Emission Monitoring Systems Market Size & Share Analysis - Growth Trends & Forecasts (2025 - 2030)

The Emission Monitoring Market Report is Segmented by System Type (Continuous Emission Monitoring Systems (CEMS), and Predictive Emission Monitoring Systems (PEMS)), Component (Hardware, Software, and Services), Monitoring Technology (Extractive, Dilution, and In-Situ), End-User Industry (Power Generation, Oil and Gas, Metals and Mining, and More), and Geography. The Market Forecasts are Provided in Terms of Value (USD).

Emission Monitoring Systems Market Size and Share

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Emission Monitoring Systems Market Analysis by Mordor Intelligence

The emission monitoring systems market is valued at USD 3.47 billion in 2025 and is forecast to reach USD 4.96 billion by 2030, advancing at a 7.41% CAGR. Stricter air-pollution rules and the direct monetization of carbon under the EU Emissions Trading System Phase IV are raising demand for higher-accuracy stack monitors, while the shift toward hybrid continuous–predictive architectures is redefining vendor strategies. Hardware still generates the largest revenue stream, holding 46% of 2024 sales, yet services are expanding fastest at a 7.7% CAGR as users seek calibration, certification, and data-management support. North America leads in installed base, but Asia Pacific records the highest 10% regional growth as China and India impose new plant-level limits. In-situ laser analyzers, particularly TDLS, are rapidly displacing extractive systems in waste-to-energy plants, lowering lifecycle outlays by roughly 30%. Simultaneously, AI-enabled software modules are turning compliance data into predictive-maintenance and process-optimization tools that trim operating costs by 15-20%.

Key Report Takeaways

  • By system type, Continuous Emission Monitoring Systems retained 71% of the emission monitoring systems market share in 2024; Predictive Emission Monitoring Systems are projected to grow at an 8.4% CAGR through 2030.
  • By component, hardware dominated with 46% revenue share in 2024, while services represent the fastest expansion at a 7.7% CAGR to 2030.
  • By monitoring technology, extractive solutions held 52% of the emission monitoring systems market size in 2024; in-situ laser technologies are forecast to rise at a 10.2% CAGR between 2025-2030.
  • By end-user industry, power generation captured 34% of the emission monitoring systems market size in 2024, whereas waste-to-energy facilities are advancing at a 9.8% CAGR to 2030.
  • By geography, North America led with a 39% revenue share in 2024, while Asia Pacific is set to post the highest 10% CAGR through 2030.

Segment Analysis

By System Type: Hybrid setups realign cost and compliance objectives

The segment opened 2024 with CEMS owning 71% of revenue thanks to universal regulatory acceptance. However, PEMS is outpacing at an 8.4% CAGR as cloud compute charges fall and regulators endorse predictive algorithms. The emission monitoring systems market size linked to hybrid deployments is projected to cross USD 1 billion by 2027, reflecting steadily rising adoption where processes run under steady-state conditions. Oil refineries, gas turbines, and petrochemical crackers see tight correlations between temperature, O₂, and pollutant outputs, making them prime candidates. Vendors that package turnkey data-science support gain leverage, because many plant engineers lack modeling expertise. Incremental software subscriptions also give suppliers annuity revenue, shifting away from lumpy hardware sales.

CEMS remains irreplaceable for primary pollutants such as SO₂ and particulate matter where laws demand direct readings. As a result, hybrid configurations that pair a compact analyzer for critical gases with PEMS for secondary streams dominate new bids. The approach lets operators balance compliance rigor and budget, preserving CEMS integrity while harvesting PEMS cost savings. Within this model, the emission monitoring systems market share of pure predictive installations is unlikely to top 10% by 2030, yet hybrid value will mount steadily as AI tools improve and field data builds confidence.

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By Component: Service revenue accelerates amid regulatory complexity

Gas analyzers, flow sensors, and probes generated 46% of global turnover in 2024, led by multi-component FTIR and TDLS instruments that command premium pricing in cement, steel, and waste-to-energy. Nevertheless, recurring service contracts—calibration, certification, and data validation—now advance at a 7.7% CAGR. New trading schemes such as national carbon markets in Canada and South Korea raise the stakes for data accuracy, prompting annual or semi-annual audits. End-users lacking internal metrology teams outsource compliance assurance, making service specialists pivotal across the emission monitoring systems market.

