GEOcityQUAL system
for Air quality Monitoring

GEONICA designs and integrates Stations and Complete Networks for smart cities (IoT Solutions) for measuring and monitoring in real time the polluting gases, the noise contamination, as well as the micro-particles present in urban environments.

Air Quality Monitoring

For the measurement of polluting gases, ambient noise and micro-particles.

GEONICA designs and integrates Complete Air Quality Monitoring Stations and Networks to measure inorganic gases and Volatile Organic Compounds where detection is required in parts per billion (ppb), also including optical monitors for measuring the aerosols / particles of the type PM1, PM2.5 and PM10.


Our current technologies include Electrochemical, Catalytic, Optical and Non-Dispersive Infrared (NDIR) Sensors and Semiconductor / Metal Oxide Photoionization Detectors (PID) and Spectroscopy. In any case, we continue to explore the integration of new types of measurement sensors to contribute to technological development.

The air quality monitoring station of our AQMS (Air Quality Monitoring System) is a robust unit for continuous measurement in remote locations outdoors. The AQMS station is used to determine compliance with clean air standards and assess the nature of pollution in urban centers, that is, to measure human exposure to pollutants and particles present in the air such as:

  • Carbon monoxide (CO)
  • Nitrogen dioxide (NO2)
  • Nitric oxide (NO)
  • Sulfur dioxide (SO2)
  • Ozone (O3)
  • Hydrogen sulfide (H2S)
  • Volatile Organic Compounds (VOC)
  • Particles (PM1, PM2.5 and PM10)

Some of the advantages of our Air Quality Monitoring Stations compared to complex gas analyzers are summarized below:

  • Much lower cost and minimal maintenance needs, which is why it is possible to install more dense complementary or supplementary networks with a much higher number of measurement points.
  • Possibility of installation anywhere in the city, such as on a streetlight or traffic light post, on a bus stop canopy, on the facade of a building, etc., always, as It should be, in locations close to the areas through which pedestrians move, without the need to build expensive protective cabinets where to locate the delicate gas analyzers, which, moreover, are normally located in areas that are not fully representative.
  • Much less energy consumed, operating by means of an internal battery and a solar panel, with the possibility of mains power.
  • Reduced size and weight.
  • Better temporal response of the measurements in front of the analyzers since they normally need to complete hourly mean values.
  • Possibility of incorporating meteorological sensors and outdoor microphones to measure ambient noise.
  • Transmission of data in real time via GPRS / 3G / 4G network or Radio to a Data Reception Center.
  • Publication on the web through our advanced WEBTRANS Ubiquitas Internet platform.

Air Quality Monitoring
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