Bengaluru’s air quality has improved on some measured indicators, but the city’s ranking in the National Clean Air Survey 2026 shows that spending and monitoring have not yet translated into a decisive urban clean-air strategy. With a score of 152.6, Bengaluru ranked 32nd among cities with populations above one million, behind Delhi, Mumbai and Hyderabad.
The ranking is not evidence that Bengaluru’s air is uniformly worse than that of every city below it. It is, however, a signal that the city’s response to pollution remains uneven. The central challenge described in the report is not the absence of programmes or measurement systems. It is the difficulty of controlling pollution at its sources: construction dust, damaged roads, open waste burning, poorly managed demolition debris and older diesel vehicles.
The Ministry of Environment, Forest and Climate Change’s National Clean Air Survey 2026 placed Lucknow first in the million-plus city category with 198 points and Indore second with 197. Hyderabad ranked 19th with 174.2 points, Delhi 21st with 172, Mumbai 28th with 160.8, Bengaluru 32nd with 152.6 and Chennai 35th with 147.7.
Bengaluru’s score represents a modest improvement over the 2025 survey, when it recorded 145.1 points and ranked 36th. The city has therefore moved up four places and increased its score, but it remains behind several large urban centres that face comparable pressures from traffic, construction, waste and rapid expansion.
The report also identifies Koramangala at 151st position in the category covering wards with populations above 30,000. The supplied report does not provide the full methodology or the complete list of indicators used to determine the survey rankings. That limitation matters because a composite score can combine several elements, including ambient air measurements, pollution-control actions and municipal implementation. The ranking should therefore be read alongside the city’s pollutant data and the enforcement systems intended to improve it.
The clearest measurable change cited for Bengaluru is in annual PM10 concentration. The city’s 2025-26 average was reported at 78, compared with 92 in 2017-18. PM10 refers to particulate matter measuring 10 micrometres or less in diameter. The report notes that these particles can impair lung function and pose serious risks for people with asthma, respiratory conditions or heart disease. It also identifies PM2.5, particles measuring 2.5 micrometres or less, as another major pollutant, although no Bengaluru-specific PM2.5 figure is provided.
This improvement in PM10 is significant, but it does not settle the question of whether the city’s clean-air policy is working effectively. A reduction from 92 to 78 indicates progress over the period cited. The lower survey ranking, compared with cities such as Lucknow, Indore and Delhi, indicates that air quality is also shaped by how consistently a city controls emissions and manages pollution sources across its urban territory.
Bengaluru air quality and the implementation gap
Under the National Clean Air Programme, Bengaluru has received Rs 541.1 crore from 2019-20 onwards, of which Rs 440.23 crore has been spent, according to the report. The programme’s stated objective in the report is to reduce PM10 by 40 per cent. This means that the city has had access to a substantial dedicated funding stream, as well as a defined pollution-reduction target.
The central institutional question is how that money is converted into routine control at street level. Bengaluru has 11 continuous ambient air quality monitoring stations and 13 manual monitoring stations. Six mobile vehicles are used for smoke measurement. These systems provide an important measurement network, but monitoring alone cannot prevent dust from escaping a construction site or waste from being burnt in an open area.
The report points to a recurring distinction between regulation on paper and enforcement in the city. Rules require construction and demolition sites to use sheet barriers and require construction debris to be transported under suitable covers. Yet the report says these requirements are not being implemented strictly. Where construction activity is continuous, weak enforcement can turn temporary dust emissions into a daily urban exposure.
This is especially relevant to Bengaluru because air pollution is linked in the report to the ordinary processes of city-building. Construction sites, road deterioration, demolition, debris movement and traffic are not isolated environmental problems. They are connected to how the city expands, how contracts are executed, how roads are maintained and how municipal agencies inspect compliance.
The report also identifies open burning of solid waste, including at waste and landfill facilities, as a continuing concern. Open burning is a source-control failure: the city must prevent the material from being burnt rather than only measure its effects after smoke enters the surrounding neighbourhood. The same applies to highly polluting vehicles. The report calls for stricter action against vehicles emitting excessive smoke and notes the continued movement of older diesel vehicles.
These problems also reveal a fragmented responsibility structure. Construction-site compliance involves builders, contractors, local authorities and pollution-control agencies. Waste burning is connected to collection, segregation, transport and disposal systems. Vehicle emissions involve enforcement agencies, transport policy and public mobility choices. A city-level clean-air target therefore depends on multiple institutions acting consistently, rather than on one department spending a dedicated grant.
What Lucknow and Indore reveal
The survey’s top-ranked cities provide a comparison, although the supplied report does not establish that their measures alone caused their rankings. Lucknow is reported to use 1,093 electric vehicles for waste collection. Indore is described as combining forest development, green corridors, integrated waste management and a move towards public transport powered by electric and compressed natural gas vehicles.
The significance of these examples lies in their wider approach. The report says these cities have focused not only on controlling dust but also on addressing pollution sources. That distinction is important for Bengaluru. Road sweeping or isolated dust suppression may reduce visible dust in particular locations, but source control requires changes to waste collection, vehicle fleets, construction logistics, road maintenance and public transport.
Bengaluru’s response, as described in the report, appears to have improved measured PM10 levels without fully resolving these source-level weaknesses. The city’s clean-air performance is therefore tied to the quality of its everyday urban management. If construction debris is uncovered, if waste is burnt, or if visibly polluting vehicles continue without effective action, the benefits of monitoring and programme expenditure will remain limited.
The report also quotes environmental expert Dr D. Paramesha Naik, who attributes the challenge to year-round construction, deteriorating roads, weak solid-waste management, open waste burning and unrestricted use of older diesel vehicles. He calls for greater use of electric vehicles and a more citizen-friendly public transport system. These comments are presented as expert assessment, not as an independently verified evaluation of each pollution source’s contribution.
For citizens, the implications are most direct near construction corridors, waste-handling locations, congested roads and areas where older diesel vehicles operate. The supplied report does not provide neighbourhood-level exposure data or health-outcome figures, so it cannot establish how much each source contributes to illness. It does establish that the city’s air-quality challenge is distributed across daily urban activity rather than confined to a single pollution hotspot.
The survey therefore presents Bengaluru with a governance test. The city has improved its PM10 figure, expanded monitoring and spent a large share of the clean-air funds cited in the report. The remaining question is whether implementation can become visible in the practices that residents encounter: covered debris transport, protected demolition sites, controlled waste disposal, action against smoke-emitting vehicles, better roads and cleaner public transport.
Bengaluru’s 2026 ranking confirms progress, but it also shows why progress cannot be measured only by funds spent or monitoring stations installed. The city’s score of 152.6 and PM10 concentration of 78 indicate movement in the right direction, while its position behind Delhi, Mumbai and several other cities signals continuing weaknesses. The next milestones are clearer enforcement of construction and waste rules, action on older diesel vehicles, improved public transport and evidence that the funds already spent are reducing pollution at its sources.
