Research Progress on Biological Effect of Endosulfan Evaluation of the effects of ecological remediation on the water quality and biological toxicity of Dagu Drainage River in Tianjin Dynamic accumulation of chromium in Alisma orientale and its effect on growth of Alisma orientale under nitrogen-chromium coupling Dynamic accumulation of chromium in Alisma orientale and its effect on growth of Alisma orientale under nitrogen-chromium coupling Arsenic speciation in edible plants: A review.