Dangerous spores in polluted air, infection risk, 3D illustration
Keywords
growth,
germ,
dangerous,
spore,
pollute,
air,
infection,
risk,
three-dimensional,
illustration,
quality,
health,
measure,
symptom,
study,
guideline,
urban,
hazard,
treatment,
allergen,
control,
service,
climate,
airborne,
issue,
public