摘要：Hexadecane is one of the main chemical compounds in Cooking Oil Fume Condensates (COFCs), whichhas been proved to influence the vegetative growth of Salvinia natans (L.) All. significantly. Its effects on thegrowth of S. natans were studied by using static toxicity testing method in this paper. The results showedthat relative growth rate (RGR), leaves, buds and stems of S. natans were inhibited significantly whenexposed to higher concentrations. Hexadecane could accelerate the leaves of S. natans becoming yellow ordecomposed. Biomass went down with the increase of hexadecane concentrations. The LC 50 on day 4 andday 12 after treatment were 275 mg/L and 244 mg/L, respectively. Hexadecane had no effect on the pH valueand conductivity of the cultivation medium. It can be concluded that hexadecane would significantly affect thevegetative growth of S. natans., and S. natans is sensitive to hexadecane that might be useful as an indicatorof hexadecane pollution in freshwater.
