CNN CNN Newsroom Live December 8, 2015 06:24:00
Because the pollution can trigger that as well. >> reporter: air pollution can be made of everything from soot to heavy metals like arsenic and lead. likely now a part of brother nut's pollution break. here's a picture of him pouring the dust into a brick mold. >> translator: air pollution is a problem for everyone. and now we are being deprived of our right to breathe fresh air. >> reporter: his art project went viral. perhaps not surprising in a city where 21 million residents have to deal with pollution every day. >> and that will likely be the topic of conversation for people here in beiji...
Source: archive.org