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Last week, the #CitiObs #Roadshow came to #Marseille for a full day dedicated to citizen science, air quality and, more broadly, the role citizens can play in observing and understanding their #environment.

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CitiObs @citiobs.eu · 15/09/2026

🌍 CitiObs research at #IAC2026! Dr. Jiayao Chen (NILU) presented research on using machine learning, satellite data and low-cost sensors for 1-km PM2.5 mapping across Europe. 📄 models.nilu.no/models/s-mesh/ Funded in part by CitySatAir and CitiObs.

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CitiObs @citiobs.eu · 14/09/2026

🌱 RE4GREEN offers a free 1.5-hour webinar on environmental justice, sustainability, inclusive citizen science and responsible research. 📅 28 Oct or 5 Nov | 13:00–14:30 CET A useful opportunity for the #CitiObs community and Fellow Cases. 👉 Register: docs.google.com/forms/d/e/1F...

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CitiObs @citiobs.eu · 10/09/2026

🤖CitiObs partners Dr. Joan Maso Pau and Stina Heikkilä joined the “Impact of AI on the Public Commons” panel at #DataForPolicy2026 in Barcelona. The discussion explored AI, open knowledge, data governance and the public good. 📘 Policy Brief 2: citiobs.eu/decision-mak...

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CitiObs @citiobs.eu · 07/09/2026

🌍 Today, on #CleanAirDay, our coordinator, Núria Castell , moderated a round table at the AIRLAB Microsensors Challenge Closing Event in Paris, exploring how microsensors, local data and citizen observations can support better air-quality knowledge and wider impact.

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CitiObs @citiobs.eu · 31/08/2026

In just over a month, CitiObs will be at #EURegionsWeek and our stand is built around one idea: come and try it yourself. 🗓️ 14 October 2026 (all day) | Square Brussels, Grand Hall 2 🔗 Our stand: eu-regions-week.europa.eu/programme/cu... 👉 Register: eu-regions-week.europa.eu/guide/how-re...

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CitiObs @citiobs.eu · 25/08/2026

#CitiObs is co-organising an open codesprint on 5–6 October 2026 in Barcelona, held alongside the OEMC Global #Workshop. The codesprint will bring together participants interested in citizen science, remote sensing and data spaces. Interested in joining? 👉 codesprints.grumets.cat/sprints/citi...

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CitiObs @citiobs.eu · 02/08/2026

Join CitiObs at #EURegionsWeek 2026! 📍 14 Oct | Square Brussels, Grand Hall 2 Discover our citizen observatories, hands-on tools and air quality solutions. Register: eu-regions-week.europa.eu/guide/how-re... #CitizenScience #HorizonEurope

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CitiObs @citiobs.eu · 16/07/2026

📍Two inspiring days at the #AfricaCleanAirForum2026! CitiObs Project Coordinator Nuria Castell hosted a session on Strengthening Citizen Science in Africa, highlighting the value of citizen engagement and low-cost air quality monitoring for better environmental data and decision-making.

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CitiObs @citiobs.eu · 13/07/2026

📍 #CitiObs is at the Clean Air Forum in Pretoria today! Our coordinator, Nuria Castell is sharing expertise on low-cost sensor management — calibration, data handling & open data to help close air quality data gaps in African cities. 🌍 #CleanAirForum #AirQuality #CitizenScience

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CitiObs @citiobs.eu · 07/07/2026

🌍 CitSci Africa #Conference, July 2nd: workshop on air quality monitoring, presenting the #CitiObs Knowledge Platform & Environmental Monitoring #Toolkit to participants across #Africa. Led by Nuria Castell (NILU), with an exercise on adapting the toolkit to African Citizen Observatories. 🌱

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CitiObs @citiobs.eu · 24/06/2026

Big news: 📡 WebSub Asynchronous Messaging Standard is now officially published and #CitiObs is proud to have contributed to making it a reality. So what does this actually mean? The CitiObs implementation is already live 👉 websub.citiobs.secd.eu Full standard 👉 docs.ogc.org/is/24-032r1/...

