3 results match your criteria: "School of Geography and Ocean Science of Nanjing University[Affiliation]"

Article Synopsis
  • Phenol is highly toxic to aquatic life and accumulates in the environment, posing challenges for assessing ecological risks.
  • A new three-stage assessment method revealed that phenol concentrations are generally higher in northern rivers of China, with ecological risks varying by season and river location.
  • Fish are more vulnerable to phenol toxicity than invertebrates, highlighting the need for updated water quality standards and targeted strategies to protect river ecosystems.
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The Tibetan Plateau (TP), once considered a pristine environment, is now facing increased heavy metal pollution due to human activities, causing unprecedented ecological risks to soil organisms. However, little is known about the sensitivity and tolerance of different soil organisms to heavy metal toxicity in the high-altitude areas of the TP under the background of human activity intensity and future risk control priorities. In this study, we conducted an ecological risk assessment and threshold calculation for 10 heavy metals in soil for typical soil organisms, including Cd, Co, Cr, Cu, Ni, Pb, Zn, Mn, Sb, and Sn, using the species sensitivity distribution (SSD) method in the zone between Ranwu town and Renlongba glacier on the TP.

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Article Synopsis
  • Heavy metal contamination in China's shallow lakes, particularly Taihu Lake, poses serious ecological risks, especially concerning aquatic organisms, despite previous focus being mostly on human health.
  • An analysis of seven heavy metals revealed that Cadmium (Cd) presents the highest ecological risks, while Nickel (Ni) and Lead (Pb) show the lowest, indicating varying toxicity among the metals.
  • Human activities significantly influence heavy metal distribution, and current environmental standards for freshwater sediments in North America are inadequate for the conditions in Taihu Lake, highlighting the need for improved regulations in China.
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