air
billow
carbon
chemical
co
co2
contaminate
damage
danger
dioxide
dirty
energy
environment
fog
fume
gas
generation
geo
global
grunge
harmful
industrial
manufacturing
nature
ozone
poison
pollute
pollution
power
problem
risk
safety
saturated
saving
silhouette
sky
smog
smoke
smokestack
steam
sulfur
sun
sunbeam
sunny
tower
toxic
warming
waste
yellow
定額
pollution in skyの素材 [FY3109086212]
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