Image: One of the 16 volunteers with the sampler simulating human breathing.  © Greenpeace This was originally posted on Greenpeace International on April 23, 2013. You have seen air pollution before, but not in...

Image: One of the 16 volunteers with the sampler simulating human breathing.  © Greenpeace This was originally posted on Greenpeace International on April 23, 2013. You have seen air pollution before, but not in...

Image: One of the 16 volunteers with the sampler simulating human breathing.  © Greenpeace This was originally posted on Greenpeace International on April 23, 2013. You have seen air pollution before, but not in...

Image: One of the 16 volunteers with the sampler simulating human breathing.  © Greenpeace This was originally posted on Greenpeace International on April 23, 2013. You have seen air pollution before, but not in...

Image: One of the 16 volunteers with the sampler simulating human breathing.  © Greenpeace This was originally posted on Greenpeace International on April 23, 2013. You have seen air pollution before, but not in...

Image: One of the 16 volunteers with the sampler simulating human breathing.  © Greenpeace This was originally posted on Greenpeace International on April 23, 2013. You have seen air pollution before, but not in...

Hot on the heels of our damning report that revealed one third of all Chinese children's products tested for heavy metals at illegal levels or levels of concern, Hong Kong decided to take our heavy metal testing to the streets.

Hot on the heels of our damning report that revealed one third of all Chinese children's products tested for heavy metals at illegal levels or levels of concern, Hong Kong decided to take our heavy metal testing to the streets.

Hot on the heels of our damning report that revealed one third of all Chinese children's products tested for heavy metals at illegal levels or levels of concern, Hong Kong decided to take our heavy metal testing to the streets.