Air Quality Monitoring System Market Summary

The global air quality monitoring system market size was estimated at USD 5.80 billion in 2024 and is projected to reach USD 8.89 billion by 2030, growing at a CAGR of 7.5% from 2025 to 2030. Technological advancements, such as IoT and improved sensor technologies, are transforming the way air quality data is collected, analyzed, and applied. These innovations support a more proactive and informed approach to monitoring pollution, enabling stakeholders to better understand environmental risks and address the growing challenges related to public health and ecological sustainability. The integration of advanced digital tools strengthens decision-making and enhances the efficiency of pollution control measures.

IoT technology enables the interconnection of physical devices, such as air quality sensors, through the internet, allowing them to communicate and exchange data with each other and with centralized systems. This connectivity transforms traditional air quality monitoring systems into dynamic, interconnected networks capable of delivering comprehensive and highly detailed insights into pollution trends in real time. By supporting continuous data flow, IoT-based systems offer improved detection of pollutant sources, faster response capabilities, and more accurate forecasting. IoT connectivity also facilitates the development of smart, connected monitoring solutions that align with broader smart city frameworks. These solutions can be seamlessly integrated with traffic management, weather forecasting, and public health systems to create coordinated and effective responses to deteriorating air quality.

Key Market Trends & Insights

• North America air quality monitoring system market dominated the global market with a revenue share of over 36% in 2024. The region’s leadership is driven by stringent environmental regulations, rising awareness of pollution-related health issues, and significant investments in advanced monitoring infrastructure across urban and industrial areas.
• The air quality monitoring system market in the U.S. is expected to grow at a CAGR from 2025 to 2030, supported by federal and state-level initiatives aimed at improving air quality standards, expanding monitoring networks, and adopting advanced technological solutions to address increasing pollution concerns.
• Based on product, the outdoor air quality monitoring segment led the market, accounting for over 65% of the global revenue in 2024. The dominance of this segment is attributed to the growing need for monitoring ambient air quality in urban centers, industrial zones, transportation hubs, and environmentally sensitive areas.
• Based on pollutants, the chemical segment accounted for the largest market revenue share in 2024. This is primarily due to the widespread presence of chemical pollutants such as nitrogen oxides, sulfur dioxide, carbon monoxide, and volatile organic compounds, which require continuous and accurate monitoring to ensure compliance with regulatory standards.
• Based on components, the hardware segment accounted for the largest revenue share in 2024. The high demand for sensors, analyzers, detectors, and other monitoring equipment drives the growth of this segment, as reliable hardware forms the foundation of any effective air quality monitoring system.

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Market Size & Forecast

• 2024 Market Size: USD 5.80 billion
• 2030 Projected Market Size: USD 8.89 billion
• CAGR (2025-2030): 7.5%
• North America: Largest market in 2024
• Asia-Pacific: Fastest growing market

Key Companies & Market Share Insights

Leading companies in the market, including General Electric, Aeroqual, Emerson Electric Co., Siemens, Merck KGaA, and Teledyne Technologies Incorporated, are actively implementing strategies to broaden their reach and strengthen their market position. These companies are advancing their offerings through partnerships, mergers, acquisitions, and collaborations, and developing innovative products and technologies that incorporate AI to enhance contract management solutions. This approach enables them to keep pace with the increasing demands for security and operational transparency within the industry. By proactively evolving their technological capabilities, they aim to meet shifting market needs and reinforce their competitive advantage.

• General Electric focuses on providing advanced air quality monitoring solutions that utilize IoT and analytics to capture real-time environmental data. Their solutions are often used in industries where emissions management is crucial, such as manufacturing and power generation, to help clients comply with environmental regulations. By integrating AI, GE’s systems not only monitor but also analyze pollution levels, providing actionable insights for industries to optimize processes and reduce emissions. This approach not only improves air quality but also enhances operational efficiency, helping companies meet both regulatory standards and sustainability goals.
• Aeroqual specializes in designing and manufacturing air quality monitoring devices that range from portable monitors to large-scale integrated systems for both indoor and outdoor environments. Their monitors are known for high precision and user-friendly design, catering to diverse applications, from research and environmental assessment to industrial compliance monitoring. Aeroqual is also proactive in developing AI-driven technologies that improve data accuracy and offer predictive analytics, allowing businesses and governments to anticipate and respond to air quality issues more effectively. With a strong focus on accuracy and innovation, Aeroqual supports real-time air quality data monitoring and contributes to effective decision-making across sectors.

Key Players

• 3M
• General Electric
• HORIBA Scientific
• Aeroqual
• Emerson Electric Co.
• Siemens
• Merck KGaA
• Teledyne Technologies Incorporated.
• Testo SE & Co. KGaA
• Thermo Fisher Scientific Inc.

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Conclusion

The global air quality monitoring system market is poised for steady growth as governments, industries, and communities increasingly prioritize environmental sustainability and public health protection. Advancements in IoT and sensor technologies are enabling more intelligent, responsive, and data-driven monitoring solutions that support timely decision-making. With North America maintaining a strong market position and the U.S. advancing rapidly through regulatory initiatives, the industry is set to benefit from rising investments and technological integration. As outdoor monitoring, chemical pollutant detection, and hardware components continue to dominate, the market will play a crucial role in shaping cleaner, healthier, and more resilient environments worldwide.