Cloud-native software modules add another growth lever. Suppliers bundle automated compliance reports that map directly to EU or EPA templates, cutting administrative workload. Subscription revenue is rising 18% annually, reshaping financial models. Some OEMs have introduced emissions-monitoring-as-a-service plans that combine hardware leases with full-scope maintenance, smoothing customer cash out-flows. This recurring model should gradually dilute lump-sum hardware dependence and diversify income streams in the emission monitoring systems industry.

By Monitoring Technology: In-situ lasers disrupt extractive incumbency

Extractive designs held 52% share in 2024, valued for multi-gas versatility and deep certification history. Yet in-situ laser systems post a 10.2% CAGR through 2030, riding advances in optics that withstand corrosive and dusty flows. Plants save on chillers, pumps, and filters normally required for sample conditioning, reducing annual spend by around 35%. TDLS units also deliver millisecond response time, enabling tighter combustion control. Waste-to-energy and cement customers note uptime gains that offset higher capex within two years.

Cold-dry extractive analyzers still dominate in multiparameter tasks where regulators stipulate identical sampling lines for all pollutants. Dilution-based approaches persist in petrochemical fence-line monitoring, though rising optical coverage is eroding demand. Over the coming decade, the emission monitoring systems market size for hybrid solutions that pair an in-situ laser for key gases with a compact extractive rack for metals or dioxins will widen, especially in space-constrained retrofits where analyzer shelters are impractical.

Emission Monitoring Systems Market
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Note: Segment shares of all individual segments available upon report purchase

By End-User Industry: Waste-to-energy becomes the innovation test bed

Power producers commanded 34% revenue in 2024, yet growth is modest as many coal stations near retirement. Combined-cycle gas turbines add volume in regions phasing out coal, but their comparatively low emissions limit analyzer complexity. In contrast, waste-to-energy plants expand at a 9.8% CAGR, pushing innovation in multi-pollutant monitoring that covers HF, HCl, dioxins, and heavy metals. Operators value compact laser analyzers that outlast corrosive flue gas and deliver near-continuous uptime, aligning with public-facing transparency mandates.

Maritime applications are emerging after IMO rules took effect in 2023. Roughly 9,000 vessels-15% of the world fleet-now carry some form of ship-borne emissions monitor. Space, vibration, and salt-spray constraints drive demand for rugged, miniaturized analyzers. Oil-and-gas midstream and downstream facilities remain core buyers, yet incremental growth resides in petrochemical tank farms where vapors previously escaped measurement. The emission monitoring systems market share associated with these specialized niches should rise as regulators close loopholes.

Geography Analysis

North America headed the 2024 rankings with 39% revenue, anchored by roughly 15,000 installed CEMS units across power and refining. Inflation Reduction Act incentives prompt utilities to modernize analyzers, while Canada’s output-based pricing system spreads monitoring into mid-size manufacturing. Retrofit projects dominate order books because many units installed before 2015 reach end-of-life. Integration with cloud dashboards that link compliance data to maintenance planning is now standard practice, and this digital overlay influences most competitive bids.

Asia Pacific is the fastest-growing region at a 10% CAGR. China’s 14th Five-Year Plan compels around 80,000 plants to install monitors, often leapfrogging directly to in-situ lasers. India’s National Clean Air Programme mandates continuous stacks at more than 200 coal stations by 2026, compressing buying cycles. Advanced analyzer vendors partner with local system integrators to navigate procurement rules and service coverage gaps. Japan and South Korea already operate mature fleets but continue to upgrade to TDLS and quantum-cascade platforms, especially in waste-to-energy. Southeast Asia mirrors Chinese standards; Vietnam and Indonesia published guidelines modeled on GB standards in 2024, widening the install base for the emission monitoring systems market.

Europe represents 25% of global value, uniquely shaped by carbon-price exposure under the EU-ETS, which elevates data-quality requirements. Eastern-member expansion drives first-install volumes, while Western-EU users focus on uptime and cost-of-ownership gains. Service revenue is proportionally higher because annual calibrations and parallel-sampling tests are mandatory. The Middle East and Africa are nascent but promising: Saudi Arabia’s Vision 2030 ties emissions targets to industrial diversification, and South Africa’s carbon tax accelerates monitoring adoption in mining and power. Harsh-environment resilience-high dust, heat, and salinity-forms a technical differentiator for vendors chasing these frontier opportunities

Emission Monitoring Systems Market
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Competitive Landscape

The emission monitoring systems market is moderately concentrated; the top five suppliers-ABB, Siemens, Emerson, Thermo Fisher Scientific, and AMETEK-collectively held about 45% of 2024 revenue. Their strength stems from combining analyzers with broader automation suites, letting customers align environmental compliance with process control. This integration edge is critical as end-users aim to mine emissions data for efficiency improvements. Platform players deepened portfolios through targeted acquisitions, such as Emerson’s 2025 purchase of ENVEA, which added optical-monitoring and ambient-air lines.

