Citizens As Sensors: A Solution To Pollution?

January 16, 2017 1 comment

After the recent news from Friends of the Earth Scotland that there are now a total of 38 Pollution Zones in Scotland, up from 33 last year, we take a look at how geographic information, and particularly that created by citizens, is playing a role in our mission for breathe better air.

Scotland Air Pollution Zones 20

Scotland Air Pollution Zones 2016

Much of geography’s traditional role has been on air quality monitoring – enabling sensors with location information to help build up the map visualising the spatial variability of the usual pollutants: carbon monoxide, sulphur dioxide, nitrogen oxide and particulate matter (both PM25/PM10) – as well as air quality modelling – whereby we utilise various factors to forecast accurate(ish) predictions. is currently the go to place to see historic and current forecasts of air quality, with summaries provided from 95 monitoring sites across the country.  A quick explore through the maps will highlight that the distribution of these sensors is limited, in turn creating more coarse outputs.  The issue of forecasting air quality is based on both our ability to effectively monitor the air as well as understand the way in which air pollutants move within city spaces.  How we simulate the latter through computer models – or Computational Fluid Dynamics (CFD) – is a challenge currently being addressed at the Scottish Government-backed CivTech tech accelerator (perhaps another cause for more 3D geospatial data?)

Tech is seemingly everywhere these days and the Future / Smart Cities agenda is no different and with it, a new lease of life for Citizens as Sensors; empowering local residents with the tools to plug the gaps on data, particularly where environmental monitoring is concerned.  For Geographers in the room who’ve read Michael Goodchild know this as Volunteered Geographic Information, or VGI (an essential read all the same!).


mapping air quality as you travel

With citizen science however comes the age old argument over data quality and relying on ‘the crowd’.  Recent publications about citizen science from the Centre for Ecology & Hydrology and an EC Science for Environment Report highlight that fears over data quality can be mitigated by robust tools and can strengthen citizens’ data to inform policy and practice.

When it comes to creating a smarter community-led air quality sensing network, there’s no been any short supply recently…DISCLAIMER: what follows is a run down of some efforts but there’s no favouritism intended here!

One of the first kickstarter successes in this field was the Air Quality Egg, which enabled you to user connect an egg to your wifi (queue first ‘internet of things’ hint), collecting information on all the usual suspects using the fixed egg and sharing this ‘live’ to their platform.

Another fixed solution which has impressed has been UCL’s ExCiteS department spin-off NGO, Mapping For Change, and their Air Quality Monitoring Project.  Although seemingly exclusive to London and silent for a couple of years now, the project deployed fixed tubes around the city to provided hourly readings and uses a very nice map interface to help you explore these monitoring sites (NB: ExCiteS team, if you’re listening, we’d love to see that gorgeous custom Leaflet clustering method open sourced!).


show the world how clean the air is around you!

Since then the list of initiatives has grown rapidly, of course including wearable devices that hook into your phone as well as more and more internet-enabled devices.  Aircasting is a notable offering; allowing users to acquire a wearable air quality device that tracks, shares and even visualises the air around you.  Visual displays of air quality is a fantastic awarenesss raiser, and many illuminating vests have followed however where AirCasting stands out from the crowd is that it has open sourced much of it’s app, making it possible to create your own custom-designed sense Arduino device!


Freevolt: devices without batteries? yes please!

Another favourite is CleanSpace, which is a free app for users but requires you to purchase an air quality monitoring tag if you want to contribute.  The CleanSpace Tag is also a personal air pollution sensor but comes with some pretty high tech features, as it’s (supposedly the first device) powered by Freevolt, which uses wasted energy in wireless signals to power itself…undoubtedly something every smart watch owner wishes was true for their device.

Whilst the plethora of new apps to get citizens involved with monitoring our environment can be seen as further engaging the masses to think more about issues like air quality, there remains an argument that this diversity of offering can in fact dilute citizens’ contributions, particularly where apps and agencies continue to operate in silos and not as ‘one geography’.  With the rise of citizens’ digital presence (or digizens), perhaps now is the time to look at how we hone and align this vast knowledge and encouraging a new era of environmental action.

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Is 2017 The Year of 3D Geo?

January 4, 2017 1 comment

LiDAR scanning has captured the Forth Bridges in stunning 3D resolution and is being shared across educational bodies for use in interactive games, apps and virtual reality tours.


The work, reported by the BBC yesterday, is in partnership with the Centre for Digital Documentation and Visualisation is a partnership between The Glasgow School of Art and Historic Environment Scotland, known as the Scottish Ten Project, which aims “to create accurate 3D data to help with their conservation and management, their interpretation and virtual access.”

The initiative is providing these datasets to encourage more interest in STEM (science, technology, engineering and maths) careers amongst young Scots and heralds an exciting time for 3D geospatial technology.

With the arrival of next generation high resolution aerial imagery from satellites and drones, alongside the continued advances in open source tools such as CesiumJS, LASTools and Mapbox’s new 3D features… is 2017 shaping up to be the year in which 3D geospatial goes mainstream?

Categories: Picture of the day

Map Library – quite literally

October 5, 2016 Leave a comment
Categories: Uncategorized

An interesting and amusing world view…

September 5, 2016 Leave a comment

DEFRA releases 8000 datasets

June 29, 2016 Leave a comment

Earth Observation and Spatial Analysis

Yesterday, the Department for Environment, Food & Rural Affairs (DEFRA) reached their deadline for releasing data under their OpenDefra project, which has made freely available around 8000 datasets since the launch of the project in June 2015.

Further details from mapgubbins

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Categories: Uncategorized

EEO/AGIS Seminar: Curating Digital Geospatial Information

March 14, 2016 Leave a comment

eoo1516This week’s EEO-AGI(S) seminar will be given by Prof. James Frew, Associate Professor, University California, Santa Barbara (UCSB).

The seminar will take place THIS Friday 18th March at 4.30pm in the Old Library, Geography Building, Univ. of Edinburgh, Drummond Street, Edinburgh, EH8 9XP.

Also a reminder that following all EEO-AGI(S) Seminars are AGI Geo-Drinks for informal professional networking held from 5.45 in Teviot Library Bar, Bristo Sq, EH8 9AJ. All welcome – please do come along and meet colleagues and fellow AGI members.

See you all at 4.30.

Categories: AGI Scotland, Events

Booking Opens Tomorrow for Annual Event

February 3, 2016 Leave a comment

The first tickets for the AGI Scotland Annual Event will be available from tomorrow (Thursday 4 February) from the AGI Website.mainhall

Thanks to the support of our sponsors, this year we are able to offer the first 50 delegates an exceptional booking rate:

  • AGI Members: £20 + VAT
  • Non-Members (Public Sector): £40 + VAT
  • Non-Members: £60 + VAT

We have worked hard to be able to offer these rates and would encourage you to book early to take advantage of this.

Further ticket releases will be priced incrementally higher (similar to airlines) as we approach venue capacity and our costs increase. The availability of further tickets at any subsidised rate is enabled by the support of our sponsors.

This year’s event would not be possible without our fantastic event supporters:

Gold Sponsors:


Event Supporters:



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