AirGradient air quality monitoring.| AirGradient
Not all particulate matter is created equal. Two environments can show the same PM2.5 value on a monitor, yet be composed of completely different types of particles. One might be mostly fine soot, the other made up of coarse dust. To a typical user, these differences are invisible, but to the sensor inside your monitor, they matter a great deal. At AirGradient, we believe understanding these nuances is essential, especially when it comes to evaluating how accurate or meaningful an air quality...| Articles on AirGradient
Families of Nature - that’s the meaning behind one of our close community partner organisations. Pacha Ayllu is a family-led grassroots organisation in Ecuador, fighting for cleaner air for their children. I recently had the opportunity to talk with Ana Badillo, co-founder of Pacha Ayllu and mother herself. It was inspiring to hear about Ana’s variety of passions - ranging from helping children with disabilities to protecting nature. “After Sophie’s birth, my ecological concern was no...| Articles on AirGradient
Last Thursday, during our 13th Air Quality Forum, we made a big announcement that our team has been eagerly anticipating for months: AirGradient has officially achieved Works with Home Assistant certification! This milestone represents something we’ve been working toward for much of the year, and our team was overjoyed when the news finally came through. We hope you’re as excited as we are about what this means for the future of open source air quality monitoring.| Articles on AirGradient
Below article was written by Kazbek Tursun during his internship in our science team. He digged deep into our massive co-location data and saw some significant deviations just based on the type of reference stations used. What he uncovers raises some profound questions on how we evaluate data from reference stations. The results from reference instruments using the BAM method are actually quite shocking. These expensive “gold standard” instruments show such poor hourly correlation with lo...| Articles on AirGradient
In communities around the world, from the bustling streets of Iloilo City to Douala’s classrooms, a new generation of leaders is rising to the challenge of air pollution. They are scientists, advocates, and community organizers on the front lines, striving for clean air in their communities. A key force in empowering these individuals is the OpenAQ Community Ambassador Programme, a global leadership initiative that AirGradient is proud to support. This programme provides the crucial resourc...| Articles on AirGradient
When we talk about air pollution, we often focus on the present. What’s the air like today? Are PM2.5 levels high? Is it safe to go for a walk, or should we stay indoors? During a recent conversation with Beatriz and Danny from the World Resources Institute (WRI), I was reminded that the real opportunity lies in looking ahead. What if we could see pollution coming before it hits? That’s where air quality forecasting comes in. And for many cities in the Global South, it’s not just helpfu...| Articles on AirGradient
AirGradient air quality monitoring.| AirGradient
Our investigation into tech review credibility began when we encountered a methodologically questionable review of one of our air quality monitors from a major tech publication.| AirGradient Air Quality Monitors on AirGradient
Visualising air quality data for the public eye can be a complex task. While air pollution affects all of us, its impacts are not always tangible and its representation is abstract.| AirGradient Air Quality Monitors on AirGradient
AirGradient air quality monitoring.| www.airgradient.com
Last week, I published a blog post about our experience with a recent WIRED review. In that article, I also shared a link to a survey because I wanted to hear from the community.| Articles on AirGradient
Through my work, I’ve had the chance to meet people from all over the world who are focused on improving air quality in their communities, as well as tackling broader climate issues.| Articles on AirGradient
AirGradient air quality monitoring.| www.airgradient.com
At AirGradient, we’ve always believed that monitoring air quality should go hand in hand with caring for our planet. The connection runs deeper than many realize – air pollution and carbon emissions often share the same sources, from industrial processes to fossil fuel combustion. When our monitors help communities identify and reduce local air pollution, they’re simultaneously contributing to the fight against climate change.| AirGradient Air Quality Monitors on AirGradient
AirGradient air quality monitoring.| www.airgradient.com
Why does clean air living matter? Well, Marta O’Brien, Head of the CALM initiative can answer that for you. Marta started the CALM (Clean Air Living Matters) project in September 2023 in partnership with RBC (Reading Borough Council), Design Nature, Stantec and the University of Reading to promote clean air in and around schools. Marta is the head of the project, credited by her status as a PhD Researcher at the University of Reading - where I also study!| Articles on AirGradient
