List The Physical Properties Of Lead In Chemistry

The lead in the environment is formed naturally in the earth’s crust mainly as Lead Sulphide. The main exposure channels of lead entering the environment through atmospheric lead is predominantly from automobile emissions. Other lead exposure routes include lead-acid batteries, paint chips, fertilizers, utilized ammunition, pesticides, and other industrial byproducts. The means of conveying lead from key emission sources is mainly through the air. Concerning the sources of lead in drinking water, normally lead reaches into the residents’ water after it is channeled from their water treatment plant or the wells. To be more precise, the source of lead in people’s water supply largely emanates from their households’ pipes or lead solder from plumbing. The most typical cause of the lead formation is from the corrosion reaction by the lead pipes or solders and the water. The acidity as a result of the low pH, dissolved oxygen, and little mineral contents in the water are main reasons of the corrosion. The lead amounts in the water become high if the water spends a long duration of time stagnated inside the old pipes.

(Campbell, 2016). Two giants in childhood lead poisoning research and advocacy, Dr. Philip Landrigan and Dr. David Bellinger, summarize the adverse effects of lead very completely, yet succinctly: “Lead is a devastating poison. It damages children’s brains, erodes intelligence, diminishes creativity and the ability to weigh consequences and make good decisions, impairs language skills, shortens attention span, and predisposes to hyperactive and aggressive behavior. Lead exposure in early childhood is linked to later increased risk for dyslexia and school failure.”(p. 3).

The author further goes on to explain what is being done about lead poisoning, and finally explaining how to know for sure if a person has lead poisoning and how to have your home tested for lead poisoning. The author pays great attention to detail by providing facts to support the information provided in the article. For example, the author states, "75% of houses and other buildings built before 1978 have lead-based paint. When the paint is in good condition it does not pose a threat. When it chips and peels however, it can make a child very ill" (Heck, Where does lead come from section, para. 1). This article clearly achieves its purpose, which is to inform the public about prevalence of lead and the ongoing risks associated with lead poisoning. This article is not about one specific case of lead poisoning, which is evident because the author talks about the history of lead use and the laws relating to lead use in this country.

The major sources of lead here were gasoline, paint chips and water from old plumbing. After lead was removed from gasoline and paint, blood lead levels (BLL) in children decreased on average from 16 mcg/dL to less than 3 mcg/dL. Residual lead persists in the environment, however. A toxic level is currently defined as 5 mcg/dL. In U.S. children age 1-5, the prevalence of BLLs >10 mcg/dL decreased from 88% to 4.4% between 1976 and 1994 and further dropped to 0.8% by 2010. Yet there are still almost half a million children in the U.S. with levels >5

At the age of just a year old, Reginald Cureton, a Detroit middle schooler, was just a year old, a blood test proved he had four times the level of lead in his blood that was concluded as lead poisoning. His parents were baffled and doctors said it would alter his brain development and hinder his skills as a child. Reginald's elementary school suggested numerous times that he repeat the third grade. This lead his parents to do test him for any mental stagnancies and he was diagnosed with ADHD. Now in middle school, Reginald and his family's fight against lead- exposure is continued and as strong as ever as they are taking extra precautions to reduce his lead exposure in any way possible (Lead-Exposure Problems Spotlighted in Detroit) . Unfortunately

Everyone is susceptible to the dangers of lead contamination; but children are especially at risk. High levels of lead in children can lead to brain and kidney damage and damage to red blood cells. Low levels of lead can also cause problems that are less life-threatening but can be just as devastating, like low IQ, hearing and language impairment, reduced attention span and poor school performance. In adults, exposure to lead can lead to an increased risk for high blood pressure. Pregnant women and their fetuses are extremely vulnerable to lead. In women, lead increases the risk of infertility and miscarriages; in fetuses, lead can cause low birth weight, premature birth and impaired mental and physical development.

There are multiple reasons to expect that a person's lead exposure as a child could affect

Children under six years old are very easily affected to the effects of lead. Even low levels of lead in the blood of children can result in: behavior and learning problems, lower IQ and hyperactivity, slowed growth, hearing Problems and anemia; lead can accumulate in our bodies over time, where it is stored in bones along with calcium. For pregnant women, during pregnancy, lead is released from bones as maternal calcium and is used to help form the bones of the fetus. This is particularly true if a woman does not have enough dietary calcium. Lead can also cross the placental barrier exposing the fetus the lead. So lead can cause serious effects to the mother and her developing fetus, including: reduced growth of the fetus and premature birth. And for other adults, lead can also be harmful, it can cause cardiovascular effects, increased blood pressure and incidence of hypertension, decreased kidney function, and reproductive problems in both men and

Lead is poisonous because once it enters your body it can form into other atoms like zinc and iron fooling the body into thinking they are there and not carrying out the vital functions they need. Lead atoms can also block neurotransmitters. In the 1920s there was essentially a lead "boom" and marketers began putting lead in everything including shoes, lightbulbs, and leaded gasoline, advertising that it was safe and even kid friendly (in some items) when it wasn't. The lead levels in the factories became so bad that the workers were becoming sick, hallucinating, going mad, and dying from being poisoned by lead. Scientist Robert Kehoe was hired by GM to "cover up" the lead threats saying the amount of lead was a naturally occurring. No one cared about the use of leaded gasoline and other leaded materials until Clair Patterson began to dig deeper into the research of lead in the

In the 1950’s and 1960’s, lead poisoning was found to be prevalent in the slums of the inner cities. These areas were referred to as the "lead belt" because these run down houses were havens for lead exposure. The flaking paint on walls, the chipping plaster ceilings, and the old furniture exposed these children to a real hazard. Pica was an important contributing factor and children, ages 1 to 3 were at the greatest risk. Siblings in these situations were often affected and recurrence was common because the lead paint was not removed. The prognosis for these children became worse with each recurrence (Chisholm, 1982).

Learning to understand what causes a lead contamination or lead poisoning creates a need to actually

Chronic lead poisoning in children may cause intellectual disability, seizure disorders, aggressive behavior disorders, developmental regression, chronic abdominal pain, and

Lead, a naturally occurring metal and can be used in almost everything. It can cause serious health issues if it is exposed for a long time, particularly in children as they are more susceptible to absorbing and retaining lead in their bodies. Each year, in the United States 310,000 of 1- to 5-year age group are found to have unsafe levels of lead in their blood, which can cause a wide range of symptoms. (1)

* Lead. Lead is hazardous to health as it accumulates in the body and affects the central nervous system. Children and pregnant women are most at risk.

Moreover, exposure to lead and taking a lot of medication without consulting a doctor may lead to