experts say when it comes, it s like everybody breathing in a lot of second-hand cigarette smoke. listen. so it affects the heart, the lungs, the brain, and in case of a pregnant mother, affects the placenta, and so there are all kinds of studies showing that people exported to more air pollution have higher rates of heart attacks and strokes and premature death. and in fact a couple of times a year the chinese smog gets so bad it pushes us above the federal safe air standard level. what s the goal of the study? reporter: the hope is to be able to convince people in the united states that when we buy all those cell phones and xboxs and all the toy from china, there are consequences. they are the ones manufacturing most of the goods but also marring most of the smog, and they are exporting that smog. so, maybe the goal is to get them convince the united states and china to get better air