Home Science First air quality profile of two sub-Saharan African cities finds troubling news TechScience First air quality profile of two sub-Saharan African cities finds troubling news April 6, 2021 56 FacebookTwitterPinterestWhatsApp The first multi-year air-quality data on the cities of Kinshasa and Brazzaville document rampant levels of sooty particles. Source: ScienceDaily.com