A new study finds a connection between fine-particle air pollution and the rate of stillbirths in low- and middle-income countries
detailing the severity of PM2.5 pollution in each of those countries. The results drew a bright line between the particulate emissions and the incidence of stillbirths.
Maternal age played a significant role in the mortality risk. Relying on DHS data, as well as two existing meta-analyses of stillbirth incidence, the researchers calculated that mothers who lost their children at birth were, on average, 3.81 years older than those whose babies were born successfully. The greatest risk of stillbirth in high PM2.5 countries was among mothers ages 34 years or older.
First, when a pregnant person inhales PM2.5 particles, they enter the bloodstream and may directly cross the placental barrier where they flow into the fetus, leading to low oxygen levels or immune problems in the baby, both of which can be associated with fetal death. There is also the possibility that exposure to PM2.
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