city skyline smog filled smoke pollution
Palabras clave
pollution,
smoke,
smog,
air,
ecology,
environment,
gas,
icon,
signs,
illustration,
vector,
symbol,
carbon,
factory,
filled,
emission,
sky,
nature,
energy,
exhaust,
toxic,
industry,
dioxide,
atmosphere,
environmental,
cloud,
design,
flat,
background,
plant,
global,
solid,
simple,
web,
pictogram,
eco,
isolated,
warming,
power,
pixel,
honed,
city,
logotype,
graphic,
pollute,
line,
chimney
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