This blog post was contributed by Agathe, a French engineering student working on a research project with HealthDEEP in Nan Province, Thailand. Her project explores the relationship between forests and air quality by creating a high-resolution air quality map. As part of this work, she is using AirGradient sensors to gather real-time PM2.5 data. In this post, she shares how the project came together and what it’s aiming to uncover.| Articles on AirGradient
AirGradient air quality monitoring.| www.airgradient.com
AirGradient was born from a simple, powerful idea: that anyone should be able to measure their air quality. It grew organically, a grassroots movement fueled by citizen scientists, educators, and health-conscious individuals. Through the passion of our community, we have become what is arguably the fastest-growing low-cost air quality monitoring network in the world, built on a foundation of open-source principles and a desire for shared data.| AirGradient Air Quality Monitors on AirGradient
AirGradient is a leading provider of open-source air quality monitoring solutions at scale, empowering communities and organizations worldwide to understand and improve their air quality.| AirGradient Air Quality Monitors on AirGradient
Since the release of our current monitors - the AirGradient ONE and AirGradient Open Air - we’ve remained steadfast in our pricing of $195 and $190, respectively.| Articles on AirGradient
A few weeks ago, I had the privilege of standing on stage at the UNICEF Innovation Dialogue in Stockholm to share the AirGradient Story and our unique open-source business model.| Articles on AirGradient
AirGradient air quality monitoring.| www.airgradient.com
For years, the indoor air quality (IAQ) monitoring industry has been a black box. Companies have refused to publish their pricing, forcing potential customers through lengthy sales calls and custom quotes just to get a basic number.| AirGradient Air Quality Monitors on AirGradient
AirGradient air quality monitoring.| www.airgradient.com
AirGradient air quality monitoring.| www.airgradient.com
Project Details This Low-Cost Hyperlocal Air Quality Monitoring Toolkit is meant to be a practical, all-in-one package that makes it easier for anyone to set up and run an air quality monitoring network.| Articles on AirGradient
Project Details Led by a research team from Universitas Brawijaya, supported by Nafas Indonesia, this initiative is part of NIHR CLEAN-Air Indonesia’s ongoing work to support clean air efforts through local engagement and accessible data.| Articles on AirGradient
We would like to give a big thank you to Dr. Lekan Popoola, Senior Research Associate at the University of Cambridge for assisting our science team with the following research.| Articles on AirGradient
Project Details Led by UNICEF Lao PDR and supported by national ministries and local partners, this project aims to close the country’s air quality data gap and protect children’s health.| Articles on AirGradient
AirGradient supplied 2,000 air quality monitors to UK schools as part of the SAMHE project for the largest study on classroom air quality in the world.| AirGradient
AirGradient, supported by Amazon Web Services (AWS) collaborated to provide 100 air quality monitors to the Mechai Bamboo School Foundation.| AirGradient
AirGradient donated 30 outdoor air quality monitors to Pai, a small town in Northern Thailand.| www.airgradient.com
Bringing together developers, data scientists, and environmental experts, the hackathon focused on creating innovative digital solutions to monitor, analyze, and reduce air pollution.| AirGradient
Discussions about Carbon Dioxide (CO₂) and climate change typically focus on its role as a greenhouse gas driving global warming. However, a growing body of evidence warns us about the direct physiological threat that rising CO₂ levels pose to human health, particularly in indoor environments where concentrations can far exceed outdoor levels.| Articles on AirGradient
AirGradient air quality monitoring.| www.airgradient.com
You’ve probably been seeing the news about tariffs and international trade, and maybe you’re wondering: “How does all this affect my AirGradient order, especially if I’m in the US?”. First, I want to acknowledge that this creates uncertainty. It’s not ideal for you, us, or our mission to get more accurate air quality monitoring out into the world. But here’s the important part: we will manage this. We’ve tackled challenges before, and we’ll navigate this one, too, staying fo...| Articles on AirGradient
The AirGradient team is excited to be part of the upcoming Air Sensors International Conference (ASIC) and looks forward to meeting you in Bangkok! We will have a booth at the conference and will be giving out free AirGradient monitors to each participant.| Articles on AirGradient
This article is part of a series, where we explore the hidden complexities of PM2.5—tiny airborne particles that impact air quality and health. We will uncover the ambiguities behind its measurement, the challenges in assessing health risks, and the surprising insights that emerge. Each article will tackle a different aspect of PM2.5, shedding light on its hidden dilemmas and unanswered questions. Today’s article discusses the fundamental dilemma of particle size.| Articles on AirGradient
