Pro-Tec Geosystems Pte Ltd, in partnership with advanced monitoring technology providers, delivers a robust and intelligent Tunnel Air Quality Monitoring System designed to provide accurate real-time pollutant detection and automated ventilationmanagement.
Unlike open roads, tunnels restrict airflow and trap exhaust emissions from vehicles, particularly during peak traffic hours. Without proper monitoring, harmful gases and particulate matter can accumulate to dangerous levels, impacting:
Carbon monoxide is a primary pollutant in road tunnels due to vehicle exhaust emissions.
NO₂ gases are generated during high-temperature combustion inside vehicle engines. In tunnel environments, NO₂ can:
Continuous NO₂ monitoring helps maintain safe exposure levels and supports regulatory compliance.
Fine particles from diesel engines, brake wear, and tire friction accumulate in tunnels.
CO₂ levels increase with high traffic volume and inadequate ventilation. While not highly toxic at low concentrations, elevated CO₂ indicates poor airflow and ventilation inefficiency.
Monitoring CO₂ supports optimized ventilation performance and enhances overall tunnel air management.
In addition to gas detection, tunnel environments require visibility monitoring. High pollutant concentrations can reduce driver visibility, increasing accident risk.
This smart automation improves efficiency without compromising safety.
The tunnel air quality monitoring system includes:
Maintains safe air quality levels and visibility conditions within tunnels.
Protects maintenance and emergency personnel from harmful exposure.
Supports adherence to transportation and environmental safety standards.
Demand - controlled ventilation reduces electricity usage.
Accurate monitoring enables predictive maintenance and system optimization.
We provide intelligent, future-ready tunnel air quality monitoring system solutions that enhance safety, sustainability, and operational efficiency.
A Tunnel Air Quality Monitoring System continuously measures pollutants inside road, railway, and infrastructure tunnels using real-time sensors and cloud-based monitoring.
It helps protect drivers, workers, and maintenance teams by detecting harmful gases, poor ventilation, reduced visibility, and unsafe air conditions inside tunnels.
Common parameters include Carbon Monoxide (CO), Nitrogen Dioxide (NO₂), PM₂.₅, PM₁₀, Carbon Dioxide (CO₂), and visibility or opacity levels.
The system can connect with jet fans, ventilation fans, SCADA, or BMS platforms to activate ventilation when pollutant levels exceed preset limits.
It provides live data, alarm alerts, remote access, historical reports, improved tunnel safety, better ventilation control, and reduced energy consumption.