What is MIMAQ
• Real time air quality monitoring
• Mobile sensors
• Carried by volunteering participants
• Visualization on maps and mobile Augmented Reality
• Dec. 2009: proof of concept during Copenhagen
• Mar-Oct 2010: pilot in Leiden, The Netherlands
• Supported by Digitale Pioniers, ministry OCW
• Create a real time air quality monitoring network.
• Make the invisible environment visible.
• Find out how hyper-local, personal measurements are
perceived by the audience (volunteers).
• Evaluation currently in progress.
• Increase involvement of civillians in this expert area.
How does it work
• The City Senspod device measures gas levels.
• Data samples are transferred via Bluetooth.
• Results are displayed...
• on Google Maps
• on mobile devices (Augmented Reality view)
• Every second a sample is taken, including:
• GPS location
• Levels of NOx and CO
• Temperature, Relative humidity
• Noise level in dBA
• We chose NOx as indicator for air quality, also for its
correlation with PM10 and PM2.5 levels*
* Source: ECN Petten
• Example plot
• NOx levels
(red = high)
• Red track
Augmented Reality view
• Layar Augmented Reality browser (iPhone, Android).
• NOx levels are rendered as “clouds” in the air.
• About a month worth of raw data, collected by ﬁve
• Implemented map view and AR view.
• Approx. 25 volunteers
• Preliminary calibration
and interpretation, work
• Sensor calibration!
• Inﬂuence of temperature,
humidity and O3
• GPS accuracy
(no valid data acquisition
without GPS ﬁx)
• Feedback from volunteers and test users
• Wow this is impressive “Is this for real?”
• Thought provoking.
• Positive action, creates awareness of own behavior.
• Excellent case for education.
• Interest from public services (e.g. ﬁre brigade) and
health care sector.
• The MIMAQ pilot shows that pollution measurement
can be done on a qualitative level with simple, low-
• With improved calibration and interpretation of
results a complimentary measurement grid provides
real-time and early-warning information.
• MIMAQ can also play a role in popularization and
democratization of environmental quality monitoring.
• Johannes la Poutré
• Email: firstname.lastname@example.org
• Web: http://mimaq.org
• Twitter: @mimaq
MIMAQ is supported by Kennisland, Digitale Pioniers