‌‌Safaricom, UNEP Launch Digital Billboards to Bring Real-time | Techspace Africa

‌‌Safaricom, UNEP Launch Digital Billboards to Bring Real-time Air Pollution Data to Nairobi

https://tech-space.africa/safaricom-unep-launch-digital-billboards-bring-real-time-air-pollution-data-to-nairobi/