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Technical Background for Air Quality Sensors

Since the emissions scandal involving diesel cars from various manufacturers, urban air quality has come to the attention of many and air pollution is also being discussed in new aspects in connection with the Covid-19 pandemic. At the same time, the range of equipment for measuring various air pollutants is very large and also confusing, especially in the area of inexpensive solutions. It is not easy to keep track and see if it is a product that can fulfil the intended purpose.
At Hawa Dawa, we have been producing a measuring instrument and system for comprehensive air quality measurement for several years. The development of our “Sentience” measuring instrument was driven by the claim to provide a reliable device at a price through the use of new technologies, which also makes wide and tight-meshed coverage possible.
In the following, we would like to try to present the technical complexity of air-pollutant measurement in a simple way and to give indications on this basis, which limits the individual devices and methods have. If you can’t stand it, you will find a link to download a short checklist at the end of the article.

Full version is available in German only

Hawa Dawa secures European Space Agency funding to pave the way for satellite-powered, dynamic and AI-based air quality models

Hawa Dawa has been granted further support by the European Space Agency (ESA) for the work in the satellite data downscaling space, bringing greater transparency to urban air pollution monitoring and management. The Hawa Dawa team is currently mid-way through a successful, fully funded project to help demo, refine and identify new customers in the areas of traffic management, urban planning and healthcare for satellite-enhanced advanced air quality modelling and prognosis services. The current initiative builds on work initiated via support and funding from the ESA-BIC Bavaria program with an additional focus on business and social impact applications. Read more

High levels of significance found in the correlation of air quality data with traffic and weather data: Hawa Dawa concludes an extensive on-site data study


Hawa Dawa has completed a study on the impact of traffic on air quality in a town in southern Germany. The team collected data on air quality and traffic volume in the field and then correlated these values in-house. The aim of the study was to investigate the diverse effects of traffic and weather on air quality levels and pollution behaviour. A further hypothesis tested as part of the study was the extent to which speed limits or speed recommendations have an positive influence on air quality. Read more

CleanAir Network – Hawa Dawa is committed to research and collaboration on air quality

A network of research institutions and industrial partners to co-develop solutions to address the problem of particulate matter

Hawa Dawa is an active member of the CleanAir Innovation Network – an expert platform has been funded by the German Federal Ministry of Economics and Energy (BMWi) within the Central Innovation Programme for Small and Medium-sized Enterprises (ZIM). CleanAir has set itself the goal of connecting competencies in the fields of identification, analysis and reduction of particulate matter and to facilitate the development of products and mechanisms that contribute to clean and healthy air. Read more

Strategic Management of Air Quality Needs Innovation Leaders

This post is available in German only

Frische Luft durch neue Technologien: wohin die Reise gehen kann

Dicke Luft, gesundheitliche Risiken, Fahrverbote: Die Luftverschmutzung in den großen Städten wird zu einem der dringendsten Umweltprobleme unserer Zeit. Immer häufiger überschreiten die Grenzwerte für Schadstoffe – etwa Feinstaub  oder Stickstoffdioxid – die gesetzlichen Limits. Die Städte erteilen dann Fahrverbote auf wichtigen Strecken, doch der Ärger der Pendler bleibt groß, die Schadstoffbelastung ändert sich kaum und die Gefahr von Atemkrankheiten steigt weiter. Die Luftverschmutzung plagt fast alle Länder dieser Welt – und dennoch ist das Bild, das wir von der Luftqualität haben, sehr unscharf und widersprüchlich. Der Grund hierfür ist, dass nur an vereinzelten Orten gemessen wird. Die Messstationen mit der Größe einer Garage sind zudem sehr teuer und daher leisten sich die verantwortlichen Umweltbehörden nur wenige Messstationen. Das Wissen über die tatsächliche Luftqualität ist damit erschreckend lückenhaft. Read more