Mercury
Mercury
Mercury
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The transport of PCBs in water<br />
• PCBs enter into water (rivers, lakes and coastal water<br />
bodies) mainly through the process of atmospheric<br />
precipitation and the discharge of industial sewage,<br />
etc.<br />
• PCBs in water is low in amount is low due to their<br />
high volatility and low solubility in water.<br />
• PCBs are absorpt easily by particulate matters so that<br />
PCBs in water are mostly contained on the surface of<br />
suspended particulate matters and finally settle to the<br />
bottom soil. Thus, PCBs in the substrate sludge is 1 to<br />
2 times higher in amount than that in the water around.