chemical substances; chemicals
material civilization; material civilisation
poisonous substance; toxic substance
carcinogen; carcinogenic substance
carcinogen; carcinogenic substance
fluorescent substance; phosphor
biologically active substance
toxic (poisonous) substance
endocrine disruptor; endocrine disrupting-chemicals
fissile material; fissionables
(high) polymer; macromolecular substance
biological response modifier
biological response modifier
substances requiring priority action (with regard to environmental issues); priority substance
vasoactive substances; vasoactive agents
immune substance; immunity substance