отруйна речовина
non-toxic harmful substance
highly toxic substance
toxic
toxic agent
toxic chemical agent
toxic free area
toxic material
toxic report
toxic fume
combustible substance
flammable substance
illicit substance (counter-narcotics)
substance abuse
working substance
inflammable substance
ozone depleting substance
substance
biological active substance
explosive substance
hazardous substance
liquid state of substance
low global warming potencial substance
nitrogen-containing substance
priority substance
pyrotechnic substance
soluble substance
radioactive substance