OPPapers.com Essay Index >> Science >> Lead-Teratogen
We have many free term papers and essays on Lead-Teratogen. We also have a wide variety of research papers and book reports available to you for free. You can browse our collection of term papers or use our search engine.
Lead-Teratogen. Teratogens-Lead Originally, I chose Progestin for this paper. After
a week of research, I got nowhere. I decided to go with lead. ...
... The bottom line is; the more exposure the fetus has to the teratogen, the amount ...
the possible exposure to several teratogens at the same time, all lead to a ...
... fetus (some say conception to birth, but it depend on the type of teratogen and
amount ... Severe exposure may lead to a lifelong struggle for the baby born with a ...
... The type or severity of abnormalities caused by a teratogen is linked to the genotype
of the ... An overweight mother during pregnancy can also lead to risks. ...
... Health effects: Carcinogen (animal); teratogen; can cause damage to liver, kidneys,
lungs and blood (anaemia). www.oecd.org Lead Major emission sources ...
Submitted by happy97ems on February 14, 2006
Category: Science
Words: 781 | Pages: 4
Views: 393
Popularity Rank: 24,702
Average Member Grade: N/A (Add a Comment / Grade this Paper)
Teratogens-Lead
Originally, I chose Progestin for this paper. After a week of research, I got nowhere. I decided to go with lead. I knew that several years ago, the government banned the use of lead in paint, but I did not know why. I thought it would be interesting to find out.
Lead is a very common mineral. It can be found in water, ammunition, gasoline, pipes, old paint, batteries, electronics, automobiles, fishing weights, pottery, pesticides, flood waters, and medications. "Because lead is found in many places in our environment, most people have small amounts of lead in their blood" (OTIS, 2005). Lead can be ingested, inhaled, or absorbed through the skin. In adults, blood lead levels above
25ug/dl (micrograms of lead per deciliter of blood) can cause an increase in blood pressure, stomachaches, tiredness, and hearing problems. People with much higher blood lead levels can have permanent nerve damage, a decrease in blood production, male infertility, or even brain damage. Some studies have shown a correlation between lead and an increased risk of cancer. It is important to keep blood lead levels as low as possible.
Lead can be passed on to a child at and beyond the 12th week of pregnancy.
Prenatally, a child can be affected if the mother's blood lead level is as low as 10ug/dl.
"The amount of lead in the blood of the mother and baby are almost the same" (OTIS, 2005). The higher the level of lead a fetus is exposed to, the more at risk they are. Small amounts of lead exposed prenatal have been linked to delayed mental development. According to teratology.org, "Lead significantly impairs the timing of cell-cell connections during neurological development". This affects memory. However, according to Rathus (2006), children with mental development delays at ages 1-2 due to exposure to elevated levels of lead prenatally were able to improve their levels of cognitive functioning by age 6...
You must Login to view the entire paper.
If you are not a member yet, Sign Up for free!