environmental
analysis
background
bag
bio
biohazard
biological
blood
caution
chemical
chemistry
clinic
clinical
container
contaminated
danger
dangerous
dirty
disposal
environment
equipment
experiment
garbage
hand
hazard
hazardous
health
healthcare
hospital
industry
infectious
injection
lab
laboratory
medical
medicine
red
research
residues
risk
safety
sample
science
scientific
syringe
toxic
trash
tube
waste