Bridging Indoor and Outdoor Air Quality: Persium’s Unified Monitoring Network in Greece

Bridging Indoor and Outdoor Air Quality: Persium’s Unified Monitoring Network in Greece


Air pollution does not stop at the building entrance.


Outdoor emissions move through streets, façades, and ventilation systems, shaping the air quality people experience indoors. Yet most monitoring systems still treat indoor and outdoor environments separately.


In Greece, Persium deployed a unified environmental monitoring network designed to close that gap.



Air pollution does not stop at the building entrance.


Outdoor emissions move through streets, façades, and ventilation systems, shaping the air quality people experience indoors. Yet most monitoring systems still treat indoor and outdoor environments separately.


In Greece, Persium deployed a unified environmental monitoring network designed to close that gap.



Air pollution does not stop at the building entrance.


Outdoor emissions move through streets, façades, and ventilation systems, shaping the air quality people experience indoors. Yet most monitoring systems still treat indoor and outdoor environments separately.


In Greece, Persium deployed a unified environmental monitoring network designed to close that gap.


A Connected Approach to Environmental Intelligence


This project integrates both outdoor and indoor Persium Pods into one cohesive monitoring system, delivering continuous, real-time data across diverse urban settings.


Outdoors, the network measures:

  • PM1, PM2.5, PM10

  • NO₂, O₃, CO, SO₂

  • Noise

  • Temperature, humidity, pressure

  • Wet Bulb Globe Temperature (WBGT)

Indoors, the system monitors:

  • PM1, PM2.5, PM10

  • VOCs

  • CO₂

  • Noise

  • Temperature, humidity, and pressure

By connecting these datasets, stakeholders gain visibility into how outdoor pollution interacts with internal environments, not as isolated metrics, but as part of a continuous exposure pathway.



This project integrates both outdoor and indoor Persium Pods into one cohesive monitoring system, delivering continuous, real-time data across diverse urban settings.


Outdoors, the network measures:

  • PM1, PM2.5, PM10

  • NO₂, O₃, CO, SO₂

  • Noise

  • Temperature, humidity, pressure

  • Wet Bulb Globe Temperature (WBGT)

Indoors, the system monitors:

  • PM1, PM2.5, PM10

  • VOCs

  • CO₂

  • Noise

  • Temperature, humidity, and pressure

By connecting these datasets, stakeholders gain visibility into how outdoor pollution interacts with internal environments, not as isolated metrics, but as part of a continuous exposure pathway.



This project integrates both outdoor and indoor Persium Pods into one cohesive monitoring system, delivering continuous, real-time data across diverse urban settings.


Outdoors, the network measures:

  • PM1, PM2.5, PM10

  • NO₂, O₃, CO, SO₂

  • Noise

  • Temperature, humidity, pressure

  • Wet Bulb Globe Temperature (WBGT)

Indoors, the system monitors:

  • PM1, PM2.5, PM10

  • VOCs

  • CO₂

  • Noise

  • Temperature, humidity, and pressure

By connecting these datasets, stakeholders gain visibility into how outdoor pollution interacts with internal environments, not as isolated metrics, but as part of a continuous exposure pathway.



Visualising the Invisible with MapView


All data streams into Persium MapView, a live digital platform providing geospatial visualisation of every deployed sensor.

Through MapView, users can:

  • View real-time pollutant graphs

  • Analyse trends and correlations

  • Configure alerts

  • Generate downloadable reports

  • Access data securely via API

Environmental conditions are no longer abstract. They are visible, measurable, and actionable.


The Bigger Picture


By connecting indoor and outdoor monitoring, the Greece deployment delivers a complete view of community exposure, enabling evidence-based public health protection, targeted mitigation strategies, transparent reporting, and smarter urban planning.


The broader lesson is clear: environmental intelligence must reflect how people actually experience air quality, across streets, buildings, and shared spaces.


When data is unified, cities gain the clarity needed to protect health and build more resilient environments.


Persium helps cities see what’s invisible, in real time.


Visualising the Invisible with MapView


All data streams into Persium MapView, a live digital platform providing geospatial visualisation of every deployed sensor.

Through MapView, users can:

  • View real-time pollutant graphs

  • Analyse trends and correlations

  • Configure alerts

  • Generate downloadable reports

  • Access data securely via API

Environmental conditions are no longer abstract. They are visible, measurable, and actionable.


The Bigger Picture


By connecting indoor and outdoor monitoring, the Greece deployment delivers a complete view of community exposure, enabling evidence-based public health protection, targeted mitigation strategies, transparent reporting, and smarter urban planning.


The broader lesson is clear: environmental intelligence must reflect how people actually experience air quality, across streets, buildings, and shared spaces.


When data is unified, cities gain the clarity needed to protect health and build more resilient environments.


Persium helps cities see what’s invisible, in real time.


Visualising the Invisible with MapView


All data streams into Persium MapView, a live digital platform providing geospatial visualisation of every deployed sensor.

Through MapView, users can:

  • View real-time pollutant graphs

  • Analyse trends and correlations

  • Configure alerts

  • Generate downloadable reports

  • Access data securely via API

Environmental conditions are no longer abstract. They are visible, measurable, and actionable.


The Bigger Picture


By connecting indoor and outdoor monitoring, the Greece deployment delivers a complete view of community exposure, enabling evidence-based public health protection, targeted mitigation strategies, transparent reporting, and smarter urban planning.


The broader lesson is clear: environmental intelligence must reflect how people actually experience air quality, across streets, buildings, and shared spaces.


When data is unified, cities gain the clarity needed to protect health and build more resilient environments.


Persium helps cities see what’s invisible, in real time.