In 2008, Beijing held the summer Olympics, the air was cleaner due to factories and power plants closing and restricted traffic. As we all know, China has struggled with polluted air problems for years, and has noted babies during pregnancy are affected as well. Studies have shown during the 8th or 9th month of pregnancy during the summer Olympics, babies were born 28 grams heavier than the average baby in the earlier and later years. Since the summer Olympics made way for changes to benefit this pollution problem, it showed a positive impact on the health of these babies. During this time, air pollutants were cut from 18-59%. Although it's said in the article that low birth weight doesn't necessarily mean serious complications, but it can lead to diseases later down the road.
"A landmark study released in 2013 found that air pollution cuts life expectancy in China by five and a half years.
Multinational companies find it harder to recruit executives and offer pollution bonuses and expensive air purifiers to convince them to stay."