Search results
Results from the WOW.Com Content Network
It causes almost 10% of intellectual disability of otherwise unknown cause and can result in behavioral problems. [2] Some of the effects are permanent. [2] In severe cases, anemia, seizures, coma, or death may occur. [1] [2] Exposure to lead can occur by contaminated air, water, dust, food, or consumer products. [2]
Additional Se intake can lead to selenosis. [17] Signs and symptoms of selenosis include a garlic odor on the breath, gastrointestinal disorders, hair loss, sloughing of nails, fatigue, irritability, and neurological damage. Zinc toxicity has been seen to occur at ingestion of greater than 225 mg of zinc. [18]
Pica may lead to intoxication in children, which can result in an impairment of both physical and mental development. [5] In addition, it can cause surgical emergencies to address intestinal obstructions, as well as more subtle symptoms such as nutritional deficiencies and parasitosis. [5] Pica has been linked to other mental disorders.
Pencils are commonly used at polling stations instead of pens. This is because ink might run on to different sections of the ballot and obscure the voter’s choice. The Facts
Depending on the nature of the substance, the duration of exposure and other factors it can lead to varying degrees of damage to the oral mucosa, the esophagus, and the lining of the stomach. [ 4 ] The severity of the injury can be determined by endoscopy of the upper digestive tract, although CT scanning may be more useful to determine whether ...
These events often occur without the knowledge of the communities they affect. Common causes of lead poisoning epidemics include mining, lead recycling, and food/water contamination. [1] These events also cause disproportionate childhood fatalities as children are more susceptible to lead poisoning than adults. [1] [2]
A copying pencil, also an indelible pencil or chemical pencil, [1] is a pencil whose lead contains a dye. The lead is fabricated by adding a dry water-soluble permanent dye to powdered graphite —used in standard graphite pencils—before binding the mixture with clay .
Lead can cause severe damage to the brain and kidneys and, ultimately, death. By mimicking calcium, lead can cross the blood–brain barrier. It degrades the myelin sheaths of neurons, reduces their numbers, interferes with neurotransmission routes, and decreases neuronal growth. [265]