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The river water was contaminated with toxic metals including arsenic, copper, barium, cadmium, chromium, lead, mercury, nickel, and thallium. [2] Cleanup costs may exceed $1.2 billion. [3] A toxic heavy metal is a common but misleading term for a metal-like element noted for its potential toxicity. [4]
Rubidium is a chemical element; it has symbol Rb and atomic number 37. It is a very soft, whitish-grey solid in the alkalin metal group, similar to potassium and caesium. [9] Rubidium is the first alkali metal in the group to have a density higher than water.
The plant is poisonous, containing cardiostimulant compounds such as adonidin and aconitic acid. [42] Aesculus hippocastanum: horse-chestnut, buckeye, conker tree Sapindaceae: All parts of the raw plant are poisonous due to saponins and glycosides such as aesculin, causing nausea, muscle twitches, and sometimes paralysis. [43] Agave spp.
This semi-evergreen vining plant invades the edges of forests, streams, and roadsides, smothering vegetation, says Kandra. It blooms in both shade and sun conditions and is most noticeable in late ...
A hyperaccumulator is a plant capable of growing in soil or water with high concentrations of metals, absorbing these metals through their roots, and concentrating extremely high levels of metals in their tissues. [1] [2] The metals are concentrated at levels that are toxic to closely related species not adapted to growing on the metalliferous ...
For the most toxic houseplants, it’s smart to keep them out of reach of pets or out of your home completely, says Dr. Wismer. Ditto for toxic landscape plants; either fence them or don't plant them.
Density criteria range from above 3.5 g/cm 3 to above 7 g/cm 3. [17] Atomic weight definitions can range from greater than sodium (atomic weight 22.98); [17] greater than 40 (excluding s-and f-block metals, hence starting with scandium); [18] or more than 200, i.e. from mercury onwards. [19] Atomic numbers are sometimes capped at 92 . [20]
[30] [31] Natural rubidium is similarly slightly radioactive, with 27.83% being the long-lived radioisotope rubidium-87. [ 10 ] : 74 Caesium-137 , with a half-life of 30.17 years, is one of the two principal medium-lived fission products , along with strontium-90 , which are responsible for most of the radioactivity of spent nuclear fuel after ...