Air Pollution w/ Miss Sigamoney

As part of Science Intensive on Air Pollution we went outside wiped objects and surfaces with and paper towel. This is what we found a lot of dirt on our paper towel we have wiped and that is what is causing air pollution...

Here is the previous clean paper towel we have got from our teacher .

Here is what happened after we got our paper towel. Here is all the the dirt that is causing air pollution.