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CitiObs @citiobs.eu · 22/06/2026

📢 A powerful Citizen Science Dialogue on Air Quality and Health! As part of the CitiObs initiative, this dialogue brought together researchers, citizen scientists, and CitiObs Fellows to explore air quality and its direct impact on our well-being. 🎥 Link in the first comment 👇👇👇

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CitiObs @citiobs.eu · 15/06/2026

Some great resources from our friends at the ECS project: 🎙️ The ECS Podcast Hub is live! 👉 citizenscience.eu/ecsa/ecs-pod... 📅 Online event: "No project is an island: Bridges towards a joint legacy for the future of citizen science in Europe" (June 17th!) 👉 citizenscience.eu/ecs_project/...

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CitiObs @citiobs.eu · 26/05/2026

How can citizen-generated air quality data support better health outcomes? We hosted the first #CitiObs Citizen Science Dialogue — 50+ participants, big conversations on air, health & action. Key message: citizen science is not only about data. It's about trust, awareness & change. 👉citiobs.eu

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CitiObs @citiobs.eu · 26/05/2026

A few weeks since #EGU26 in Vienna and we're still energised! 🌍 Co-convening a session on climate-resilient cities reminded us how citizen-generated data bridges communities, researchers & policymakers. Exciting things ahead! 🌱 #CitiObs

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CitiObs @citiobs.eu · 13/05/2026

🌍 You're invited: Citizen Science Dialogue – Using Citizen-Generated Data on Air Quality for Better Health Outcomes 📅 26 May 2025 | 09:30–11:30 CEST | Online 👉 Register now: forms.cloud.microsoft/e/H8NYCEcdXg

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CitiObs @citiobs.eu · 30/04/2026

At the ACTRIS Science Conference 2026 (Oslo, 20–23 April), the CitiObs team contributed to discussions on air quality and atmospheric research. CitiObs contribution: integrating quality-controlled low-cost sensor data into machine learning for improved air quality mapping 👇 Check out the poster

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CitiObs @citiobs.eu · 20/04/2026

📢 Glad to have welcomed the CitiObs Fellows from around the world! 🌍 Citizen observatories from across 5 continents, all working towards more inclusive, data-driven, and community-led environmental action. 🎥 Watch the video via the link in the first comment 👇👇👇 🔗 Learn more: www.citiobs.eu

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CitiObs @citiobs.eu · 14/04/2026

#Air pollution can change dramatically from one street to the next but most monitoring systems can’t capture that level of detail. So how do we actually map what people are really breathing? Read the full blog to see how it works (below in the comments 👇👇👇)

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CitiObs @citiobs.eu · 02/04/2026

Citizen science in action 🌍 On March 10th in Cluj-Napoca, kids and teens explored how to build air quality sensors using Arduino 🤖 They learned that they can collect real data and help their community. Curiosity → action → impact 🌱 #CitizenScience #AirQuality #STEM #OpenData

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CitiObs @citiobs.eu · 31/03/2026

🌍 Inspiring days in #Oslo for the final #CitiObs Face-to-Face Plenary (24–26 March)! As we enter the last 9 months, we aligned on where we stand, what we aim to achieve, and how to get there. Back home energised and ready to maximise our efforts for a strong project closing 💪

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CitiObs @citiobs.eu · 17/03/2026

📢 This Thursday (March 19) at #RDA VP26 Nuria Castell will speak on: FAIRification of Citizen-Generated Data 🕗 8:00 CET How can we make citizen-generated data FAIR and better connect it to research? Learn more 👇 www.rd-alliance.org/plenaries/p26/ #CitizenScience #FAIRdata #OpenScience

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CitiObs @citiobs.eu · 16/03/2026

🌍 Have you explored the CitiObs Knowledge Platform yet? The platform brings together tools, methods and experiences supporting citizen science. 🔎 Explore resources and learn from real-world practice: 👇👇👇👇 citiobs.eu/citiobs-know... #CitizenScience #CitiObs

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CitiObs @citiobs.eu · 09/03/2026

56 initiatives from 20 countries across 5 continents applied to the #CitiObs Fellow Cases Open Call! 🌍 Today we’re welcoming the selected initiatives to the CitiObs onboarding #workshop. Stay tuned to discover the initiatives joining the network.