Air pollution is a significant threat to public health, impacting well-being and daily life. From everyday discomforts to serious long-term illnesses, the effects of poor air quality are far-reaching. A 2019 World Health Organization report indicated that 99% of the global population lived in areas exceeding WHO air quality guidelines, and this situation remains largely unchanged. This is the driving force behind the development of the AirGradient-UNDP Air Quality Toolkit: to provide communit...| Articles on AirGradient
Introduction In September 2024, we published an article about PM2.5 and how the EPA correction algorithm improves the accuracy of AirGradient’s monitors. We observed that our sensors, the PMS5003 from Plantower, systematically overestimate PM2.5 when concentrations are above 10 to 20 µg/m3. The algorithm from the EPA ( equation 4) does a great job of bringing down the high readings. Meanwhile, we have implemented the algorithm for our outdoor and indoor monitors, as explained here. Today...| Articles on AirGradient
“This article was originally published in German on Junicast by a community member. We are posting it in English with the permission of the writer.”| Articles on AirGradient
Why is wildfire risk increasing? According to the U.S. Drought Monitor, since the start of the water year (October 01, 2024) there has been extreme to near-record dryness which has expanded and intensified drought conditions in southern and central California and Nevada. Adding to the risk, strong Santa Ana winds have swept across Southern California, creating the perfect conditions for wildfires to spread rapidly through dry vegetation.| Articles on AirGradient
“This is an article written by Aaron, a member of our community who recently got an AirGradient air quality monitor to better protect his family’s - and particularly, his new baby’s - health. Aaron also works from home and writes about how his AirGradient ONE has been able to better improve not only his health and wellbeing but also his productivity. We would like to thank Aaron for discussing his experiences with indoor air quality and would also like to extend this invite to other mem...| Articles on AirGradient
Air pollution represents a critical environmental health challenge globally, particularly in rapidly developing nations. In Lao People’s Democratic Republic (PDR), the escalating levels of air pollution necessitate robust monitoring and mitigation strategies to safeguard public health, especially that of vulnerable populations such as children. Historically, access to real-time air quality data in Lao PDR has been severely limited.| Articles on AirGradient
All around the world air quality monitoring data is becoming unavailable as the U.S. government has stopped publicly sharing their air quality data from over 80 embassies. Without air quality monitoring data, especially in heavily polluted regions public health is negatively impacted and vulnerable population groups will be susceptible to worsening health impairments.| Articles on AirGradient
For around a year we have been in touch with another monitor manufacturer that produces its own monitors but also runs a very popular map application. It seems that they are happily using our data (completely for free from now more than 1000 monitors) but when I recently asked them to share the data from their own monitors they refused.| Articles on AirGradient
Can you really trust the air quality data you rely on? Prompted by a lack of transparency within the field of air quality monitoring, that’s a question we set out to learn more about a couple of months ago. In a field in which public health and environmental research and policies are directly based on data from air quality monitors, how much of an impact do ‘black box’ monitors and sensors have on muddying our results?| Articles on AirGradient
On January 17, AirGradient had the opportunity to talk with Pacha Ayllu, a grassroots community group based in Ecuador composed of parents, grandparents, aunts, and uncles, who are all dedicated to ensuring a healthy future for the children of Ecuador. The team – Ana Badillo, Gabriela Tobar, and Tannya Pico – reached out to propose the creation of a Family-Led Clean Air Observatory. This aims to provide real-time air quality data to the citizens of Ecuador, giving them access to the infor...| Articles on AirGradient
You might have the impression that your outdoor air quality monitor would work just as effectively anywhere else in the world, but that’s just not the case. Low-cost air quality monitors (LCS) are sensitive to various environmental conditions such as temperature, humidity, and different sources of pollution. In regions such as West Africa, these conditions are particularly unique, as they’re shaped by extreme seasonal shifts and the Harmattan period – a dry and dusty northeast trade win...| Articles on AirGradient
