Build your own sensor: hackAIR in action

While it is possible to contribute to a better air quality map on your own, it’s a lot more fun to do so in a community of people. That’s why we’re travelling across Europe to participate in and organise workshops and activities on air quality and citizen sensing: Have a look at some recent events in Germany, Belgium and Norway!

Linking up at Open Data Day

Open Data Day is an annual celebration of open data all over the world: 406 events took place on March 3, 2018! It is an opportunity to show the benefits of open data and encourage the adoption of open data policies in government, business and civil society.

hackAIR was partner of the Frankfurt Hackathon, and hackAIR team members Arne Fellermann (BUND) and Carina Veeckman (VUB) also contributed to Open Data Day events in Stuttgart and Brussels.

Arne travelled across Germany on March 3 (Berlin to Frankfurt to Stuttgart and back) and participated in two Open Data Day events: at OK Lab Frankfurt and at OK Lab Stuttgart. He concludes:

 

“Great communities of OK Labs, inspiring talks and input. Great to discuss the activities of luftdaten.info. We also received valuable and constructive feedback on hackAIR.”

 

 

The Open Data Day event in Brussels (“Towards clean air with open data”) was organised by Open Knowledge Belgium and Civic labs. All resources are available and open for everyone to use: presentations, videos and pictures. Carina Veeckman (VUB) spoke about: “Participatory processes for air quality measurements through hackAIR”. Carina’s presentation slides and the video of her talk give a good overview of the work of hackAIR in the field of air quality measurement and citizen science. She says:

 

Open Data Day was celebrated in Brussels with an event fully dedicated to open air quality.

The event was a great networking opportunity for hackAIR to strengthen collaborations, and make new contacts.”

 

Build your own sensor: workshop by NILU

 On March 1, hackAIR partner NILU organised a sensor-building workshop in Oslo. 16 people showed up, from high school students, civil servants of the municipality of Oslo, students of meteorology and environmental activists. After building the hackAIR home sensor, they set them up in simple cases (thanks to luftdaten.info for providing fantastic ideas), with the following adaptations:

  • conductive silicone tube (10 cm) to avoid particles to be attached/accumulated inside the tube
  • sensor mounted on the vertical part of the PVC pipe to facilitate the air flow
  • extra part to the PVC pipe added to avoid sensor falling down

 

The sensors will now be set up across Oslo and operate until June to increase our collective understanding of air quality patterns in the Norwegian capital.

Want to organize your own hackAIR workshop? We’ve got a full workshop toolkit with all instructions for you – or give us a shout, and we might even come by!

Organise your own hackAIR workshop with the hackAIR workshop toolkit

Are you interested in organising a workshop on air pollution and grassroots air quality monitoring –  for your neighbourhood, school, organisation, city council?

Check out the hackAIR workshop toolkit: it is easy to use! And, of course, you can tailor the content to your needs.

In this toolkit, the hackAIR team walks you through the whole process of planning and organising your own hackAIR workshops. All resources are compiled for you – ready to go.

Four modules are available:

 

The toolkit supports you before, during and after a hackAIR workshop.

Before:

During (for each of the four modules):

  • Facilitation guide
  • Presentation slides 
  • Handouts

After:

The workshop modules can be used separately. They can also build on each other, depending on purpose and context. Several teachers have already told us that they are thrilled to bring hackAIR workshops to their classrooms!

Let’s talk. We’d love to hear from you how you are using the hackAIR workshop toolkit!

For support with workshop facilitation or if you would like to invite hackAIR to present at your event: please get in touch with us. We’ll explore together what is possible.

For Norway-based blog readers: you are invited to participate in a workshop organised by hackAIR partner NILU in Oslo on Thursday, March 1. Information about this event is here.

And of course: please send us information about your upcoming events. We will spread the word through our communication channels!

Local air quality campaigns: Learning from UrbanAirQ

Air pollution is most importantly a local issue. Have you been wondering how to engage your neighbours, how to collect data together and to make sense of the results? UrbanAirQ is an inspiring example for a citizen-driven local air quality campaign.

 One of the Dutch pilots of the Making Sense project  – UrbanAirQ – involved the local community of the two most polluted streets in Amsterdam. Through online and offline recruiting, a group of 25 local residents and a number of experts participated in the case study.  