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CitiObs @citiobs.eu · 02/03/2026

Heading to #ECSA2026? #CitiObs will be there with 1 workshop + 2 panels on: 🔹 Trust & liability of citizen-generated data in crisis decisions 🔹 Data literacy & citizen observatories 🔹 AI validation of citizen science data 📍 3–6 March 2026 | University of Oulu More👇👇👇 www.ecsa2026.ngo/programme/

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CitiObs @citiobs.eu · 24/02/2026

The #CitiObs Decision Support System brings environmental data together into a single, simple, accessible platform, helping turn data into meaningful insights for communities, researchers, and decision-makers. Curious how it works and who can benefit? Read the full blog (link in first comment) 👇

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CitiObs @citiobs.eu · 10/02/2026

🌍 Calling citizen observatories worldwide! 🔔 CitiObs Fellow Applications are still open. Fellows gain access to tools, trainings, and a global peer-learning network of citizen science initiatives. 🗓️ Applications close February 15 👉 Apply here: citiobs.eu/demonstratio...

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CitiObs @citiobs.eu · 03/02/2026

📢 Smart Citizen Sensors! 🌱📡 This video presents the Smart Citizen sensors and their role in supporting low-cost, open-source environmental monitoring. 🎥 Watch the video via the link in the first comment 👇👇👇 🔗 Learn more: www.citiobs.eu

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CitiObs @citiobs.eu · 30/01/2026

🌍 Calling #citizen #observatories #worldwide! Fellows gain access to #tools, #trainings, and a global peer-learning #network of citizen science initiatives. 🗓️ Applications close February 15 👉 Apply here: citiobs.eu/demonstratio...

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CitiObs @citiobs.eu · 25/01/2026

🌍 🌍 Citizen Observatories play a global role in clean air & climate action. We shared our perspective with the Climate & Clean Air Coalition on why citizen science matters. 👇👇👇 www.ccacoalition.org/news/citizen...

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CitiObs @citiobs.eu · 14/01/2026

📢 Deadline extension! 🔔 CitiObs is pleased to announce that we are extending the application deadline for citizen observatories and citizen science initiatives to join us and enhance their impact! Now open through February 15th! 👉 Register/apply by 15 February 2026 here: lnkd.in/dj_tTDdp

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CitiObs @citiobs.eu · 30/12/2025

🎁 New Year opportunity for citizen #science initiatives (2026)! #CitiObs is recruiting 50 initiatives worldwide working on urban #environmental challenges (air quality, noise, urban heat). 👉 Register by 11 January 2026 here: lnkd.in/dj_tTDdp 📩 citiobsfellows@lists.nilu.no

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CitiObs @citiobs.eu · 23/12/2025

Happy Holidays from CitiObs 💫 ✨ We’re grateful to the citizen observatories, #community groups, researchers, and city partners collaborating to make #environmental action more inclusive and evidence-based. Wishing you a joyful season and a successful 2026.

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CitiObs @citiobs.eu · 23/12/2025

Are you a… 🔹 citizen observatory? 🔹 community group monitoring air/noise/heat/green space? 🔹 local initiative turning data into action? Then apply for CitiObs Fellows by 11 January 2026 👉 citiobs.eu/demonstratio... #CitizenScience #CommunityAction #CitiObs #FellowCases #CitizenObservatories

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CitiObs @citiobs.eu · 16/12/2025

📢 Welcoming Fellow Initiatives in 2026 🌍✨ For the first time, our call is open to environmental citizen observatories and citizen science initiatives worldwide 👉 Applications are open until 11 January 2026 Read the blog 👇👇👇 citiobs.eu/welcoming-fe... Apply here 📢 citiobs.eu/demonstratio...

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CitiObs @citiobs.eu · 11/12/2025

⚠️ Applications open for CitiObs Fellows! 🌱 Supporting community action & citizen science on urban environmental challenges. Apply by 11 Jan 2026 👉 citiobs.eu/demonstratio...

