Search results
Results From The WOW.Com Content Network
In these lawsuits, welders have accused the manufacturers of failing to provide adequate warning that their products could cause welding fumes to contain dangerously high manganese concentrations that could lead welders to develop manganism. Companies employing welders are also being sued, for what colloquially is known as "welders' disease."
The concentration of nickel, manganese and cobalt measured on the surface of the soil is hundreds to thousands of times as much as the levels in the surface soil prior to the fire or compared with ...
High iron content nodules appear a red or brown color, while high manganese content appears black or grey. [2] The dominant metal oxide is related to the elements enriched in the nodule. In manganese-dominated nodules, enriched elements include barium , strontium , nickel , cobalt , copper , cadmium , lead , and zinc . [ 2 ]
Manganese is a silvery-gray metal that resembles iron. It is hard and very brittle, difficult to fuse, but easy to oxidize. [11] Manganese and its common ions are paramagnetic. [12] Manganese tarnishes slowly in air and oxidizes ("rusts") like iron in water containing dissolved oxygen. [13]
The CDC says high levels of manganese exposure can irritate the lungs, cause behavioral changes, induce neural and reproductive harm, and damage children’s brains and development.
Elevated levels could cause health concerns for infants, elderly and people with liver disease. "Manganese is the most common mineral on the planet. So, it could be coming from anywhere," William ...
Many acid rock discharges also contain elevated levels of potentially toxic metals, especially nickel and copper with lower levels of a range of trace and semi-metal ions such as lead, arsenic, aluminium, and manganese. The elevated levels of heavy metals can only be dissolved in waters that have a low pH, as is found in the acidic waters ...
Nearly 1.9 million Fiji water bottles have been recalled due to testing positive for high levels of manganese, a mineral the body needs to stay healthy but that can be toxic in high levels.