Air Quality Monitoring Systems Market

The report "Air Quality Monitoring Systems Market by Product (indoor, outdoor, fixed, portable, wearable), Pollutant (SOX, NOX, VOC, PM 2.5, PM 10, biological), Sampling (manual, stack), End User (govt, petrochemical, residential, smart city) - Global Forecast to 2031", is projected to grow from USD 9.61 billion in 2026 and to reach USD 13.86 billion by 2031, at a Compound Annual Growth Rate (CAGR) of 7.4% during the forecast period.

Browse 200 market data Tables and 80 Figures spread through 350 Pages and in-depth TOC on "Air Quality Monitoring Systems Market by Product (indoor, outdoor, fixed, portable, wearable), Pollutant (SOX, NOX, VOC, PM 2.5, PM 10, biological), Sampling (manual, stack), End User (govt, petrochemical, residential, smart city) - Global Forecast to 2031"
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The air quality monitoring system market size is projected to grow from an estimated USD 9.61 billion in 2026 to USD 13.86 billion by 2031, at a CAGR of 7.4%.

The increase in the global air quality monitoring systems market share is due to rising air pollution from industrialization, urbanization, and increased vehicular emissions in the largest economies worldwide. Growing concerns about air pollution and its links to respiratory diseases and heart problems are being expressed by people. Hence, there has been an immense demand for continuous air pollution monitoring equipment. In addition, the strict regulations set forth by governments and environmental protection groups regarding air pollution have contributed to an increase in market share.

The stack monitoring segment is expected to register the highest growth during the forecast period (2026–2031)

Based on sampling method, the air quality monitoring systems market is segmented into active/continuous, intermittent, passive, manual, and stack monitoring. The stack monitoring segment is predicted to witness the highest CAGR during the forecast period due to increased focus on emission regulations for industries like power generation, oil & gas, chemical, cement, metal, and manufacturing. Growing environmental awareness, as well as stringent government regulations regarding industrial pollution and greenhouse gas emissions, are acting as key drivers for the adoption of stack monitoring systems to monitor emissions released through industrial stacks. Continuous emission monitoring systems (CEMS) and advanced gas analyzers are being used by industries for compliance purposes and to avoid any penalties. Besides, rapid industrialization in developing countries as well as investments in pollution control measures are fueling growth in this segment.

The fixed indoor monitors subsegment of indoor monitors held the largest market share in 2025

Based on product, the air quality monitoring systems market is classified into indoor monitors, outdoor monitors, and wearables. The indoor monitors segment is further classified into fixed indoor and portable indoor. In 2025, the fixed indoor monitors accounted for the largest share of the indoor monitors, primarily due to their extensive usage in commercial spaces, hospitals, schools, industries, and even homes to provide continuous monitoring of indoor air quality levels. Fixed indoor monitors have several advantages, such as continuous real-time monitoring, high accuracy, compatibility with HVAC systems as well as building automation systems, and reliable long-term use, for which they are extensively used over portable systems. In addition, factors such as strict safety rules at workplaces, increased usage of smart buildings, and investment in advanced building infrastructure have contributed to the leading position of this subsegment in the market.

Government agencies and academic institutes accounted for the largest share of the global air quality monitoring systems market in 2025.

The government agencies and academic institutes segment is the largest in terms of market share because of the increased emphasis on environmental protection and monitoring, pollution control, and climate monitoring in many countries. Government bodies are large-scale buyers of air quality monitoring systems since they are mainly used to set up national air monitoring networks, regulate environmental laws, monitor industrial pollution, and adhere to air quality standards. Further, academic institutions widely employ air quality monitoring systems in their studies pertaining to environmental issues, climatology, air pollution, and its impact, among others. The growth in government spending on environmental monitoring programs, increased investments in the development of smart cities and sustainability programs, and increasing research activities regarding air pollution and its effects are also propelling this segment in the market.

By region, Asia Pacific is expected to see the highest growth in the air quality monitoring systems market in 2025.

The global air quality monitoring systems market is segmented into North America, Asia Pacific, Europe, Latin America, and the Middle East & Africa.

Asia Pacific will account for the highest growth due to the fast pace of industrialization, urbanization, and increased levels of air pollution in countries such as China, India, and Southeast Asian countries. Increased population density, vehicle pollution, energy consumption rates, and industrial activities in the region require air quality monitoring services. Environmental regulations put in place by the government of the region, along with investments in air pollution monitoring facilities, are expected to drive the adoption of air quality monitoring systems. Other factors supporting the market growth include initiatives toward smart cities and investments in air pollution monitoring technologies.

As of 2025, the air quality monitoring systems market was dominated by Thermo Fisher Scientific (US), 3M (US), Siemens (Germany), Teledyne Technologies (US), GE Power (US), Emerson Electric Company (US), Honeywell International Inc (US), HORIBA, Ltd. (Japan), Merck KGaA (Germany), and TSI Incorporated (US), among others.

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