This thesis have researched acute toxicity of four kinds of ocean micro alga contaminated by four kinds of surface-active agent, have got the conclusion that the ranking of toxici'ty of the four kinds of surface active agent is 'Ninol > ABS > JFC > op-10', and the ranking of ability to bear of the four kinds of ocean micro alga is 'P.subcordiformis (Wille)Hazen. > C.radiatus Ehrenb > Chlorella Pacifica > C.carterae (Braar.et Fagerl.) Beaar.
And have initially researched the cause of t...