 

The main questions at the start were: How can we bring together engaged citizens and experts to explore the opportunities of participatory air quality monitoring? Can this collaboration identify challenges and issues to be tackled? Will this project improve the quality of life of these local residents?

The local residents were in charge: they decided what they wanted to measure and why. Their questions varied: some wanted to know more about differences from street to street and from door-to-door; others were interested in the  different levels of air pollution between the ground floor and the sixth floor of the same building.

 

Participants received an air quality sensor that could generate data to answer these questions and placed them in the best locations to address their questions.

The sensors were calibrated with the help of technical experts, using the official measuring stations. Data generated during the three-months-pilot were analysed with the support of experts from the Dutch national weather service (KNMI).

 

One participant placed two sensors: one on the front side of her house, one in the backyard. She was very interested to learn more about the level of air pollution in these two locations because she wanted to choose where she would spend her free time outside. With the data and new information from the experiment, she was able to make an informed choice about where to go. With the data from the sensors, citizens could find the information they were interested in and change their behaviour to take better care of their health and well-being.

The project inspired a start-up, called Treewifi. Air quality sensors are placed into birdhouses and hung into trees in cities. If the air is clean, free WiFi is offered to passers-by. Data is hyper-local, high-quality and real-time.

Expect to be surprised by what a community-led citizen science project can bring as short and long-term outcomes!

 

Partners in this project were the Dutch national weather service (KNMI), University of Wageningen, Public Health Service of Amsterdam (GGD Amsterdam), Dutch Energy Research Center (ECN), LongFonds, Waag Society and Amsterdam Institute for Advanced Metropolitan Studies (AMS).

If you want to set up a local air quality campaign, you can find instructions to build your own hackAIR sensors at our tutorial page – and check out the Making Sense toolkit for lots of methods, tools and practices. Very inspiring resources for hackAIR users who want to design and implement air quality measurement campaigns in their local communities!

Build your own sensor case

After you’ve build your hackAIR sensor, you’ll need a case to protect it from the elements. You can use one of the options below, or come up with your own design. The sky is the limit!

When you pick a case, pay attention to the guidelines below to ensure proper functioning of the sensor.

Material

  • Weatherproof & water resistant
  • Check out sustainable and recyclable options
  • No metal (could disturb WiFi or Bluetooth connectivity)

Size

  • Electronic parts: length 10 cm, height 6 cm, width 5.5 cm
  • All pieces need to fit inside the case
  • The sensor should be placed a few centimeters below the electronic parts

Colour

  • Should not get warm / overheated when exposed to sun
  • Light colours (white, transparent) preferred

Ventilation

  • Make sure that warmth is not trapped inside the case: ventilation is crucial
  • Inlet and outlet need to have free air flow

Position

  • Outside use only, ideally shaded
  • Not directly next to sources that produce / disseminate particulate matter (such as chimneys)
  • Height: best between 1.5 m and 4 m (same as official sensors)

Options for cases

  • Plumbing pipe
  • PET bottle
  • Yoghurt bucket
  • 3D printed case

Plumbing pipe

These are the pipes that the German air quality network luftdaten.info uses for their sensors

 

See how it works: in this video tutorial.

 

 

PET bottle

This is an easy, quick and sustainable way to build your sensor case – upcycling a PET bottle!

Hester Volten, scientist air quality at the National Institute of Public Health and the Environment (RIVM) in the Netherlands and member of hackAIR advisory board, shows in this video how a PET bottle can be used as sensor case. 

hackAIR consortium partner BUND created a tutorial for building your own sensor case from a PET bottle.

Yoghurt bucket 

hackAIR team member Wiebke Herding (ON:SUBJECT) shows her current sensor setup (using three sensors: hackAIR home v2, luftdaten and RIVM). She writes:

 “The RIVM sensor and the luftdaten sensor use the same casing: a yoghurt container (1000 g, available in supermarkets). I simply cut a large hole into the bottom (see inset). The lid makes it easy to insert the electronics. The bucket strap is perfect for hanging!

It’s waterproof with plenty of ventilation, mostly white and allows the sensor to be parallel to the ground (the intake slot is not supposed to face downwards).”

 

This video tutorial shows you how to build your sensor case from a yoghurt bucket (as shown on the right).

