Trusted data, simplified compliance

High-Precision Air Quality Monitoring for Construction, Healthcare & Industrial Sites

MCERTS-certified precision monitoring with real-time alerts and source identification. British-engineered hardware deployed across 500+ sites. Identify pollution causes, not just levels.

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EMSOL Praxis Monitors

EMSOL Praxis monitors 11 essential air quality parameters in real-time.

Particulate monitoring includes PM₁, PM₂.₅, and PM₁₀.

Gas monitoring covers Nitrogen Dioxide (NO₂), Nitric Oxide (NO), Ozone (O₃), Sulphur Dioxide (SO₂), and Carbon Monoxide (CO).

Environmental sensors track Temperature, Humidity, and Barometric Pressure.

All data streams integrate into a single platform for comprehensive air quality management.

Key Features

Certified Accuracy

MCERTS-certified Praxis system providing precise measurement. Factory calibrated against UK government reference stations before deployment.

Real-Time Data Collection

High-frequency sampling every 10 seconds with no ‘sleep mode’ gaps. Data streams continuously via 4G cellular or Ethernet. Export in CSV or JSON for analysis.

Environmental Resilience

Operating temperature range: -40°C to +40°C. Tested from construction sites in cities to mining operations in extreme climates. 2-hour battery backup for power interruptions. IP-rated enclosure for outdoor deployment.

Automated Compliance

One-click reports formatted exactly how local authorities require – daily, weekly, monthly. Automatic threshold monitoring against WHO guidelines, DEFRA limits, or your project-specific thresholds.

Flexible Integration

Easy integration with existing systems through standard APIs and multiple connectivity options including 4G/5G cellular and WiFi capability.

Smart Maintenance

Remote diagnostics and over-the-air firmware updates reduce site visits. Complete instrument history logged – every calibration, sensor change, and maintenance event tracked for regulatory compliance and warranty support.

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“EMSOL helps us understand local pollution levels, its sources and identifies targeted actions we can take to improve the situation”.

Tanja Dalle-Muenchmeyer, Trust Air Quality Manager, Guy’s and St Thomas’ Hospital

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“By having the EMSOL air and noise quality measuring equipment installed at site, it’s allowed us to focus on some operational improvements which minimises any impact our recycling operations has on the local environment.”

Chris Batterbee, Environmental Compliance Manager, Powerday

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“EMSOL helped us to target enforcement against non-compliant site vehicle activity and pollution.”

Linda Johnson, Pollution Team Manager, Croydon Council

Compliance & Certification

Meeting air quality regulations requires both accurate monitoring and proper certification. Our monitoring solutions are built to meet the highest industry standards.

Certifications

MCERTS (UK)
Made in Britain accredited

Compliance Standards

EA Technical Guidance
Clean Air Act requirements
WHO Air Quality Guidelines
DEFRA monitoring
Local authority standards

Scaling With You

Deploy one Praxis on a single site. When you need more – perimeter monitoring, multi-project coverage, city-wide networks – the platform automatically scales. No new systems to learn, no integration headaches.

Fleet-wide visibility allows you to see all locations on one dashboard
Comparative analytics to help spot the outlier site immediately
Pattern recognition to dentify pollution trends across your operation
Centralised control to manage hundreds of units as easily as one
Historical proof demonstrating compliance everywhere

Frequently Asked Questions

How does real-time monitoring differ from passive traditional monitoring?

Traditional monitoring tells you about air quality issues over days or weeks. They give an indicator of pollution – but not when or from what. Real-time monitoring captures second-by-second data, enabling immediate alerts, source identification, and intervention before issues escalate. For active site management rather than retrospective compliance reporting, real-time monitoring is essential.

What is MCERTS certification?

MCERTS is the UK Environment Agency’s Monitoring Certification Scheme. It validates that instruments meet specified performance standards for regulatory monitoring. MCERTS certification provides assurance that measurements are accurate and legally defensible. Praxis is MCERTS certified for PM₂.₅ and PM₁₀.

Can Praxis identify the source of pollution?

Yes. Unlike standard monitors that only record levels, Praxis integrates with the EMSOL Portal and smart cameras to link pollution spikes to visual evidence. When readings spike, you can see exactly what activity caused it – whether that’s a specific vehicle, construction activity, or neighbouring source. This visual causality is unique to EMSOL and transforms monitoring from passive recording to actionable intelligence.

What monitoring is required for construction sites?

Most UK construction projects require real-time dust monitoring to meet planning conditions and IAQM guidance. MCERTS certification is increasingly specified for PM₁₀ and PM₂.₅ measurement accuracy. Section 61 consent under the Control of Pollution Act often mandates continuous monitoring with documented evidence of compliance.

What data outputs does Praxis provide?

Praxis provides 15-minute, hourly, and daily averages through the cloud platform. Data exports in CSV or JSON format for analysis in Excel, R, Python, or environmental software. RESTful API available for integration with existing systems. Automated compliance reports formatted for local authority requirements.

Tried and Tested.

Proven in the Field

Our precision monitoring solutions are trusted by industry leaders across construction, healthcare, and local authorities. With deployments ranging from busy urban construction sites to sensitive healthcare environments, we’ve consistently demonstrated performance in the most demanding conditions.

Trusted by HS2, Morgan Sindall, Ricardo, NHS Trusts, Transport for London, United Nations Environment Programme
Networks deployed across Greater Manchester authorities for evidence-based decision making
Field-proven reliability from urban construction sites to extreme climate deployments

SPEAK WITH OUR TEAM

Monitoring Sorted

Speak with our specialists about your specific requirements. Our team has extensive experience deploying precision monitoring solutions across construction, healthcare, and industrial environments.

Speak to the team