The significant chemical hazards were poisonousmetal elements, pesticide residues, dioxin, forbidden feed additives and antibiotic residues.
化学性的显著危害主要有：重金属、农药残留、二恶英、违禁添加剂、抗生素残留等；
2
It presents the idea that under the non-saturated environment of rock-soil, the poisonousmetal exists chiefly in the form of residual appearance.
本文以大量的实际资料为依据，阐述了毒性金属形态变化与岩土饱水性的关系，提出了在非饱和环境的岩土中。
3
Arsenic is a poisonousmetal that has long been linked to an increased risk of cancers, diabetes, thickening of the skin, diseases of the liver and digestive complications.