hexachlorobenzene perchlorobenzene, hcb banned fungicide molecule. persistent organic pollutant and probable human carcinogen.

hexachlorobenzene perchlorobenzene hcb banned fungicide molecule persistent organic pollutant probable human carcinogen hexa chloride chloro benzene aromatic chlorocarbon seed bunt fungal pollution cancer tumor carcinogenic aquatic water hexachloride hydrogen carbon chlorine atoms atomic molecular compound composition chemical chemistry structure formula line drawing skeletal flat icon