Pure-play companies counter by specializing in high-performance niches: Teledyne leverages quantum-cascade laser IP for ultratrace measurement, while Fuji Electric and HORIBA dominate domestic Japanese and Chinese markets through localized support. Competition now extends beyond hardware: Microsoft’s alliance with Siemens embeds Azure IoT analytics into compliance workflows, illustrating how software giants can reshape value capture. Meanwhile, marine-sector specialists develop compact monitors that satisfy class-society approvals, an arena still underserved by the mainstream automation majors.

White-space remains for simplified, low-maintenance packages aimed at small and medium enterprises that newly fall under emissions rules. Subscription-based “monitoring-as-a-service” models, pioneered by Honeywell in late 2024, lower capital barriers and lock customers into multi-year contracts. As AI modules mature, differentiation will hinge on predictive insights rather than sensor count. These dynamics are expected to keep M&A active as incumbents seek data-science talent and software IP to defend share in a rapidly digitizing emission monitoring systems market.

Emission Monitoring Systems Industry Leaders

  1. ABB Ltd.

  2. AMETEK, Inc.

  3. Emerson Electric Co.

  4. General Electric Company

  5. Siemens AG

  6. *Disclaimer: Major Players sorted in no particular order
Emission Monitoring Systems Market Concentration
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Recent Industry Developments

  • March 2025: ABB launched the ACF5000 FTIR analyzer with 12-month maintenance intervals and built-in machine-learning calibration.
  • March 2025: Siemens and Microsoft formed a partnership to deliver cloud-based emissions-monitoring and carbon-accounting tools on Azure IoT.
  • February 2025: Emerson acquired ENVEA Global SAS for USD 780 million, expanding optical and ambient-air monitoring capabilities.
  • January 2025: Thermo Fisher Scientific introduced the Mercury Freedom System with <0.5 µg/m³ detection limits.
  • December 2024: SICK AG released the DUSTHUNTER 3 laser particulate monitor featuring self-alignment and 95% less maintenance than opacity meters

Table of Contents for Emission Monitoring Systems Industry Report

1. INTRODUCTION

  • 1.1 Study Assumptions and Market Definition
  • 1.2 Scope of the Study

2. RESEARCH METHODOLOGY

3. EXECUTIVE SUMMARY

4. MARKET LANDSCAPE

  • 4.1 Market Overview
  • 4.2 Market Drivers
    • 4.2.1 Transition from CAPEX-heavy CEMS to Hybrid CEMS-PEMS Architectures in Europe
    • 4.2.2 Mandatory EU-ETS Phase-IV Carbon Pricing Driving Stack-Level Monitoring (Europe)
    • 4.2.3 Inflation Reduction Act Tax-Credit Verification Creating Surge in United States Power-Plant CEMS Retrofits
    • 4.2.4 In-situ Laser-Based Sensors Cutting Lifecycle Cost by 30 % in Asia-Pacific Waste-to-Energy Plants
    • 4.2.5 National Clean Air Programme Accelerating Coal-Fired CEMS Roll-outs (India)
    • 4.2.6 IMO 2023 EEXI and CII Rules Triggering Ship-board SEMS Installations (Global Maritime)
  • 4.3 Market Restraints
    • 4.3.1 Scarcity of TÜV and MCERTS-Certified Technicians Delaying European Commissioning
    • 4.3.2 High Humidity Bias in Tropical Regions Raising False-Compliance Risk
    • 4.3.3 Legacy DCS-DAQ Inter-operability Gaps Inflating Retrofit Costs in United States Utilities
    • 4.3.4 Capital Lock-In from Long-Term CEMS Leasing Models Hindering PEMS Adoption (MEA)
  • 4.4 Industry Ecosystem Analysis
  • 4.5 Technological Outlook
  • 4.6 Porter's Five Forces Analysis
    • 4.6.1 Bargaining Power of Suppliers
    • 4.6.2 Bargaining Power of Buyers
    • 4.6.3 Threat of New Entrants
    • 4.6.4 Threat of Substitutes
    • 4.6.5 Intensity of Competitive Rivalry

