Urban Air Quality Monitoring

To measure air quality in the ambient air is a challenge. The monitoring site needs to be representative and not dependant on changes in local traffic. A large number of gaseous components need to be measured with high accuracy and high availability.

The OPSIS DOAS system is different and provides a fast monitoring system that gives high data availability at low cost.

The OPSIS system is based on a non-contact DOAS method, using an optical path. The optical light is transferred in an optical fibre to the analyser and one analyser can operate several paths.

A single OPSIS system will measure all relevant gaseous components, such as NO, NO2, SO2, O3, BTX, HNO2, NO3, formaldehyde, and NH3.

Urban Air Quality Monitoring by OPSIS

  • High data availability
  • Cost-effective, open-path technology
  • Representative path-integrated data
  • Direct monitoring of NO2
  • Gas calibration only once per year
  • Low energy consumption
  • Operates with a minimum of maintenance
  • Approved by MCERTS, TÜV, U.S. EPA, Chinese EPA, and others

    System Overview

    UV DOAS system for urban air quality monitoring

Do you want to know more about urban quality monitoring? Contact Henrik.

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