US-based Harvard School of Public Health scientists and their international colleagues evaluate 500 boys in the heavily-polluted town of Chapaevsk, Russia, finding that those with the highest exposure to industrial and agricultural toxins were, on average, 3 centimeters shorter than their peers.

http://www.smh.com.au/lifestyle/wellbeing/pollutants-stunt-boys-growth-20101230-19ay4.html
http://www.presstv.com/detail/158727.html