5. MARKET SIZE AND GROWTH FORECASTS (VALUES)

  • 5.1 By System Type
    • 5.1.1 Continuous Emission Monitoring Systems (CEMS)
    • 5.1.2 Predictive Emission Monitoring Systems (PEMS)
  • 5.2 By Component
    • 5.2.1 Hardware
    • 5.2.1.1 Gas Analyzers
    • 5.2.1.2 Flow and Opacity Monitors
    • 5.2.1.3 Data Acquisition Systems (DAS)
    • 5.2.2 Software
    • 5.2.2.1 Stand-alone
    • 5.2.2.2 Cloud-Hosted
    • 5.2.3 Services
    • 5.2.3.1 Installation and Deployment
    • 5.2.3.2 Calibration and Certification
    • 5.2.3.3 Support and Maintenance
  • 5.3 By Monitoring Technology
    • 5.3.1 Extractive
    • 5.3.1.1 Hot-Wet
    • 5.3.1.2 Cold-Dry
    • 5.3.2 Dilution
    • 5.3.3 In-situ
    • 5.3.3.1 Tunable Diode Laser Spectroscopy (TDLS)
  • 5.4 By End-User Industry
    • 5.4.1 Power Generation
    • 5.4.1.1 Coal-Fired
    • 5.4.1.2 Combined-cycle Gas Turbines
    • 5.4.2 Oil and Gas
    • 5.4.2.1 Upstream
    • 5.4.2.2 Midstream
    • 5.4.2.3 Downstream and Refineries
    • 5.4.3 Metals and Mining
    • 5.4.4 Chemicals and Petrochemicals
    • 5.4.5 Pharmaceuticals
    • 5.4.6 Cement and Aggregates
    • 5.4.7 Pulp and Paper
    • 5.4.8 Waste-to-Energy and Incineration
    • 5.4.9 Maritime (Ship-board)
  • 5.5 By Geography
    • 5.5.1 North America
    • 5.5.1.1 United States
    • 5.5.1.2 Canada
    • 5.5.1.3 Mexico
    • 5.5.2 Europe
    • 5.5.2.1 Germany
    • 5.5.2.2 United Kingdom
    • 5.5.2.3 France
    • 5.5.2.4 Italy
    • 5.5.2.5 Spain
    • 5.5.2.6 Rest of Europe
    • 5.5.3 Asia-Pacific
    • 5.5.3.1 China
    • 5.5.3.2 Japan
    • 5.5.3.3 South Korea
    • 5.5.3.4 India
    • 5.5.3.5 South East Asia
    • 5.5.3.6 Rest of Asia-Pacific
    • 5.5.4 South America
    • 5.5.4.1 Brazil
    • 5.5.4.2 Rest of South America
    • 5.5.5 Middle East and Africa
    • 5.5.5.1 Middle East
    • 5.5.5.1.1 United Arab Emirates
    • 5.5.5.1.2 Saudi Arabia
    • 5.5.5.1.3 Rest of Middle East
    • 5.5.5.2 Africa
    • 5.5.5.2.1 South Africa
    • 5.5.5.2.2 Rest of Africa

6. COMPETITIVE LANDSCAPE

  • 6.1 Market Concentration
  • 6.2 Strategic Moves
  • 6.3 Market Share Analysis
  • 6.4 Company Profiles (includes Global level Overview, Market level overview, Core Segments, Financials as available, Strategic Information, Market Rank/Share for key companies, Products and Services, and Recent Developments)
    • 6.4.1 ABB Ltd.
    • 6.4.2 Siemens AG
    • 6.4.3 Emerson Electric Co.
    • 6.4.4 Thermo Fisher Scientific Inc.
    • 6.4.5 AMETEK Inc.
    • 6.4.6 Honeywell International Inc.
    • 6.4.7 Teledyne Technologies Inc.
    • 6.4.8 HORIBA Ltd.
    • 6.4.9 SICK AG
    • 6.4.10 Rockwell Automation Inc.
    • 6.4.11 General Electric Company
    • 6.4.12 Fuji Electric Co. Ltd.
    • 6.4.13 Advanced Emissions Solutions Inc.
    • 6.4.14 ENVEA Global SAS
    • 6.4.15 Parker Hannifin Corp.
    • 6.4.16 Baker Hughes Co.
    • 6.4.17 Cemtrex Inc.
    • 6.4.18 Babcock and Wilcox Enterprises Inc.
    • 6.4.19 Opsis AB
    • 6.4.20 Altech Environment U.S.A.

