KAMPALA, Uganda (AP) — Modest reductions in air pollution can prevent the deaths of tens of thousands of infants in sub-Saharan Africa each year, according to a new scientific study that investigated the link between breathable air pollutants and premature deaths in 30 countries across the continent. Although few pollution monitoring systems exist in Africa, the researchers combined satellite-based data estimating the concentration of air pollutant particles with household health survey data on the location and timing of almost 1 million infant births — and any subsequent deaths — between 2001 and 2015.