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]
Toxic metals can bioaccumulate in the body and in the food chain. [5] Therefore, a common characteristic of toxic metals is the chronic nature of their toxicity. This is particularly notable with radioactive heavy metals such as radium , which imitates calcium to the point of being incorporated into human bone, although similar health ...
Microplastics are fragments that can range from less than 0.2 inch (5 millimeters) or about the size of a pencil eraser, to 1 nanometer. A strand of human hair is about 80,000 nanometers wide ...
Caustic ingestion occurs when someone accidentally or deliberately ingests a caustic or corrosive substance.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.
Lead was used extensively in Roman aqueducts from about 500 BC to 300 AD. [54] Julius Caesar's engineer, Vitruvius, reported, "water is much more wholesome from earthenware pipes than from lead pipes. For it seems to be made injurious by lead, because white lead is produced by it, and this is said to be harmful to the human body."
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
Lead may be found in food when food is grown in soil that is high in lead, airborne lead contaminates the crops, animals eat lead in their diet, or lead enters the food either from what it was stored or cooked in. [287] Ingestion of lead paint and batteries is also a route of exposure for livestock, which can subsequently affect humans. [288]
Blood lead level (BLL), is a measure of the amount of lead in the blood. [1] [2] Lead is a toxic heavy metal and can cause neurological damage, especially among children, at any detectable level. High lead levels cause decreased vitamin D and haemoglobin synthesis as well as anemia, acute central nervous system disorders, and possibly death. [3]