A recent study has revealed that exposure to PM2.5 pollution can lead to heightened inflammation levels in pregnant women, increasing the risk of adverse birth outcomes, such as low birth weight and preterm births. The study, published in Science Advances, provides crucial insights into how air pollution affects human DNA and disrupts pregnancy health. PM2.5, which includes tiny particles of 2.5 micrometers or smaller, primarily originates from vehicular and industrial emissions, with natural sources including wildfires and dust. Researchers highlight the need for further understanding to mitigate these risks for pregnant women.