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Smart cities for smart citizens

New technologies enable a new level of citizen information and participation

The “Citizen Information” Products of Hawa Dawa enable municipalities to digitally provide information on air quality to citizens in a “moderated” way. Citizen information is becoming increasingly important: on the one hand, because today’s information media have created a new standard, which is expected as the usually available information, and on the other hand, because those affected would like to form their own opinion on pressing, important issues, which is based on up-to-date data.

Information management is therefore increasingly playing an essential role for municipalities. Facts must be made available through selected, reliable channels to provide a severe basis for public opinion- formation, especially in the times of conspiracy theory and “fake news”. Consistent information for citizens promotes acceptance of measures and can also be transformed into increased civic engagement. Read more

Use existing urban infrastructures to measure air quality: “Smart Poles” of Westenergie and Hawa Dawa devices intelligently combined

Hawa Dawa is working with Westenergie AG’s Smart Pole Factory. In a project of the company in Essen, Hawa Dawa Sentience air measuring devices are installed in smart pole lights.

In a smart city, information on air quality can provide citizens with real value and, for example, help to improve the city’s transport planning. The Hawa Dawa air measuring devices are now being used in a pilot project of Westenergie. Together with the city of Essen and the Essen era supply and transport company mbH (EVV), Westenergie is testing intelligent street lights here. The so-called smart poles are equipped with sensors that also detect the parking space, for example. In addition to particulate matter, ozone and nitrogen, the Hawa Dawa Sentience devices also collect environmental data. The air quality data is transmitted to the Westenergie platform, which prepares this data for the municipalities and provides a clear presentation on the dashboard. On the six digital screens attached to the smart poles, information on local air quality can also be displayed directly to citizens.

Karim Tarraf, Managing Director of Hawa Dawa, explains: “We know from our discussions with municipalities that the Smart City initiatives are designed to make the urban environment more livable in an efficient way. Hawa Dawa solutions start right here: they can be used in both existing and new structures to digitally display air quality information efficiently and comprehensively. The cooperation with Westenergie in Essen shows what this can look like in reality. Intelligent street lighting is an important infrastructure element of a smart city. Also, our devices are designed in such a way that urban LoRaWan or GSM is used for data transfer. In this way, the bundling of individual technologies into holistic solutions brings significant added value for cities and citizens and focuses on improving the quality of life. Solution ecosystems are the economic form of the future. We are open to presenting the data ourselves in our dashboard products or, as in the case of Essen, to make the data available via an interface (API) for further use.”

Hawa Dawa’s approach is, as far as possible and sufficient, to use existing infrastructure and air quality measurements to make relevant air quality information available. The display of air quality information, which is processed depending on the application, can be carried out on an intuitive dashboard or by direct integration into downstream systems – e.g. for environmentally sensitive traffic control. Where the existing data density is not sufficient for the application, the installation of Hawa Dawa Sentience IoT measuring instruments can cost-effectively add additional measuring points.

City of Ulm selects technology of Hawa Dawa

Hawa Dawa becomes part of the project zukunftskommune@bw in the city of Ulm

Hawa Dawa was awarded the contract within the public tender for the procurement of LoRaWan-capable air/climate sensors in the Eselsberg project area in the city of Ulm. Hawa Dawa will install a network of several Sentience air quality measurement devices, develop a comprehensive display from the measured values and feed the data via API into the Ulm data platform, which is currently under construction. The data will be made available as open IoT data. Read more

Hawa Dawa establishes a local network for measuring air quality in the city of Seelze

Hawa Dawa has been commissioned by the city of Seelze to establish a local network of IoT (Internet of Things) measuring instruments. A total of three Hawa Dawa Sentience air measurement devices will provide hourly values for nitrogen dioxide (NO2), ozone (O3), and particulate matter (PM2.5 and PM10) in places identified by the city of Seelze as useful.

