alert
background
bin
biohazard
biological
black
blood
chemical
clinic
clinical
collection
container
contaminated
control
danger
disposable
disposal
environment
garbage
general
hazard
hazardous
health
hospital
illness
infection
infectious
isolated
management
medical
medicine
plastic
pollution
radioactive
recycle
recycling
red
risk
rubbish
separation
sign
surgical
symbol
toxic
trash
waste
white
yellow