Exposure to air pollution can significantly lower the chance of having a live birth after in vitro fertilisation (IVF), according to new research that indicates poor air quality impacts fertility at an earlier stage than previously known. The study included roughly 1,800 patients and 3,700 frozen embryo transfers from 2013 to 2021 in Perth, Australia. Researchers analysed exposure to fine particulate matter at various points before the patients’ eggs were collected, and followed them throughout their pregnancies later on. Women who had the highest level of pollutant exposure in the two weeks b…