smog pollution icon

activities atmosphere automobile background banner black board c02 carbon cartoon cloud co2 concept consumption contamination design dioxide dont eco ecological ecology element emblem emis emissions emits emitting energy engine environmental exhaust flat fossil fuel fumes gas human icon idea illustration info label logo modern motor motorcar natural pipe pollutant pollute pollution prevention production prohibited puffing rain red related restricted shadow shape smog smoke sticker style symbol tag traffic transport transportation trash trend truck vector vehicle warning white