A doctor performs an ultrasound scan on a pregnant woman at a hospital in Chicago.
A new study suggests when a pregnant woman breathes in air pollution, it can travel beyond her lungs to the placenta that guards her fetus.
Pollution composed of tiny particles from car exhaust, smokestacks and other sources is dangerous to everyone. During pregnancy, particle pollution is linked to premature births and low birth weight, but scientists don't understand why.
The placenta helps block damaging substances in the mother's bloodstream.
Belgian researchers used a novel scan to check placentas donated after birth, and spotted a type of particle pollution - sootlike black carbon. Moms from more polluted areas had placentas with more particles.
Tuesday's study was small, and more research is needed to tell if the particles are responsible for fetal harm.
The study was reported in Nature Communications.
In a speech marking the over 25 years of dedicated work at the Corniche Hospital's Obstetrics and Gynaecology Department, Her Highness lauded the hospital, department and staff, adding, "It has been a twenty-five-year journey...and many of you,
Air pollution may affect our physical and psychological health in the long run as researchers have found that the children who are exposed to a high level of air pollution while growing up, have an increased risk of developing schizophrenia.
Vietnam warned its people to limit outdoor activities because the air quality in the Southeast Asian country has persistently been at "unhealthy" levels for days.
According to the study's findings, which were published in the Journal of Marriage and Family, children are spending more time at home with their parents than they were in 2000.
Exercise can likely reduce the risk of heart disease in women with breast cancer, results of a clinical trial has showed.
Thick pollution — from vehicles, factories and power plants — usually makes breathing a suffocating effort in the heart of the city, he said. But a lockdown to slow the coronavirus pandemic has helped cleared the smog.