A person wearing a mask in a smog-filled city, emphasizing the issue of urban air pollution.
Palabras clave
smog,
development,
earth,
fog,
horizontal,
mask,
photo,
pollution,
skyscraper,
traffic,
beijing,
social issue,
air pollution,
capital city,
city street,
outdoors,
architecture,
city,
city landscape,
environment,
street,
aerial view,
awareness,
climate change,
dusk,
finance,
futuristic,
globe,
highway,
illuminated,
impact,
improvement,
index,
issue,
management,
monitoring,
no people,
planet,
prevention,
quality,
research,
solution,
transportation,
weather,
color image
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