Let us know whether you can find these buckets in your country! We know they are available in Germany, the Netherlands, Belgium, Austria, Switzerland. Where else?

 

3D print

 

The Norwegian hackAIR consortium partner NILU (Norwegian Institute for Air Research) printed a 3D case for the sensor.

In the Maker Community, you will find many ideas and suggestions for 3D printing for cases and mounts. Have a look at Thingiverse!

 

 

Send us pictures of  YOUR sensor cases

We are very curious to see your creative ideas for sensor cases.

Here are resources for inspiration.

We will share your pictures with the hackAIR community!

Press release – Open platform hackAIR maps current air quality in Europe’s cities

Open platform hackAIR maps current air quality in Europe’s cities – powered by citizens and smart technology

Citizens can use the app and low-cost sensors to generate their own measurements of air quality to enrich official data, and find out how to avoid and reduce particulate matter pollution

Press release – 8 February 2018

Today, hackAIR launches its apps for iOS and Android, connected to an online platform at www.hackair.eu, where citizens in Europe can check the air quality in their neighbourhood. In turn, everyone can improve the data from official sources with their own measurements, for instance by simply uploading a photo of the sky with their smartphone.

With air pollution being the number one environmental concern of European citizens and the number one environmental cause of illness and death in urban centres, hackAIR provides actionable information on the most important type of air pollution: particulate matter pollution. Particulate matter pollution is a complex mixture of extremely small particles in the air, which are easily inhaled.

Around 90% of Europeans living in cities are exposed to levels of air pollution deemed damaging to human health. Whilst the damaging impacts of particulate matter pollution are widely recognised, official air quality data show significant gaps and are often difficult to access.

The hackAIR platform aims to make that data readily available and improve the official datasets by combining them with measurements from users. They can take photos of the sky, use a piece of cardboard with petroleum jelly, or build their own microcomputer sensor in an afternoon.

Many Europeans rightly worry about air quality: how clean is the air I breathe, when I live near a major road, airport or industrial zone? The hackAIR platform gives them the answer, and helps them to contribute their own measurements to make that answer better, more relevant and actionable,” says Evangelos Kosmidis, Physicist and Founder of DRAXIS.

The hackAIR service is location-based and real-time, offering users a map-based interface to the data available on the air quality in their neighbourhood. With that information, they can find areas with clean air for relaxation and sports, and which areas to avoid because of high pollution levels. Citizens with concerns over air pollution can also use the platform to get better informed and involved in the discourse to improve air quality, locally and on a larger scale.

hackAIR offers four ways for users to contribute their own air quality data:

  1. They can submit photos of the sky using the hackAIR app. An algorithm gives a rough estimate of air pollution levels.
  2. They can build a simple cardboard sensor that uses the discoloration of petroleum jelly to get an estimate of the amount of particulate matter pollution.
  3. hackAIR provides manuals and workshops to build stationary and portable microcomputer air quality sensors. These sensors are cheap, easy-to-build and provide high-quality data.
  4. Experienced users can submit and access data using an online application programme interface (API).

In the coming year, hackAIR is organising a series of workshops in the pilot countries Germany, Norway, Greece and Belgium to raise awareness and train people on air quality, how to build sensors, and how to use the resulting information.

Air pollution is the environmental issue that Europeans worry about the most. But they do not feel sufficiently informed about the issues, and its impact on their health in their country. With the app, the workshops and the sensors, hackAIR aims to empower them to make better decisions based on better information,” says Arne Fellermann, BUND/Friends of the Earth Germany.

The app and platform

The app can be downloaded for iOs and Android from www.hackair.eu.

The platform is accessible at platform.hackair.eu.

About hackAIR

hackAIR is a collaboration of six European organisations working on air pollution,  environment, technology, citizen science and research.

The partners are DRAXIS (Greece), NILU (Norway), CERTH (Greece), BUND (Germany), Vrije Universiteit Brussel (Belgium) and ON:SUBJECT (the Netherlands). The Democritus University of Thrace, the Technological Educational Institute of Athens and CREVIS contribute as third parties affiliated to DRAXIS Environmental S.A.

hackAIR is supported by the Horizon 2020 programme on ‘Collective Awareness Platforms for Sustainability and Social Innovation’ of the European Union under grant agreement number 688363.