 In the city of Seelze live 36,000 inhabitants on an area of 54 square kilometres. Seelze neighbours directly to the west on the state capital of Lower Saxony, Hanover. There are no permanently installed public measuring stations in the city of Seelze. Temporary measurements did not show that the official threshold value for NO2 of 40.0 micrograms per m3 was exceeded. Nevertheless, the city of Seelze is aware of the health risks posed by polluted air even below the legal limit and has decided to actively address this problem. The first step is to obtain clarity on the current air quality.

The Hawa Dawa solution for Seelze presents the measured values close to real-time in digital form on an interactive dashboard. Monthly reports provide in-depth insights into patterns and timing, taking into account temperature and wind data. By using Hawa Dawa IoT air measurement devices, Seelze can determine the locations where the measurements will be made, taking into account local requirements. The Hawa Dawa PRO Dashboard used by Seelze enables additional insights on air quality in Seelze to be gained through a heatmap display – after all, information about the places where people are actually staying are crucial.

Karim Tarraf, CEO of Hawa Dawa, explains: “Many smaller to medium-sized cities are in the situation of Seelze, that there are no public measuring stations. The decision-makers do not have up-to-date information on the impact on air quality caused by traffic and other issuers. We believe that local air quality facts are a prerequisite for taking effective action against air pollution and protecting the population. Here, mere measurements are not sufficient, but it is imperative to analyse the data in context. We are pleased to support the city of Seelze in this project.”

Hawa Dawa provides data-based decision-making platform to reduce urban traffic-induced emissions in Mainz

Better urban air quality does not need drastic measures – but a meaningful database for decisions

Hawa Dawa has been commissioned by Stadtwerke Mainz with an innovative and result-driven project: creating a sustainable data-based decision-making basis. Hawa Dawa will propose stepped measures to improve urban air quality based on their projected impact on air quality, applying data-based analyses, and forecasts. For this purpose, an intelligent infrastructure for collecting environmental and traffic data as well as a data platform for evaluation is established. Read more

Mitigating the Health Impact of Air Pollution: Hawa Dawa wins innovation competition in Northern Ireland


Hawa Dawa wins Small Business Research Initiative innovation competition run by a consortium of partners including the Northern Ireland Department for Economy to undertake innovative piece of work linking the effects of air pollution and health.

Ambient, outdoor, pollution is a significant contributor to urban asthma and diabetes events and hospitalisations whilst at the same time actually being a manageable problem with the use of better monitoring technology, granular data analysis and intuitive digital tools. 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

Meschede secures a pioneering position in air quality management


Hawa Dawa and the city of Meschede are expanding the observation period agreed as part of the “Smart Air City” campaign by further six months to one year. Thus, Meschede supports the intention to actively address the issue of air quality.

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Hawa Dawa Installs the Largest Air Quality Measurement Network in Germany


Hawa Dawa installs 35 sensor nodes across the municipal area of the NordAllianz near Munich. The eight members of the NordAllianz; Eching, Garching, Hallbergmoos, Ismaning, Neufahrn, Oberschleißheim, Unterföhring and Unterschleißheim have decided to implement a digital measurement network for tracking urban air quality that relies on Hawa Dawa’s smart technology. The company already operates similar measurement networks in the cities of Munich, Germering, Meschede and Bern. These networks deploy Internet of Things (IoT)-capable sensor nodes and are targeted to increase transparency on air quality for citizens and decision-makers. Read more

Potential for traffic management to reduce pollution hotspots shown in Munich pilot

Hawa Dawa, in collaboration with Siemens Mobility and ryd, have demonstrated the effectiveness of an eco-routing pilot launched at the end of 2018.

The four-week pilot, ‘Saubere Luft in München’, or SLIM, was designed to test the hypothesis that data-based route recommendations could encourage individual drivers within Munich to actively (and repeatedly) select their upcoming journeys according to forecast pollutant levels along their most commonly travelled routes. Read more