BPS data shows that in 2021, Palembang recorded the highest cases of Low Birth Weight in South Sumatra. One of the factors that cause BBLR is exposure to air pollution, including SO₂, which can trigger inflammation in the lungs and placenta. Disruption of the placenta can inhibit the delivery of oxygen and nutrients to the fetus, increasing the risk of BBLR. This study uses an ecological stud…