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CitiObs @citiobs.eu · 02/12/2025

💡 We’re proud that Nuria Castell (NILU) will contribute as part of the expert panel to the UNEA-7 Green Room event focused on the contribution of #citizenscience to #environmental action and the delivery of Multilateral Environmental Agreements (MEAs). 🔗 Programme link: sched.co/2C5Gs

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CitiObs @citiobs.eu · 01/12/2025

CitiObs Fellow Applications Are Now Open! Become a CitiObs Fellow to gain access to exclusive trainings, tailored tools, and a vibrant peer-learning network. Applications end date: January 11th, 2026 Apply here: 👇 citiobs.eu/demonstratio...

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CitiObs @citiobs.eu · 19/11/2025

CitiObs is co-chairing a session at #EGU26! We’re excited to co-chair a session focused on how #citizen #science supports cities in tackling significant challenges, such as climate change, pollution, and inequality. More info here: 👇👇👇 meetingorganizer.copernicus.org/EGU26/sessio...

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CitiObs @citiobs.eu · 18/11/2025

📢 Nuria Castell will be speaking at the 6th United Nations Economic Commission for Europe Expert Panel on Clean Air in Cities! 📢 She will be presenting the work we’re doing in #CitiObs to advance community-driven #air quality insights.

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CitiObs @citiobs.eu · 13/11/2025

📢 🔔 CitiObs Fellow Applications are open! Are you part of a citizen observatory or community-led initiative focused on urban environmental issues? Then apply now to become a CitiObs Fellow! Applications are open through January 11th, 2026. 👇 👇 👇 citiobs.eu/demonstratio...

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CitiObs @citiobs.eu · 11/11/2025

Heading to #EGU26? We're excited to share that #NILU will be actively contributing to a highly relevant and technical session on: Low-Cost #Air Quality #Sensors: Challenges, Opportunities & Collaborative Strategies Across the World 👇👇👇 meetingorganizer.copernicus.org/EGU26/sessio...

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CitiObs @citiobs.eu · 06/11/2025

📣CitiObs at #ENBEL2025 At the ENBEL 2025 Conference in Tallinn, Nuria Castell (NILU) presented CitiObs in the session “Creative Collaborations for Community-Led Actions and Conscious Cities.” Learn more 👇 citiobs.eu/toolkits/#th...

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CitiObs @citiobs.eu · 31/10/2025

📢 🔔 Exciting opportunity! We're looking for 50 Citizen Observatories or community-led initiatives focused on urban environmental issues to join the final stage of our project as CitiObs #Fellows. To apply and to find out more information, visit our website: citiobs.eu/demonstratio...

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CitiObs @citiobs.eu · 22/10/2025

🌍 📣 The #CitiObs Knowledge Platform is Live! A new interactive hub for everyone involved in citizen science. Unlike traditional repositories, the KP is designed to be interactive! 📲 Scan the QR code to visit the #platform and start exploring. 👇👇👇

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CitiObs @citiobs.eu · 01/10/2025

The deadline is near! 📢 Contribute to #ECSA2026 (7–10 Oct, Univ. of Oulu 🇫🇮). #CitiObs is hosting 3 sessions on data trust, validation & participatory policy. 🗓️ Submit by 7 Oct 2025 www.ecsa2026.ngo/programme/#1...

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CitiObs @citiobs.eu · 23/09/2025

IdeaLab on #Citizen Science for #Arctic Challenges. Researchers and experts from diverse fields came together. The workshop confirmed one thing: #collaboration across disciplines and with #communities is key!

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CitiObs @citiobs.eu · 22/09/2025

💡Session: Panel - Citizen Observatories: Data Awareness and Data Literacy at the Citizen–Policy–Research Interface 📢 Got a case study or experience to share? 📝 Submit your abstract by 7 October: nomadit.co.uk/conference/e... 📍 ECSA 2026 – University of Oulu

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CitiObs @citiobs.eu · 09/09/2025

📣 We’ll discuss #tools, challenges, and emerging standards for turning raw #citizen inputs into actionable, trusted insights that can inform global systems like Copernicus or Global Forest Watch. 👉 Submit your abstract by 7 October: nomadit.co.uk/conference/e...

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