Let’s talk about boldness. If you’ve been following AirGradient, you know one thing for sure: we don’t shy away from speaking our minds. You’ve seen us call out issues, question industry practices, and sometimes even directly address individuals when we felt things weren’t quite right in the air quality world. But there’s always been a reason behind it.| Articles on AirGradient
Community and citizen science are foundational to my vision for AirGradient. But for quite some time now, I’ve noticed something that needs to be called out: the increasing use of ‘community air monitoring’ and ‘citizen science’ by many air sensor companies. While the words sound great, I wonder:| Articles on AirGradient
On January 28-29, we hosted a two-day workshop in Chiang Mai, Thailand, bringing together participants from UNICEF Lao PDR, the Lao Ministry of Education and Sport, the Ministry of Natural Resources and Environment, Maker Box Lao, and Lao Telecom. The workshop aimed to equip participants with essential knowledge and skills in air quality monitoring, data interpretation, and capacity building. It was organized in connection with the deployment of 160 AirGradient air quality monitors at schools...| Articles on AirGradient
One of the biggest challenges with consumer-grade air quality monitors is knowing whether or not they are accurate. The best way to find out about the accuracy of a sensor is to compare it to a standard reference instrument. Unfortunately, in the case of particulate matter (PM1, PM2.5 and PM10), a reference-grade air quality monitor costs tens of thousands of dollars, putting it out of the range of most organisations, individuals, and businesses. This means there are very few organisations or...| Articles on AirGradient
In our past blog articles, we’ve discussed the many unique ways people are presenting air quality data. From maps to illuminating light towers, we’ve documented various approaches. This time, we want to shine a light on air.nmn.gl, a website that acts as a real-time air quality impact calculator, transforming complex AQI metrics into “immediately understandable health consequences.” Instead of just presenting pollution levels, it translates them into real-world effects – like how ma...| Articles on AirGradient
This article is part of a series, where we explore the hidden complexities of PM2.5 — tiny airborne particles that impact air quality and health. We will uncover the ambiguities behind its measurement, the challenges in assessing health risks, and the surprising insights that emerge. Each article will tackle a different aspect of PM2.5, shedding light on its hidden dilemmas and unanswered questions. Today’s article discusses the variety of different airborne particles.| Articles on AirGradient
We all know PM2.5 is a major contributor to air pollution causing severe health damage around the globe. But do you know what PM2.5 actually means? You would be surprised to learn that there is no clear numerical answer to the total mass of airborne particles smaller than a certain size, e.g. 2.5 micrometers.| Articles on AirGradient
Rising concerns about air quality are driving innovative solutions worldwide. One of the best examples of this can be seen in the lights that are displayed on the Namsan Seoultower. Located at the heart of Seoul with a height of over 240 meters, the tower can easily be spotted by those even in the furthest vicinities of the capital. While it may initially seem like the colours are randomly displayed, they serve a much bigger purpose. The tower’s lights serve as a visual air quality monitori...| Articles on AirGradient
When I ask you to imagine a change maker, what do you envision? Perhaps a politician, a diplomat, or someone with a high level of authority – sitting in a conference room, making important decisions and shaping policies. But why is it so hard for us to imagine young people in this role?| Articles on AirGradient
Update #1 (21 January 2025) We’ve had an overwhelming number of responses to the survey, with well over 100 replies. Therefore, we’ve decided to do two things. Firstly, we’ve decided to close the form tomorrow (Wednesday, 8 pm Bangkok time). Secondly, we will be doubling our donation to 50 monitors, as we have realised how many people are in need.| Articles on AirGradient
Leading AirGradient, and seeing our air quality monitors find their place in homes and schools worldwide has been an incredibly rewarding experience. It’s a journey deeply intertwined with the satisfaction of knowing we’re empowering individuals with crucial information about the air they breathe.| Articles on AirGradient
In late 2024, we discovered a calibration issue with the Plantower PMS5003 sensors in AirGradient ONE indoor air quality monitors. These sensors read significantly lower PM levels than previously, which often results in these sensors consistently showing zero at low concentrations. We found this issue quite widespread, impacting many batches of PMS5003 sensors.| Articles on AirGradient
For the past few years, we’ve been driven by a simple goal: to put the power of accurate air quality data into the hands of as many people as possible. That’s why we’ve been so proud to offer the AirGradient dashboard completely free of charge. Many of you even received a year or two of included access when you purchased your monitor, and even after that initial period, we haven’t actually switched on any charges.| Articles on AirGradient
