The largest human mass movement occurs each spring in China when 135 million migrant workers leave their factory jobs in China’s smog-choked industrial cities to journey to their home villages in farmlands hundreds and thousands of miles away to celebrate the Chinese New Year.

Employers who integrate their safety initiatives with their health and wellness programming have the potential to improve the overall health and productivity of their workforces, according to a paper published in the June issue of the Journal of Occupational and Environmental Medicine (JOEM).