7. MARKET OPPORTUNITIES AND FUTURE OUTLOOK

  • 7.1 White-space and Unmet-Need Assessment
*List of vendors is dynamic and will be updated based on customized study scope
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Global Emission Monitoring Systems Market Report Scope

Emission monitoring systems are used to monitor various gases, such as oxygen, carbon monoxide, and carbon dioxide, to furnish adequate information for combustion control in the industrial environment. These systems are a means to adhere to air emission standards, followed by various regulatory bodies across the world.

The report covers various type of emissions monitoring systems, ranging from hardware, software, and services that are used by different end users across various geographies.

By System Type Continuous Emission Monitoring Systems (CEMS)
Predictive Emission Monitoring Systems (PEMS)
By Component Hardware Gas Analyzers
Flow and Opacity Monitors
Data Acquisition Systems (DAS)
Software Stand-alone
Cloud-Hosted
Services Installation and Deployment
Calibration and Certification
Support and Maintenance
By Monitoring Technology Extractive Hot-Wet
Cold-Dry
Dilution
In-situ Tunable Diode Laser Spectroscopy (TDLS)
By End-User Industry Power Generation Coal-Fired
Combined-cycle Gas Turbines
Oil and Gas Upstream
Midstream
Downstream and Refineries
Metals and Mining
Chemicals and Petrochemicals
Pharmaceuticals
Cement and Aggregates
Pulp and Paper
Waste-to-Energy and Incineration
Maritime (Ship-board)
By Geography North America United States
Canada
Mexico
Europe Germany
United Kingdom
France
Italy
Spain
Rest of Europe
Asia-Pacific China
Japan
South Korea
India
South East Asia
Rest of Asia-Pacific
South America Brazil
Rest of South America
Middle East and Africa Middle East United Arab Emirates
Saudi Arabia
Rest of Middle East
Africa South Africa
Rest of Africa
By System Type
Continuous Emission Monitoring Systems (CEMS)
Predictive Emission Monitoring Systems (PEMS)
By Component
Hardware Gas Analyzers
Flow and Opacity Monitors
Data Acquisition Systems (DAS)
Software Stand-alone
Cloud-Hosted
Services Installation and Deployment
Calibration and Certification
Support and Maintenance
By Monitoring Technology
Extractive Hot-Wet
Cold-Dry
Dilution
In-situ Tunable Diode Laser Spectroscopy (TDLS)
By End-User Industry
Power Generation Coal-Fired
Combined-cycle Gas Turbines
Oil and Gas Upstream
Midstream
Downstream and Refineries
Metals and Mining
Chemicals and Petrochemicals
Pharmaceuticals
Cement and Aggregates
Pulp and Paper
Waste-to-Energy and Incineration
Maritime (Ship-board)
By Geography
North America United States
Canada
Mexico
Europe Germany
United Kingdom
France
Italy
Spain
Rest of Europe
Asia-Pacific China
Japan
South Korea
India
South East Asia
Rest of Asia-Pacific
South America Brazil
Rest of South America
Middle East and Africa Middle East United Arab Emirates
Saudi Arabia
Rest of Middle East
Africa South Africa
Rest of Africa
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Key Questions Answered in the Report

Hat is driving the rapid growth of the emission monitoring systems market?

Stricter global regulations such as EU-ETS Phase IV, the U.S. Inflation Reduction Act, and Asia Pacific clean-air mandates are compelling industrial plants to install higher-accuracy monitors, producing a 7.41% CAGR through 2030.

How large is the emission monitoring systems market size today?

The market stands at USD 3.47 billion in 2025 and is projected to reach USD 4.96 billion by 2030.

Which monitoring technology is gaining share most quickly?

In-situ laser analyzers—chiefly TDLS—are rising at a 10.2% CAGR because they cut lifecycle costs by about 30% in waste-to-energy and similar harsh-flue environments.

Why are services expanding faster than hardware?

Increasing calibration complexity under carbon-pricing schemes and a shortage of certified technicians push plant operators to outsource maintenance, lifting service revenue at a 7.7% CAGR.

What regions offer the highest growth potential?

Asia Pacific leads with a 10% CAGR as China’s 14th Five-Year Plan and India’s National Clean Air Programme mandate thousands of new installations.

How are vendors differentiating in a moderately concentrated market?

Leaders integrate emissions data with process-control software, add AI-based predictive analytics, and offer subscription or “monitoring-as-a-service” models that lower capital barriers while locking in long-term revenue.

Emission Monitoring Systems Market Report Snapshots