We’ve talked a lot about open hardware and our commitment to it here at AirGradient, and it’s not just a philosophical stance for us. It’s deeply connected to a principle that I think is becoming increasingly important: the right to repair. When you buy something, especially something designed to help you protect your health, it shouldn’t be a disposable item. And that’s exactly what many air quality monitor manufacturers seem to be pushing us towards.| Articles on AirGradient
At AirGradient, we recognize that young people are at the forefront of the environmental movement. Their passion, fresh perspectives, and dedication are vital to addressing the critical challenges of air pollution and climate change. Inspired by our work with UNICEF, which focuses on supporting initiatives that empower youth, we are strengthening our commitment to nurturing and empowering young leaders within our team and beyond.| Articles on AirGradient
As you might have already read, Black Friday is something we don’t participate in for several reasons. It is a holiday that embodies everything we stand against – overconsumption, impulse buying, and the harmful environmental consequences that come with it. But we recently learned that it doesn’t have to be that way. We decided to participate in the event in a way that was more aligned with our mission and values. After thoughtful consideration, we decided our intentions were best expre...| Articles on AirGradient
VOCs (volatile organic compounds) are a large group of organic chemicals that easily evaporate into the air at room temperature. They have a wide range of natural and synthetic sources and can significantly impact indoor and outdoor air quality. Because some VOCs can adversely affect human health and the environment, they are often discussed in the context of air pollution and health.| Articles on AirGradient
Wildfires are intensifying, and their impact on air quality and, consequently, our health is becoming increasingly alarming. While the dangers of long-term exposure to fine particulate matter (PM2.5) are well-documented, emerging research reveals a particularly disturbing trend: PM2.5 from wildfires carries a significantly higher risk of dementia compared to PM2.5 from other sources. A recent study in JAMA Neurology provides compelling evidence of this disproportionate threat and emphasizes t...| Articles on AirGradient
About a year ago, when we needed to extend the team, I hired two developers from Ukraine. I was fully aware of the situation there and that it could impact the company, e.g. through infrastructure failures that could make communication harder. However, after I interviewed both of them, I was extremely impressed by their skills, strength, and professionalism. Combined with my personal desire to take a stand, it was then an easy decision to hire them.| Articles on AirGradient
We don’t like Black Friday. Why? Because the day has become synonymous with overconsumption, FOMO, and, often, the purchase of things we don’t really need. On top of that, it’s no secret that this shopping frenzy has a massive environmental impact. As a company that values transparency, sustainability, and social responsibility, we’ve never been huge fans of what Black Friday represents.| Articles on AirGradient
We hear comparisons a lot. How does AirGradient compare to Airthings ? How about PurpleAir ? There are many more we could list, and we hear these every day. This is a natural question for any customer who is wondering what product to buy because no one wants to buy a bad product!| Articles on AirGradient
This past week, we had the opportunity to engage in a one-week workshop at the Empa, an interdisciplinary research institute within the ETH Domain. The workshop focused on advancing air quality technologies and, held in a unique “double hybrid” format, it brought together experts and participants across two distinct locations: a sensor-focused group gathered in Dübendorf, near Zurich, Switzerland, while a drone-focused group collaborated from Nicosia, Cyprus. This format was tested as a ...| Articles on AirGradient
For the past few years, we’ve used the SenseAir S8 carbon dioxide sensor in our indoor and outdoor monitors. After running a range of tests, we believe this sensor offers the best balance of features for our monitors, and we’ve been very happy with its performance.| Articles on AirGradient
Recently, Kaiterra launched a cool new product: the Sensedge Go, a wireless indoor air quality monitor that claims to run up to 8 years on one set of batteries. Since we are also working on reducing the energy consumption of our monitors, we identified that most power is consumed by the PM module.| Articles on AirGradient
Over the past few weeks, many customers have contacted us with an issue where the PM sensors on their indoor monitors show relatively low concentrations of PM1.0, PM2.5, and PM10 compared to other monitors. At first, we thought this was an isolated issue, but we see it more frequently now and have started investigating this issue.| Articles on AirGradient
