Question 1

What does Caeli do in air quality and environmental monitoring?

Accepted Answer

Caeli develops data-driven solutions that give organisations insight into air quality and environmental developments. By combining satellite data, artificial intelligence and additional data sources, Caeli makes complex information accessible for policy, research and decision-making.

Question 2

Which organisations does Caeli offer environmental monitoring solutions for?

Accepted Answer

Caeli works with municipalities, governments, engineering and consultancy firms, and organisations working on air quality, sustainability and area development.

Question 3

Which products and solutions does Caeli offer?

Accepted Answer

Caeli develops several environmental monitoring solutions, including the Air Quality Monitor, Carbon Eye and the Stikstof Module. Each solution addresses a specific question, such as local air quality, CO₂ emissions or ammonia concentrations.

Question 4

How does Caeli's technology differ from traditional air quality measurements?

Accepted Answer

Caeli combines several data sources with artificial intelligence to provide additional insight in places without monitoring stations. The Air Quality Monitor, for example, makes air quality analysis possible at neighbourhood level. Traditional monitoring stations remain important as a source of accurate measurements.

Question 5

Can Caeli monitor air quality outside the Netherlands?

Accepted Answer

Yes. The AI model behind the Air Quality Monitor is trained on data from more than 3,500 monitoring stations across Europe. This lets the model estimate NO₂ concentrations outside the Netherlands as well. Applicability and accuracy can differ by region.

Question 6

How can I measure air quality without local monitoring stations?

Accepted Answer

Caeli's Air Quality Monitor gives you insight into local air quality, including in places without a monitoring station. The AI model combines satellite data, weather information, traffic and official measurements to map nitrogen dioxide (NO₂) concentrations. This lets you analyse air quality at neighbourhood level without installing an extensive monitoring network yourself.

Question 7

How does the Air Quality Monitor use satellite data and AI?

Accepted Answer

The Air Quality Monitor uses Argus-AQM, an AI model developed by Caeli. The model combines Sentinel-5P TROPOMI satellite measurements with Copernicus data, weather information, infrastructure, traffic and official measurements, among other sources. From these it estimates monthly average NO₂ concentrations at a resolution of 100 by 100 metres.

Question 8

How reliable is air quality data based on satellite data?

Accepted Answer

The Air Quality Monitor has been validated against data from 73 Dutch monitoring stations. In the Netherlands, its estimates differ from official measurements by 2.3 µg/m³ on average, and the model explains 86% of the variation in measured values. Accuracy varies by location; directly next to busy roads, larger deviations can occur.

Question 9

Which air pollutants can the Air Quality Monitor monitor?

Accepted Answer

The Air Quality Monitor currently maps nitrogen dioxide (NO₂). Models for particulate matter (PM2.5 and PM10) are in development. Historical NO₂ data is available from 2019, so you can follow air quality trends over several years.

Question 10

How can I get access to Caeli's air quality data?

Accepted Answer

You can view Air Quality Monitor data in the dashboard on luchtkwaliteit.nl. Organisations that want to use the data in their own systems can also get access through an API. Get in touch with Caeli to discuss the options.

Question 11

How detailed is the Air Quality Monitor's air quality data?

Accepted Answer

The Air Quality Monitor provides monthly average nitrogen dioxide concentrations on maps with a resolution of 100 by 100 metres. In the Netherlands, the data can be viewed per CBS neighbourhood, with historical data from 2019.

Question 12

Can satellite data replace official air quality measurements?

Accepted Answer

No. Caeli's Air Quality Monitor is meant to complement official monitoring stations. The AI model uses their measurements to estimate concentrations in other locations. Where official measurements are required, the prescribed measurement methods remain leading.

Question 13

What are the limitations of air quality monitoring with AI?

Accepted Answer

The accuracy of AI models can differ by location and application. With the Air Quality Monitor, for example, larger deviations can occur directly next to busy roads. Short concentration peaks are also not always visible in monthly averages.

Question 14

How can Carbon Eye help make CO₂ emissions visible?

Accepted Answer

Carbon Eye is a Caeli solution focused on making CO₂ emissions visible. It helps organisations understand how emissions develop and use those insights in sustainability questions and policy development.

Question 15

Which organisations benefit from CO₂ monitoring with Carbon Eye?

Accepted Answer

Carbon Eye can be relevant for governments, companies and other organisations that want insight into CO₂ emissions. Think of organisations working on climate policy, sustainability targets or area-based analyses.

Question 16

How can CO₂ data contribute to climate policy and sustainability?

Accepted Answer

Insight into CO₂ emissions helps organisations follow developments, identify points of attention and better support policy choices. With Carbon Eye, Caeli aims to make complex information accessible for data-driven decision-making.

Question 17

Which data does Carbon Eye use to analyse CO₂ emissions?

Accepted Answer

Carbon Eye uses data and analysis techniques to make CO₂-related information visible. The exact data sources and analysis methods are determined per application.

Question 18

Can Carbon Eye be used for CO₂ monitoring of a specific area?

Accepted Answer

Want to make CO₂ emissions visible within a specific area or project? Get in touch with Caeli to discuss which applications and geographic options Carbon Eye offers.

Question 19

How can I monitor ammonia concentrations in an area?

Accepted Answer

Caeli's Stikstof Module focuses on making ammonia concentrations and their development within an area visible. This lets the organisations involved follow trends and use the information to support area-based policy.

