Levels of poisoning (Toxicity Degree) of chemicals depending on the properties of these chemicals and the effect on the human body. Hence the notion of “poisoning” includes two aspects: the influence of quantitative and qualitative impact.
Quantitatively is: How many (doses) of chemical substances that have been signed or are exposed to the human body and the extent of influence of the chemical, which is expressed in weight of the chemical unity of human body weight. (more…)
U.S. researchers reported they found new links between pesticides and Parkinson’s disease, although they said they only found an increased risk in people using these chemicals as part of their work.
Three compounds-an ingredient in the herbicide Agent Orange, the herbicide paraquat and the insecticide permethrin, were related to more than triple the risk of developing Parkinson’s disease, researchers found.
The study, published in Archives of Neurology, supports the growing evidence linking the incurable brain condition and usually lethal pesticides and herbicides.
“Because little research has identified specific pesticides, we studied eight pesticides with high potential for neurotoxicity as laboratory results,” said team Dr. Caroline Tanner of the Parkinson Institute in Sunnyvale, California.