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首页> 外文会议>International symposium on halogenated persistent organic pollutants >BIOACCUMULATION OF MERCURY IN OYSTER (Plicatula Gmelin) EXPOSED TO WASTE SEAWATER DISCHARGED FROM A COAL-FIRED POWER PLANT WITH SEAWATER FLUE-GAS DESULFURIZATION:A FIELD STUDY
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BIOACCUMULATION OF MERCURY IN OYSTER (Plicatula Gmelin) EXPOSED TO WASTE SEAWATER DISCHARGED FROM A COAL-FIRED POWER PLANT WITH SEAWATER FLUE-GAS DESULFURIZATION:A FIELD STUDY

机译：海水烟气脱硫的燃煤电厂排放的牡蛎中牡蛎（藜麦）的汞生物积累：实地研究

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A field experiment was conducted to study Hg bioaccumulation in oyster exposed to waste seawater discharged from a coal-fired power plant with seawater flue-gas desulfurization (FGD) technique. Young oysters were placed in the outfall of the power plant and control site, respectively. The total Hg (THg) concentrations of seawater in the outfall and control sites were determined as 120.4±55.2 and 2.6±1.1 ng/L, respectively, while the methyl Hg (MeHg) 0.98±0.12 and 0.10±0.02 ng/L, respectively. The THg in oyster from the study site increased dramatically from 154.5±23.5 ng/gto 3011.9±289.9 ng/g in 7 d, and kept high between 2535.5 ng/g and 4489.6 ng/g for the next 34 d. During the 41 d, the THg in oyster in the control site kept low between 60.7 ng/g and 137.5 ng/g. The MeHg in oyster from the study site showed no significant change, ranging from 59.0 ng/g to 62.0±9.5 ng/g, and from the control site showed slight decrease to 15.6 ng/g, after 41 d exposure. The study showed that Hg species in the waste seawater was mainly inorganic, and there was no evidence of bio-transformation from inorganic Hg to MeHg in oyster.
机译：进行了野外实验，以海水烟气脱硫（FGD）技术研究暴露于燃煤电厂排放的废海水中的牡蛎中的汞生物富集。将牡蛎分别放在发电厂和控制站的排污口。确定出水口和控制地点的海水总Hg（THg）浓度分别为120.4±55.2和2.6±1.1 ng / L，而甲基Hg（MeHg）分别为0.98±0.12和0.10±0.02 ng / L 。研究地点的牡蛎中的THg在7天内从154.5±23.5 ng / g急剧增加至3011.9±289.9 ng / g，在接下来的34 d中保持在2535.5 ng / g至4489.6 ng / g之间。在第41天期间，对照组牡蛎中的THg保持在60.7 ng / g和137.5 ng / g之间。暴露41 d后，来自研究地点的牡蛎中的MeHg无明显变化，范围从59.0 ng / g至62.0±9.5 ng / g，而来自对照地点的牡蛎中的MeHg略有下降至15.6 ng / g。研究表明，废海水中的汞物种主要是无机的，没有证据表明牡蛎中有从无机汞到甲基汞的生物转化。

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