More information

Panagiota Syropoulou, project leader: syropoulou.p@draxis.gr, +30 697 900 35 12
In Germany: Arne Fellermann – Bund für Umwelt und Naturschutz Deutschland: Arne.Fellermann@bund.net, +49 176 810 366 72
In Norway: Hai-Yung Liu – Norwegian Institute for Air Research: hyl@nilu.no, +47 638 980 48; Sonja Grossberndt – Norwegian Institute for Air Research: sg@nilu.no, +47 63898245
In Belgium: Carina Veeckman – Vrije Universiteit Brussel: carina.veeckman@imec.be, +32 2 629 16 65
In the Netherlands: Wiebke Herding – ON:SUBJECT: wiebke@onsubject.eu, +31 61 55 073 66
In Greece: Panagiota Syropoulou –  DRAXIS Environmental S.A.: syropoulou.p@draxis.gr, +30 697 900 35 12

Build your own hackair air quality sensor

 

hackAIR partner BUND hosted a workshop in Germany with students and PhD candidates from Foundation of German Business (Stiftung der Deutschen Wirtschaft). Arne Fellermann from BUND writes: 

 

“The students happily participated in our first hackAIR sensor test. After a general discussion on air quality, we explained how hackAIR works. In only 20 minutes the students assembled the hackAIR home sensor kit in small groups and connected it to a hotspot. Great fun – exploring and doing together!

This workshop has also provided many insights for us as pilot partner – we’re looking forward to building more sensors in the future!”

 

You can build a hackAIR sensor at home – check out our tutorials at hackair.eu/tutorials

And once you’ve tried: Send us your stories, questions and suggestions – we are excited to hear from you! 

 

 

Update from the hackAIR team (October 2017)

From ordering material, debugging mobile apps and writing tutorials: we’re getting ready for the launch of the hackAIR platform. What is happening right now in Thessaloniki, Oslo, Amsterdam, Berlin, Athens and Brussels?

Eleftherios Spyromitros-Xioufis (CERTH)

“CERTH is currently working on ways to increase the amount of data that enters the platform. In addition to collecting geotagged sky-depicting images from Flickr, we now also collect non-geotagged images and try to infer their locations based on the image metadata. Our evaluations suggest that the approach works surprisingly well, being able to accurately estimate the geolocation of a significant percentage of non-geotagged images. We also have added more data sources: In addition to the PM measurements from governmental sources, we have recently started to collect measurements from luftdaten.info sensors.”

Gavin McCrory (VUB)

“The last 6 months have been a busy period for us at VUB! We’ve been bringing the ambitions of both pilots in Norway and Germany together with engagement lessons learned from air pollution projects, domain experts and over 400 citizens. In September, we developed our engagement strategy for hackAIR, which will guide and support pilots over the next year and a bit. Alongside this, we also developed the evaluation framework and behaviour change strategy for the hackAIR project. We’ll be presenting some of our lessons learned at the Internet Science conference (in Thessaloniki, Greece) next month. We’ll continue to explore channels to illustrate the results of our research, both online or in person; if you have any suggestions or ideas for how we could do this, please let us know!”

Hai-Ying Liu (NILU)

“At NILU we are doing lots of testing! Building up and testing the hackAIR sensors in the lab, testing the first version of the hackAIR web, the mobile app, and the hackAIR platform. The testing results will shared with hackAIR developers for update. In addition, we are preparing information and dissemination materials in Norwegian to contact potential participants. We are also preparing materials for the pilot training and testing for the upcoming case study in Norway, Germany, Athens and Brussels.”

Panagiota Syropoulou (DRAXIS)

“At DRAXIS we are coordinating the work of all partners so that we are ready to ignite the pilot activities within the following months. We are in regular contact with external experts in the fields of air quality, citizen science, gamification and user experience to ensure that citizens will enjoy the hackAIR experience and that our pilots will be successful. The development team is currently fine-tuning and testing the platform so that we will be ready to go public.”

Wiebke Herding (ON:SUBJECT)

“The ON:SUBJECT team is working behind the scenes to prepare for the launch of the hackAIR platform. In the past months, we’ve built a completely new website for the project, drafted tutorials, shot videos and reworked hackAIR’s visual identity. We’re also working on a set of workshop materials that you can use to learn about hackAIR and build your own air quality sensors. We’re not quite ready to show you any of this, but we can’t wait!”

