GLOBAL EXPERTISE IN AIR QUALITY MONITORING Overview of ENVEA solutions and worldwide references

3. Air quality monitoring principles 06 4. Ambient air monitoring products review 10 4.2 Particulate matter analyzers 11 4.4 Ultra-fine particulate analyzers 13 4.7 Data management solutions 18

envea 5. Use case application review 20 5.1 Standard AQMS shelter 20 5.2 Roadside compact stations 22 5.3 Solar powered AQMS station 24 5.5 AQMS mobile laboratory 28 5.7 AQMS hybrid network 32

As cities continue to grow, air pollution remains a pressing public health and environmental concern. Vehicle emissions, industrial activities, and urban heating contribute to elevated levels of particulate matter (PM2.5), nitrogen dioxide (NO2), ozone (O3), and other harmful pollutants. Monitoring urban air quality is essential to protect citizens, guide policies, and promote sustainable development. ENVEA provides a comprehensive range of air quality monitoring solutions, from high-precision analyzers and compact sensors to advanced data acquisition systems. Our equipment measures key pollutants...

While air monitoring application seems to be a single use case, it can in fact cover several aspects, so each of the use case below illustrates different ways to integrate or use ENVEA analyzers and data management solutions, which can be combined. DEVICE DESCRIPTION TYPICAL PRODUCT(S) Standard AQMS shelter Range of AQMS analyzers integrated into AF22e, AC32e, CO12e, O342e, MP101, a shelter for regular air quality monitoring OPM250, eSAM, MGC101, ZAG710, VOC72e Roadside compact station Compact station installed near traffic AC32e or AS32M, CO12e, MP101 to monitor local conditions Solar-powered...

3. AIR QUALITY MONITORING PRINCIPLES These networks consist of fixed and mobile stations equipped with regulatory-grade analyzers (usually) and/or sometime compact sensors that measure key atmospheric pollutants, including: • Particulate Matter (PM10, PM2.5, ultrafine particles) • Volatile Organic Compounds (VOCs) These measurements are done usually continuously and in real time and for additional check or specific pollutants by manual or automated sampling with laboratory analysis. Stations may be located in urban centers, near traffic corridors, rural background areas, or industrial zones,...

3.2. From raw data to validated information Monitoring networks don’t just collect data – they also ensure its quality and reliability. The process involves several key steps: AUTOMATIC & MANUAL DATA VALIDATION DATA AGGREGATION & PROCESSING Real-time data is automatically screened for anomalies (such as sensor faults, calibration drift). Validated data is aggregated into hourly, daily, monthly, and annual averages. Protocols Quality assurance protocols ensure proper calibration, maintenance, and traceability of instruments. Processing Meteorological data (for example: temperature, humidity, wind...

3. AIR QUALITY MONITORING PRINCIPLES 3.3. Communication, forecasting & scientific insight A well-managed monitoring network doesn’t stop at data validation – it transforms data into meaningful insight and public service. PUBLIC INFORMATION AND ALERTS SCIENTIFIC RESEARCH AND POLICY SUPPORT Air quality indices (AQIs) are calculated and shared with the public in real time via websites, apps, and displays. Alerts are triggered when pollutant levels exceed health thresholds, allowing vulnerable populations (children, elderly, people with respiratory conditions) to take precautions. Public engagement...

3.4. Conclusion: A strategic tool for environment and health Air quality monitoring networks serve far beyond their technical function – they are essential tools for protecting public health, guiding environmental policy, and ensuring accountability. From local traffic management to national emission control programs and global climate strategies, reliable air quality data underpins every step. Whether operated by government agencies, cities, research institutions, or private operators, these networks must be robust, standardized, and continuously improved to meet evolving environmental challenges....

4. ENVEA AMBIENT AIR MONITORING PRODUCTS REVIEW 4.1. Standard gas analyzers ENVEA’s e-Series gas analyzers are designed for continuous ambient air quality monitoring of SO2, NOx, CO and O3. It offers precise, real-time data with a strong focus on sustainability, low maintenance, and user-friendliness. The instruments comply with international standards (EN, US-EPA, etc.) and are widely used in regulatory networks and industrial applications. KEY FEATURES & ADVANTAGES: • Eco-designed: Low power consumption, reduced carbon footprint, and recyclable materials. Touchscreen interface: Intuitive and...

envea 4.2. Particulate matter analyzers ENVEA offers advanced instruments for continuous monitoring of particulate matter (PM) in ambient air. These systems are designed to meet regulatory standards and deliver reliable, real-time data for various PM fractions (mainly TSP, PM10, PM2.5, PM1). The instruments are suitable for urban air monitoring stations, industrial or traffic perimeters, and research applications. • Real-time measurements: Continuous, automatic monitoring of PM concentrations. • Regulatory compliance: Meets standards such as EN 12341 for PM10 and PM2.5. • Rugged & field-proven:...

4. ENVEA AMBIENT AIR MONITORING PRODUCTS REVIEW 4.3. Other gas analyzers In addition to its core e-series analyzers, ENVEA offers a range of instruments for non-criteria and specialized gases, including total hydrocarbons (THC), volatile organic compounds (VOC), reduced sulfur compounds (TRS, H2S), and ammonia (NH3). These analyzers are widely used in industrial hygiene, regulatory monitoring, odor control, and process optimization. KEY FEATURES & ADVANTAGES: • High sensitivity: Suitable for trace-level monitoring. Continuous operation: Real-time measurements with fast response. Targeted configurations:...