019 to 6.7 million tons in 2023. Emissions from these sources accumulate in the lower atmosphere during the cold season, exacerbating pollution. Vehicle emissions are another major contributor. Tashkent has approximately 193 vehicles per 1,000 residents, roughly double the national average. Many cars run on low-octane AI-80 gasoline, which contains high levels of harmful impurities. While coal use has surged, vehicle emissions remain a serious issue. In 2019, motor transport accounted for the majority of urban air emissions in several districts of the city. Adding to the problem are industrial plants on the city’s outskirts, frequent dust storms during dry seasons, and unregulated urban development. High-rise construction has created wind barriers that disrupt air circulation, while green spaces, Tashkent’s natural air filters, have steadily disappeared. Despite an official moratorium on tree cutting, official and environmental group estimates indicate that around 49,000 trees have been felled since 2019, often by developers who face only minimal penalties. According to Uzbekistan’s Ministry of Ecology, PM2.5 concentrations in Tashkent routinely exceed World Health Organization guidelines. During peak smog episodes in early February 2024, pollutant levels were recorded at up to 22 times the WHO’s recommended annual limits. These fine particles penetrate deep into the lungs, triggering allergies, inflammation, and cardiovascular issues. A 2019 World Bank report cited air pollution as the cause of 89 deaths per 100,000 people in Uzbekistan, the highest rate in Central Asia. Winter smog episodes have intensified since then. Living Under a Haze: Residents Speak Out For many Tashkent residents, smog has become part of everyday life. People commonly report throat and eye irritation, a constant dusty haze, and difficulty breathing. “It’s dusty and hard to breathe, you feel it all the time,” said Victoria Son, 18, a student at Bucheon University. Karina Sagidullina, 19, a videographer and programmer with severe dust allergies, said the polluted air significantly affects her health. “My nose often gets blocked, I sneeze a lot. I have to do wet cleaning at home every day,” she said. Some residents, however, say they are less affected. “So far, I don’t really feel the air pollution. I breathe normally and don’t wear a mask,”...