2. Atmospheric Pollution by Exhaust The second is the production of particulate matter and exhaust gases.
"Down-with-the-Cities"
Nakashima, Tadashi
The increase in carbon dioxide, poisonous gases, and particulate matter in the atmosphere threatens the lives of all living things on our Earth.
"Down-with-the-Cities"
Nakashima, Tadashi
The books and the collections lined the walls, the fans whirred softly in the ceilings, the filters beneath the open windows hummed as they sucked the pollen and particulate out of the rooms - Alan's retail experience had convinced him long ago of the selling power of fresh air and street sounds, so he refused to keep the windows closed, despite the fantastic volume of city dust that blew in.
"Someone Comes to Town, Someone Leaves Town"
Cory Doctorow