【摘要】 锦州湾污水-海水界面交换带随潮汐而变化,形成低潮（Ⅰ带）、高潮（Ⅱ带）界面交换带。Ⅰ带Pb,Zn,Cd以可溶态(M_AC)为主,不稳定态(M_ACv)向结合态(M_S)转化,Hg以颗粒态(Hg_P)为主,可溶态有机汞（Hg（Y））向无机汞转化。Ⅱ带Pb,Zn,Cd也以M_AC为主,Pb,Cd在低潮寸由M_S向M_ACv转化,高潮时则相反;Zn由Zn_ACV向Zn_s转化,Hg则向Hg_p转化。M_AC在一个潮周期向湾外扩散迁移通量（JM）为:JPb=2.772mg/m²·h;Jcd=5.070mg/m²·h;JZn=139.41lmg/m²·h。更多还原

【Abstract】 The sewage-seawater mixing zone shifts with the tide in Jinzhou Bay. Therefore two inter-facial mixing zones at high and low tide levels are formed. In the mixing zone at high tide level, Pb, Zn and Cd exist mainly in soluble forms and tend to transfer from non-stable forms into bound forms, whereas Hg exists mainly in suspension and soluble organic Hg tends to change into inorganic Hg. In the mixing zone at low tide level, Pb, Zn and Cd exist mainly in soluble forms, but in these forms Pb and Cd tend to transfer from bound forms into non-stable forms, which is in opposition to their behavior at the high tide level, whereas Zn tend to change from non-stable forms to bound ones and Hg appears to change into the form bound by suspended grains. In a tidal period ,advection fluxes of these metals from the bay to out-bay are Jpb = 2.772 mg/m2,h, Jcd= 5.070 mg/m2.h and Jzn = 139.411 mg/m2.h.更多还原