But a psychiatrist and Harvard professor, Stuart Grassian, had found that the environment was "strikingly toxic," resulting in hallucinations, paranoia and delusions.
The report says that 50 to 80percentt of electronics waste collected for recycling in the United States is placed on container ships and sent to China, India, Pakistan or other developing countries, where it is reused or recycled under largely unregulated conditions, often with toxic results.
Similar toxic results were observed in the 3-brood reproduction and sub-lethal growth tests.
And at least one group of Chinese soils is approaching the pH values at which aluminum and manganese start leaching into surface water, with potentially toxic results.
Excess manganese (Mn) is potentially toxic resulting in a permanent neurodegenerative disorder, clinically known as "manganism" that is distinctive for hepaticencephalopathy.
A dose of over 450 micrograms can be toxic, resulting in bad breath and body odor.
In this study, at 400 ppm maternal CO exposure, a number of toxic results were noted.
The arsenical melarsoprol is used to treat late stage disease, although it is extremely toxic, resulting in 5 10% mortality due to reactive encephalopathy.
The variety of items associated with dementias suggests that some part of the risk might relate more to aberrant repair processes, than to specifically toxic results.