In celebration of the International Day of Clean Air for Blue Skies, we wanted to contribute to the mission of raising awareness about air quality. The United Nations General Assembly designed this day to strengthen international cooperation and reduce air pollution—values that align closely with our goal to positively impact air quality globally.| Articles on AirGradient
Inspired by the recent mud house story published by the Chiang Mai Grow-operative, we emailed our community with a newsletter asking for stories about how monitoring air quality has impacted their lives. The response was incredible - over 20 people from all corners of the globe shared their experiences with us.| Articles on AirGradient
In 2013, China experienced an “airpocalypse,” where the air quality drastically deteriorated, making clean air a luxury only the wealthy could afford. During that time, air purifiers on the market were priced at around $1000, a cost prohibitive to many. This raised an important question: Why did these machines cost so much? Did clean air really have to be that expensive?| Articles on AirGradient
Measuring CO2 indoors as well outdoors has very different use cases. Indoors it can give you a good indication how well your house is ventilated and high CO2 values can impact cognitive performance. Outdoors, measuring CO2 can give you an indication on local emission sources that contribute to climate change.| Articles on AirGradient
Low-cost air pollution monitors have many advantages, such as size and price. On the other hand, these monitors provide estimates for PM2.5 with higher uncertainties compared to expensive reference monitors. We are aware of these uncertainties, and hence, we have initiated a global co-location project, where we sent our Open Air outdoor monitors to more than 20 sites around the globe. Our invaluable local partners have set up these monitors next to their reference stations and made their refe...| Articles on AirGradient
At AirGradient, our mission is deeply personal. Our journey began when our founder, Achim, experienced the harsh reality of wildfire smoke during the 2019 Thailand fires (shown in the photo below). Since then, our team has grown to include many more members from around the world, and we all share one thing in common - we believe everyone has a right to clean air.| Articles on AirGradient
We are a team of high school students studying PM2.5 levels across Milton, Ontario. After noticing the increased amount of construction and traffic in the city, the team was inspired to investigate PM 2.5 – an emerging contaminant and major contributor to air quality. Together, we are working to understand how PM 2.5 in hyperlocalised areas in Milton compare to recommended guidelines and the influence of environmental factors on PM concentration.| Articles on AirGradient
The Energy Policy Institute at the University of Chicago (EPIC) has announced that applications for the EPIC Air Quality Fund! This fund offers a unique opportunity for organisations to secure financial support for air quality monitoring projects that aim to generate actionable data and create a lasting national impact. EPIC will award grants to 10-15 selected groups, with funding amounts ranging from approximately $50,000 for lower-cost sensors to $75,000 or more for regulatory-grade or refe...| Articles on AirGradient
As awareness of the impact of air quality on health grows, more people are turning to air quality monitors to protect themselves and their families. Whether you’re looking to review a device, assess the performance of your current monitor, or considering a new purchase, understanding how well your air quality monitor works is crucial. With the increasing popularity of these devices, it’s not surprising that they’re receiving more attention from both large and small media outlets, blogs,...| Articles on AirGradient
From the start, AirGradient was built around the mission of combating air pollution. To empower a global audience to create high-quality and reliable air quality monitors, we open-sourced our hardware designs. This allows anyone to build these monitors without needing to pay us directly. We have now grown the AirGradient team to around 15 people.| Articles on AirGradient
Last week, I had the privilege of representing AirGradient in the “Enhancing Air Quality Data Access in Africa” meeting in Kigali, Rwanda. The event brought together policy-makers, scientists, and innovators to discuss strategies for tackling air pollution in Africa. The organiser was Radiant Earth, a non-profit organisation dedicated to expanding global collaboration through improved data sharing and access.| Articles on AirGradient
AirGradient air quality monitoring.| AirGradient
AirGradient air quality monitoring.| www.airgradient.com
AirGradient air quality monitoring.| www.airgradient.com
AirGradient air quality monitoring.| www.airgradient.com
AirGradient air quality monitoring.| AirGradient
AirGradient air quality monitoring.| www.airgradient.com
AirGradient is testing its outdoor monitors in more than 20 locations across the globe.| www.airgradient.com
AirGradient air quality monitoring.| www.airgradient.com
AirGradient air quality monitoring.| www.airgradient.com
