燃やす
environmental
bio
bio hazard
biohazard
biological
black
burned
burning
burnt
caution
concept
concepts
danger
dangerous
environment
epidemic
fire
flame
flames
glow
glowing
hazard
hazardous
hazards
health
icon
illustration
lab
laboratory
medical
medicinal
medicine
medicines
risk
safety
science
scientific
sign
signal
signs
symbol
symbols
toxic
virus
warn
warning
warnings
waste