Kyrgyz Republic Transport Air Pollution Profile 2026

Outline

KYRGYZ REPUBLIC

TRANSPORT AIR POLLUTION PROFILE

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Background

The Kyrgyz Republic, a lower-middle income economy in Central and West Asia with a population of 7.2 million and a GDP (PPP) of $57.9 billion in 2024, has experienced modest improvements in air quality over the past two decades. The annual average population-weighted concentration of PM 2.5 decreased from 22.1 micrograms per cubic meter in 2000 to 20.1 micrograms per cubic meter in 2023, representing a gradual decline in ambient particulate pollution. However, despite this progress, the 2023 level remains four times higher than the World Health Organization's air quality guideline of 5 micrograms per cubic meter, though it stays below the interim target of 25 micrograms per cubic meter. For context, the Central and West Asia regional average stood at 30.4 micrograms per cubic meter in 2022, indicating that while the Kyrgyz Republic performs relatively better than its neighbors, significant air quality challenges persist across the region.

Transport activities contribute substantially to ambient PM 2.5 concentrations, though their relative share varies by location and season. The State of Global Air estimates that in 2019, transport contributed approximately 6.8 percent to ambient PM 2.5 concentrations, while international shipping accounted for just 0.1 percent. Urban proximity to major roadways exacerbates exposure risks, with the Institute for Transportation and Development Policy estimating that 89 percent of the country's urban population reside beyond 500 meters from highways, leaving a substantial minority in closer proximity to traffic-related pollution sources.

The health burden attributable to air pollution in the Kyrgyz Republic is considerable and imposes substantial economic costs on the nation. World Bank estimates indicate that 2,586 people died prematurely due to exposure to ambient PM 2.5 in 2019, with McDuffie et al. (2021) attributing approximately 170 of these deaths specifically to transport tailpipe emissions. In 2023, at least 10 deaths occurred due to occupational exposure to diesel engine exhausts, equivalent to approximately 1 death per million population. The annual cost of health damages from ambient and household PM 2.5 exposure amounted to $1.8 billion in 2019, representing about 5 percent of GDP—a figure that, while substantial, remains lower than the Asia-Pacific average of 10.6 percent of GDP. This comparison offers little comfort when considering that in 2022, the Kyrgyz Republic allocated only 4.9 percent of GDP to healthcare expenditure, meaning air pollution-related health costs nearly match the entire national health budget.

Transport sector emissions have exhibited complex patterns over the past two decades, shaped by economic growth, fleet composition changes, and modal shifts. Since 2010, the country's GDP has grown at an average annual rate of 8.7 percent, accompanied by evolving emission trajectories across different pollutants. PM 2.5 emissions from transport grew by 4.3 percent annually between 2000 and 2010, but this rate slowed to 1.0 percent per year between 2010 and 2022, suggesting some decoupling of transport activity from particulate emissions. By 2022, the transport sector accounted for 5 percent of total PM 2.5 emissions in the country, with road transport dominating at 97 percent of transport-related PM 2.5, followed by rail at 3 percent, while domestic navigation and domestic aviation contributed negligible shares. Within the road sector, the International Institute for Applied Systems Analysis estimates that heavy-duty vehicles are responsible for 79 percent of PM 2.5 emissions in 2025, light-duty vehicles account for 15 percent, buses contribute 6 percent, and motorcycles represent less than 1 percent.

Non-exhaust emissions constitute a significant and growing component of road transport pollution. By 2022, PM 2.5 emissions from resuspended dust, brake wear, and tire wear contributed 19 percent of road sector emissions, though this represents a decrease from 24 percent in 2010, likely reflecting changes in vehicle technology and road conditions. Nitrogen oxide (NOx) emissions from transport grew by 5.6 percent annually between 2000 and 2010 but declined by 2.4 percent per year between 2010 and 2022, a trend that contrasts with other sectors where NOx emissions continued growing at 2.5 percent annually since 2010. By 2022, transport accounted for 43 percent of total national NOx emissions, with road transport representing 97 percent of transport NOx, rail 3 percent, and negligible contributions from domestic navigation and aviation. Within the road sector, light-duty vehicles are the dominant source at 52 percent, followed by heavy-duty vehicles at 43 percent and buses at 5 percent.