What we know about air quality

Between May and July 2017, the VUB research group SMIT conducted a multi-language survey to explore the awareness and behaviour of citizens in the context of air pollution, as well as the interest to measure it. After the first data collection, close to 400 people from Norway, Germany and other countries gave their input, including 261 in German, 64 in English and 47 in Norwegian.

We found that levels of awareness about the causes of air pollution are high amongst our sample, who regard traffic, emissions from industry and burning from household activities as the three main sources of particulate matter pollution. Awareness levels about the associated impacts of air pollution were similarly high – the main adverse effects identified include threats to health, effects on nature and lower quality of life. However, citizens indicated that they are less informed about which individual steps they can take to reduce air pollution.

Our results pinpoint that people are generally curious about air pollution, and have an interest given their proximity to urban areas. This is also in line with the finding that people also regard pollution at the city level as a more clear and present problem than nationwide or neighbourhood specific pollution. We learned that traditional media channels such as newspaper, radio and television remain central sources of information about air quality. The value of digital channels also emerged, however, with one in four people benefiting from social media, websites and online platforms.

Importantly, our results show that citizens want to be engaged in policy dialogues and workshops around the topic of air pollution, and are interested in viewing and measuring data in real-time. They see value in connecting to related projects around air pollution, but also show that there are several challenges around the technical skills involved to build, measure or understand the data generated by low-cost sensors and our mobile application. For the next year, these points will underpin our approach to community-based engagement, focusing on real-time air pollution, support and training, and learning by doing in workshops.

If you would like to find out more about the hackAIR survey, feel free to contact Carina Veeckman from VUB-SMIT on carina.veeckman@imec.be.

Wearable air quality sensors

Kick-off meeting for the VERTIGO artistic residency on the 17th of October 2017 at DRAXIS premises in Thessaloniki. Guests: Emily Groves, representative of the VERTIGO project, Ling Tan, artist from Umbrellium, and Sarah Unwin, from FutureEverything that will co-finance the artistic work.

hackAIR was selected by VERTIGO as one of the research projects that will welcome an artist to work with them. The VERTIGO STARTS Artistic Residencies Program organises collaborations between artists and research and development projects in the field of Information and Communication Technologies (ICT).

The project that the artist will work on is called “Pollution Explorers”. It is a participatory project consisting of a set of wearable tools co-created with the hackAIR community, using the hackAIR platform to help citizens making sense of the complex issues around air pollution. It combines wearable technology, IoT, citizen participation and crowdsourcing and is intended to help investigate personal responsibility in air quality issues among citizens. With these technologies the artist will try to explore ways to measure people’s subjective perception on air quality and compare it with actual measurements of air pollutants.

The project will run from November 2017 until December 2018 and it will engage 2 groups of participants to co-create the wearables and monitor the local air quality. The scope of the project is to identify the correlation between citizens’ perception on local air quality and real air quality levels. From this residency, hackAIR will achieve greater visibility and engagement of citizens.

 

Air Sensing Roundtable: Initiatives for air quality and participatory sensing

The main challenges for air quality & participatory sensing include reliability of data, good communication with public authorities and strong community relations. These were the hot topics discussed by participants of the Air Sensing Roundtable webinar on 26 September.

With this webinar, hackAIR provided a platform for participatory sensing initiatives to discuss their approaches, experiences and challenges. What can we learn from each other? How can we join forces to increase citizen participation in air quality sensing?

Three initiatives shared their actions and learnings:

  • CAPTOR | collective awareness platform for tropospheric ozone pollution
  • Luftdaten.info | sensor toolkit to measure air quality with citizen science
  • hackAIR | open technology platform to access, collect and improve air quality information

In an in-depth discussion, participants active in the field talked about their main challenges and concerns. These include

  • Reliability, data validation and calibration;
  • Communication and relation with public authorities; and
  • Community relations.

Ideas for collaboration were pitched, links to related initiatives were shared and the path for further streams of dialogue for 2017 and 2018 was cleared. hackAIR will use this input to strengthen its launch in January 2018.

Are you a professional working on and interested in air quality and participatory sensing? Join our email list for the Air Sensing Network for more exchange and mutual learning.

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