Question 20

What is the difference between ammonia emissions and ammonia concentration?

Accepted Answer

Ammonia emissions are the amount of ammonia released into the air from a source. Ammonia concentration indicates how much ammonia is present in the air at a given location. This distinction matters when interpreting data and assessing developments.

Question 21

How can nitrogen monitoring contribute to area-based nitrogen policy?

Accepted Answer

Making ammonia concentrations and developments within an area visible creates a better information base for policy and consultation. The Stikstof Module can support the parties involved in following trends and discussing measures.

Question 22

Which organisations is Caeli's Stikstof Module suited for?

Accepted Answer

The Stikstof Module is meant for applications where insight into ammonia concentrations matters. Think of agricultural collectives, governments and organisations involved in area development and nitrogen questions.

Question 23

How can farmers and governments work with the same nitrogen data?

Accepted Answer

The intended way of working with the Stikstof Module is that farmers register measures, and collectives and governments follow developments from a shared overview. This supports transparency and cooperation between the parties involved.

Question 24

How can municipalities monitor and improve local air quality?

Accepted Answer

With Caeli's Air Quality Monitor, municipalities can analyse local air quality at neighbourhood level. By following developments and comparing areas, policy officers gain insight into problem areas and can better support measures. The monitor makes developments visible but does not carry out air quality measures itself.

Question 25

How does Caeli help municipalities with the Clean Air Agreement (SLA)?

Accepted Answer

The Air Quality Monitor supports municipalities in monitoring local air quality as part of the Clean Air Agreement. Municipalities can follow nitrogen dioxide concentrations since 2019, compare neighbourhoods and assess the results against WHO guideline values and European air quality standards.

Question 26

How can a municipality measure air quality without its own monitoring stations?

Accepted Answer

Caeli combines satellite data, weather information, traffic and official measurements in an AI model. This gives municipalities insight into local NO₂ concentrations, even without their own monitoring stations. It makes air quality monitoring more accessible for municipalities with limited measurement capacity.

Question 27

Is air quality monitoring also suitable for small municipalities?

Accepted Answer

Yes. The Air Quality Monitor is also relevant for smaller municipalities that want insight into air quality without an extensive monitoring network of their own. In a clear dashboard, policy officers can follow developments and compare neighbourhoods.

Question 28

How can our municipality start monitoring air quality with Caeli?

Accepted Answer

Get in touch with Caeli for an introduction or a personal demonstration of the Air Quality Monitor. We discuss your municipality's policy goals and show how the available air quality data can support them.

Question 29

How can engineering and consultancy firms use air quality data for research and advice?

Accepted Answer

Caeli's air quality data can be used as additional information in area analyses, policy advice and air quality research. With historical and spatial data, firms can analyse developments and support their advice.

Question 30

Can Caeli's air quality data be integrated through an API?

Accepted Answer

Yes. Besides the dashboard, Air Quality Monitor data is also available through an API. This lets engineering and consultancy firms integrate air quality data into their own systems, analyses and applications.

Question 31

How accurate is Caeli's air quality data for professional analyses?

Accepted Answer

The Air Quality Monitor has been validated against data from official monitoring stations. In the Netherlands, the average deviation is 2.3 µg/m³ and the model explains 86% of the variation in measured values. The data is suitable as an additional source of information; its applicability depends on the type of research and the required accuracy.

Question 32

Can engineering and consultancy firms use Caeli for client projects?

Accepted Answer

Caeli's solutions can provide additional insight in projects for municipalities and other clients. Think of area analyses, air quality research and policy preparation. Specific applications can be discussed with Caeli.

Question 33

What partnership options does Caeli offer consultancies and engineering firms?

Accepted Answer

Caeli is open to working with firms that want to use air quality data in their services. Depending on the application, we can look at data access, technical integration and other forms of partnership.

Question 34

What does the Air Quality Monitor or another Caeli solution cost?

Accepted Answer

For municipalities up to 50,000 inhabitants, the Air Quality Monitor costs € 11.250 per year on a one-year term, or € 9.750 per year on a three-year term. Both prices exclude VAT and include onboarding. For larger municipalities, and for Carbon Eye and the Stikstof Module, costs depend on the application and the agreed use. Get in touch with Caeli to discuss the options and a suitable proposal.

Question 35

Can I request a demonstration of the Air Quality Monitor?

Accepted Answer

Yes. In a personal demonstration we show how the Air Quality Monitor works, which data is available and how it can be applied within your organisation.

Question 36

Can Caeli deliver custom work for environmental monitoring and data integration?

Accepted Answer

Does your organisation have specific needs for environmental monitoring, or do you want to integrate data into existing systems? Caeli is happy to discuss the technical and practical options for your application.

Question 37

Is the Air Quality Monitor suitable for long-term air quality monitoring?

Accepted Answer

Yes. The Air Quality Monitor offers historical NO₂ data from 2019. This lets organisations analyse developments over several years and follow changes in air quality.

Question 38

How can I contact Caeli for advice or partnership?

Accepted Answer

On the contact page you can ask a question, request a demonstration or discuss the options for your organisation. Caeli is happy to help you explore suitable solutions.

Frequently asked questions about air quality

About Caeli

Air Quality Monitor

Carbon Eye

Stikstof Module

Municipalities

Consultancies and engineering firms

Costs, access and partnership

Take the first steps toward a cleaner living environment

Take the first steps toward a cleaner living environment