The transport sector's emission profile extends beyond particulate matter and nitrogen oxides to encompass a range of pollutants with distinct temporal trends. Sulfur oxide (SOx) emissions from transport grew by a modest 0.7 percent annually between 2000 and 2010 but declined sharply by 8.9 percent per year between 2010 and 2022, likely reflecting improvements in fuel quality. By 2022, transport contributed less than 1 percent of total national SOx emissions, with road transport accounting for 75 percent of transport SOx, rail 23 percent, and domestic aviation 2 percent. Methane (CH4) emissions from transport grew by 8.1 percent annually between 2000 and 2010, then declined at an equal rate of 8.1 percent between 2010 and 2022, with road transport responsible for 100 percent of transport methane emissions by 2022. Non-methane volatile organic compounds (NMVOC) followed a similar pattern, growing by 7.2 percent annually from 2000 to 2010 before declining by 7.3 percent per year from 2010 to 2022, with the road sector accounting for 99 percent of transport NMVOC emissions.

Black carbon (BC) emissions from transport grew by 3.6 percent annually between 2000 and 2010 and continued growing, albeit more slowly at 1.4 percent per year, between 2010 and 2022. By 2022, road transport (including non-exhaust emissions) accounted for 99 percent of transport black carbon emissions, with rail contributing 1 percent and domestic navigation and aviation negligible shares. These emission patterns reflect the overwhelming dominance of road transport in the country's transport sector, a characteristic reinforced by energy consumption data showing that the road sector contributed approximately 98 percent of total transport energy consumption in 2023, while rail, domestic navigation, and domestic aviation accounted for less than 1 percent, less than 1 percent, and 2 percent respectively.

The transport sector's energy consumption remains heavily dependent on petroleum products, with limited diversification into cleaner alternatives. In 2023, oil products constituted 99 percent of transport sector energy consumption, an increase from 98 percent in 2015, indicating deepening rather than declining fossil fuel dependence. Biofuels and electricity together accounted for less than 1 percent and 1 percent of transport energy consumption respectively, reflecting nascent adoption of alternative fuels. The country's electricity grid emission factor stood at 168 grams of CO2 per kilowatt-hour in 2024, considerably lower than the Asia-Pacific average of 559 and the Central and West Asia average of 495, suggesting that electrification of transport could yield substantial emission reductions. However, the grid emission factor regressed by 0.9 percent annually since 2015, contrasting with the Asia-Pacific region where grid emissions improved by 1.4 percent per year, raising questions about the sustainability trajectory of the power sector.

Fossil fuel subsidies exacerbate the environmental and health costs of transport pollution by artificially lowering fuel prices and encouraging consumption. These subsidies incur additional external costs to society, with 34 percent of these costs manifesting as increased local air pollution.

Electric vehicle imports have grown rapidly in recent years, though from a low base, signaling emerging interest in vehicle electrification. Between 2017 and 2024, the value of electric vehicle imports reached $1.2 billion, representing 22 percent of total road vehicle imports by 2024. The composition of these imports reveals a strong preference for light-duty vehicles, which account for 98 percent of electric vehicle imports, while two-wheelers and goods vehicles/buses each represent approximately 1 percent. Despite this growth, the United Nations Environment Programme's E-mobility Readiness Index for the Kyrgyz Republic scores 64 out of 100, indicating moderate readiness with significant gaps across key dimensions: technology and market score 10 out of 100, policy 15, energy 23, and financial instruments 16. These low scores across all dimensions highlight the need for comprehensive policy interventions spanning regulatory frameworks, charging infrastructure, grid capacity, and financing mechanisms to support accelerated electric vehicle adoption.

Motorization rates have increased steadily over the past two decades, contributing to rising vehicular emissions and urban congestion. Vehicle ownership stood at 225 vehicles per thousand population in 2024, compared to 186 in 2000, representing a 21 percent increase. While this remains below the Asia-Pacific average of 317 vehicles per thousand population in 2024, the upward trajectory suggests continued growth in private vehicle ownership absent policy interventions to promote public transport and non-motorized modes. The quality and age composition of the vehicle fleet pose particular concerns, with over 83 percent of the country's 1.67 million registered vehicles in 2024 being more than 15 years old, and many lacking functioning catalytic converters and emission control systems.

Public transport accessibility remains inadequate across urban areas, limiting modal shift opportunities and reinforcing car dependence. Among the three urban agglomerations in the country, only 33 percent achieved an access level of 50 percent or better, meaning that in two-thirds of cities, eight out of ten residents do not have convenient access to public transport defined as residing within 500 meters of a transit stop. This accessibility deficit undermines efforts to reduce private vehicle use and associated emissions, as residents lack viable alternatives for daily mobility needs. The combination of poor public transport access, growing motorization, an aging vehicle fleet predominantly reliant on petroleum fuels, and persistent fuel subsidies creates an environment conducive to continued growth in transport emissions and air pollution.