irritating smog造句

• On July 18, the Environmental Protection Agency issued new regulations sharply limiting emissions of particulates, or fine soot, and ozone, a key element of lung-and eye-irritating smog.
• Research he has prepared for the Chemical Society meeting indicates it produces 4 percent less carbon dioxide per mile travelled, up to 50 percent less unburned hydrocarbon ( a key component of eye-and lung-irritating smog ), 20 percent less carbon monoxide, and dramatically less toxic benzene.
• It's difficult to find irritating smog in a sentence. 用irritating smog造句挺難的