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World first city-wide IoT air quality system

Helsinki Air Quality Test Bed

World’s first comprehensive city-wide air quality system was built to Helsinki Region in Finland. It supplements the current measurement stations. The more comprehensive data can be used to further develop air quality improving measures. The data will be open and available to everyone and can be used to inform the citizens on about local air quality and its development.

The amount of measurement points almost tripled in the Helsinki region as a new supplementary air quality network of Vaisala and Pegasor sensors was installed. The new system will enable agile and economical way to gather new information about the air quality of the Finnish capital city region.

The air quality data and predictive model enable air quality improving measures. For example, the need to water or clean the streets to avoid harmful dust can be predicted better than before.

A new cooperation model of businesses and public bodies in the Helsinki Metropolitan Smart & Clean project creates the foundation to export the solutions developed in the region to cities, where air quality is a significant problem.

Helsinki Metropolitan Smart & Clean Foundation gathered all the partners together and has facilitated the birth of the project. The foundation has also organised workshops for service providers and other actors, who are interested to build new services and applications using open and more precise air quality data.

The Helsinki Air Quality Test Bed project receives funding from Helsinki-Uusimaa Regional Council’s AIKO funding instrument.


Project status

A new sensor network was built during 2017: now air quality is being measured in 27 measurement stations. During fall 2017  Smart & Clean foundation organized a set of stakeholder activities with Demos Helsinki and the core actors of the HAQT-project. Through these stakeholder activities the challenges and opportunities for new air quality related solutions and services were identified.

In February-March 2018 a couple of months-long Demola-process was started. In Demola four teams, comprising of students of different fields, are ideating and developing concrete solutions for the utilization of the more precise air-quality data in four different themes. The air quality data produced by the new sensor network will be available for anyone to use.

Project status



Better managed actions to reduce and mitigate impacts of air polution

Better quality of life

New solutions improve quality of life and every day living

Business potential

Several billion Euro international business potential

Why a ground-breaking project

The world’s first city-wide IoT air quality sensor network that functions as a test bed for new services


The Finnish Meteorological institute (coordinator), Helsinki University, The Helsinki Region Environmental Services Authority HSY, Pegasor, Vaisala and Helsinki-Uusimaa Regional Council. Many domestic and international actors are interested in HAQT-project.,