HEAVY METAL POISONING

They define heavy metals, those metals with higher atomic number than that of the iron (55) with a density’ very high and are a common cause of pollution and toxicity’ in biological organisms.
In the scientific literature are normally considered heavy metals the following elements: aluminum, iron, silver, bario, beryllium, cadmium, cobalt, chrome, manganese, mercury, molybdenum, nickel, lead, copper, pond, titanium, thallium, vanadium, zinc, and some metals with properties’ similar to those of heavy metals, such as arsenic, The bismuth and selenium. Among the heavy metals are distinguished the essential metal for living organisms, potential toxicity ', that means: iron, cobalt, chrome, copper, manganese, molybdenum, selenium, zinc; by predominantly considered toxic metals: aluminum, arsenic, beryllium, cadmium, mercury, nickel and lead. When it comes to heavy metal pollution, usually it refers only to some of these elements, chiefly responsible for the environmental damage, namely: mercury, cadmium,chromium and lead.

Heavy metals are natural components of the earth's crust which are not degraded GENERATED BY’ biological and photochemical so I can not be disposed of, if released into the environment can remain there for hundreds of years. Certain natural phenomena such as volcanic eruptions, forest fires and the tides contribute to the natural cycling of metals, man but’ plays an equally important role and sometimes greater than that of nature. He has managed to increase emissions of some magnitude. Heavy metals can enter our body through the water , the air , and the food; some of these elements are part of our body and are: copper, selenium, zinc.

They are essential for maintaining proper metabolism, However, at higher concentrations become toxic. Considering that in the exhalations from the mouth of the people who have four dental fillings with mercury amalgam there is a percentage of mercury vapor above the permitted ceiling for industrial workers , if they can’ deduce that the 'pollution of our environment ensures that everyone is more’ or less intoxicated by excessive accumulations of heavy metals.
Among the various pollutants , heavy metals are the compounds most’ harmful ,It binds with the cell structures in which they settle,hindering the performance of certain vital functions. The sulfidrici groups (SH) , normally present in the enzymes that control the speed of the metabolic reactions in the human body, easily bind to heavy metals, the metal-sulfur complex resulting affects everything the enzyme that can not’ function normally losing its functionality’ catalyst.
The elimination of these metals occurs only in a minimum part, for salivation, transpiration, feeding time , leading to bioaccumulation ie an increase in the concentration of a chemical in a biological organism over time, compared to the concentration of the chemical in the product. Compounds accumulate in living things any time they are taken up and stored more’ faster than they are broken down (metabolized) or espulsi.I metals are concentrated, damaging, in particular in some organs: brain, liver and kidneys and bone, and are often an aggravating factor or determinative of many chronic diseases. The children are the most’ from a lead exposure risk, mercury and other toxic agents, since per unit’ of weight, eat, drink and breathe three to four times more’ of adults. The metals are introduced in aquatic systems as a result of erosion of soil and rock and different activities’ Human ranging from mining to the use of lead pipes for drinking water.

What damages and metals of interest?

Aluminum: Damage to the central nervous system, dementia, memory loss
Antimony : cardiac Damage, diarrhea, He retched, stomach ulcer
Arsenic : lymphatic cancer, liver cancer, Skin cancer
Bario : Increased blood pressure, paralysis
Bismuth : Dermatitis, stomatitis ulcerosa, diarrhea
Cadmium : Diarrhea, stomach pains, He retched, bone fractures, danni immune, psychological disorders
Chrome : Damage to the kidneys and liver, breathing problems, lung cancer, death
Copper : Irritations of the nose, mouth and eyes, liver cirrhosis, brain damage and kidney
Gallio : Throat irritation, difficulty’ respiratory, pain in the chest
Afnio : Eye irritation, skin and mucous membranes
Indio : Damage to the heart, kidney and liver
Iridio : Eye irritation and digestive tract
Lantanio : lung cancer, liver damage.
Lead : Fruit, vegetable, meat, cereals, came, cigarettes contain. Cause brain damage, dysfunctions birth, kidney damage, difficulty’ learning, destruction of
nervous system
Manganese : Blood clotting, glucose intolerance, skeletal disorders
Mercury : Destruction of the nervous system, brain damage, DNA damage
Nickel : Pulmonary embolism, difficulty’ respiratory, asthma and chronic bronchitis, allergic skin reaction
Palladio : Very toxic and carcinogenic, irritant
Platinum : DNA Alterations, cancer, all'Äôintestino and kidney damage
He was born : Spots on Skin, potentially toxic and carcinogenic
Rutenio : Very toxic and carcinogenic, bone damage
Scandium : Pulmonary embolism, threatens the liver when accumulated in the body
Silver : Used as a coloring E174, migraine, difficulty’ respiratory, Skin allergies, highly concentrated due to coma and death
Strontium : Lung cancer, difficulties in children’ of bone development
Tantalum : Eye irritation, and skin, lesion of the upper respiratory tract
Thallium : Used as rat poison, stomach damage, the nervous system, coma and death, for who survives Thallium remain nerve damage and paralysis
Pond : Irritation to the eyes and skin, migraine, stomach pains, difficulty’ urinary ad
Tungsten : Damage to the mucous membranes and the membranes, eye irritation
Vanadium : cardiac and cardiovascular disorders, inflammation of the stomach and intestines
Yttrium : very toxic, lung cancer, pulmonary embolism, liver damage

THE SYMPTOMS intoxication from heavy metals will vary depending on the nature and the amount of heavy metal ingested. Patients may complain:
nausea
He retched
diarrhea
stomach ache
headache
metallic taste in the mouth

Depending on the metal, They may appear blue-black lines in gingival tissues. In severe cases of heavy metal poisoning patients may have compromised:
cognitive
motor
language

THE DIAGNOSIS of poisoning by heavy metals can be done via a series of tests such as:
blood tests
Urine tests
Hair test
tissue analysis
THERAPY X-rays to poisoning of this type is the chelation therapy. With such therapy a chelating agent is orally inserted, intramuscularly or intravenously. The three most common chelating agents are calcium disodium edetate, dimercaprol and penicillamine.
The chelating agent surrounds and binds to the metal in the tissues of the body forming a complex that is filtered from the blood and kidneys and, subsequently, It is excreted in the urine.

PREVENTION: it is not easy but you can avoid choosing environments, controlled food. If we eat such fish, the less polluted are the smaller and younger who have accumulated less mercury in their lifetime, eg….