
The presence of different air and water pollutants in a region could be linked to changes in the human sex ratio at birth, suggests a new study that evaluated over six million births in the US and Sweden.
The analysis, published in the journal PLoS Computational Biology on Thursday, found that sex ratio at birth (SRB) was linked to numerous pollutants, but was not associated with seasons, ambient temperature, violent crime rates, unemployment rates or commute times.