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The heavy metal inventory and the ecological risk of the estuarine sediments in Hailing Bay, an important maricultural zone along the southern coast of China, were investigated. Results show that the surface sediments were mainly polluted by As (2.17–20.34mg/kg), Ni (1.37–42.50mg/kg), Cu (1.21–58.84mg/kg) and Zn (11.69–219.22mg/kg). Furthermore, the aquafarming zone was significantly more polluted...
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