Source 3

http://www.scientificamerican.com/article.cfm?id=chinas-children-of-smoke
1. This article comes from a magazine called Scientific American.
2. The author of the source is Dan Fagin.
3. He is a journalist from the magazine Scientific American.
4. This website says that the pollution is poisoning children.
5. Yes.
6. I believe this source because it comes from a well-respected magazine.