All of the information it contains talks about basic info on indoor and outdoor pollution that could be learned from anywhere. On another note, the Natural Resources Defense Council gives more detailed information than the WHO and successfully answers everything that the title “Asthma and Air Pollution” could possible want to know. However, because it centers on mainly asthma, it makes it seem as if asthma is the only health issue that air pollution can cause, which is not true. As a result, as overall sources for research, these articles would not be good to use as they only inform on the bare minimum of the issue.
However, there was one informative source among the three: the National Institute of Environmental Health Sciences. This information would be a good source to include in a research paper because it not only explained the issue of air pollution but it also explained how we can reduce our exposure to air pollution and also what the NIEHS is doing to put a stop to air pollution.