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| smog | |||
| smog Air pollution consisting of smoke and fog. The air pollution caused by the action of sunlight on unburned hydrocarbons and nitrogen oxides, mostly from car exhaust. It occurs over large industrial areas and urban complexes, and causes eye irritations, breathing problems and damage to plant life | |||
| toxic smoke | |||
| Smog: 7 phrases in 2 subjects |
| Environment | 5 |
| General | 2 |