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Home » Online » Here Are Digital Billboards Updating You On Nairobi’s Air Quality

Here Are Digital Billboards Updating You On Nairobi’s Air Quality


The project is dubbed Nairobi air quality awareness and will involve digital billboards which will change colors depending on the amount of pollution.

The Nairobi County government has partnered with the United Nations (UN) Environmental Programme to introduce digital billboards that will monitor the quality of air as well as traffic status in the city.

The project is dubbed Nairobi air quality awareness and will involve digital billboards which will change colors depending on the amount of pollution.

Nairobi County Assistant Director of Environment, Lawrence Mwangi, stated that the county will also use the technology to manage the traffic mess regularly witnessed in the city.

“Real-time air quality monitoring will help us with the issuance of health advisories as well as for the formulation of smart traffic controls that minimize congestion,” Mwangi stated.

Testing the new digital billboards along Mbagathi Way in Nairobi. /TWITTER

Mwangi added that the new system will improve the health status of city residents by reducing their exposure to toxic air substances and particles.

“Dynamic advisories demonstrated through this collaboration will help people limit their exposure to harmful pollutants,” he added.

Inger Andersen, United Nations Environment Programme (UNEP) Executive Director, on his part, noted that the initiative was necessitated by the air pollution menace accelerated by constant city traffic.

“Action on air pollution, which is responsible for millions of premature deaths a year, is critical – efforts should focus on high-risk communities, such as people living in informal urban settlements,” said Andersen

“Innovations to reach and engage the local community and decision-makers alike, can only elevate the understanding of the impacts of air quality and help create an enabling environment improve human and ecosystem health.”

The billboards will offer live updates in terms of air pollution data and will change colour depending on the present quality of air.

“What we are doing is to translate this into a colour scheme, so if the colour is green, the air is acceptable. As the pollution grows because of traffic, those concentrations will increase and the colours on the billboards will change,” UNEP programme manager Sean Khan stated.

Khan added that the colour scheme on the billboards will be beneficial in helping people avoid respiratory diseases.

“Anything other than green and blue is not good for you. If it turns red and you suffer from asthma or any heart disease, you will feel it. You will then have to take steps to protect yourself,” Khan stated.

Other companies that are supporting this project in collaboration with UNEP including IQAir, Safaricom, Alpha, and Jam Ltd, and Metropolitan Star Lite Ltd.

The billboards have been placed in four critical areas in the city with the most traffic that includes Moi Avenue, University Way, Mbagathi Way, and Jomo Kenyatta International Airport.

The project was launched on Tuesday, September 7, on the day the world celebrated the International Day of Clean Air for blue skies.

Massive traffic jams along Mombasa Road. /TWITTER



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