Toxicology Essays

Name: Chan Hiu Ching Student ID: 4020618 Plastic Paradise: The Great Pacific Garbage Patch is a documentary directed by Angela Sun in 2014. This spectacular documentary is about the devastating drawbacks of plastic production and offers a glimpse of garbage island in the North Pacific. Near the beginning of the documentary, the director interviews some citizens at a beach and finds out they do not realize the extent of the problem. In order to investigate the problem

Poison or toxin was first discovered during ancient times by tribes and civilizations as a way to quicken the death of their prey. As time passed, these methods became more advanced. Weaponry was designed specifically for poison enhancement. In times like the Romans, poisons were used as assassination techniques. These facts have been proved through archaeological findings. Grooves for storing or holding poisons such as tubocurarine have been plainly found in their hunting weapons and tools, showing

In the film, The Poisoner's Handbook, director Rob Rapley tells a tale of several poisoning cases that happened during the 1920s. Throughout this documentary, Rapley analyzes two well-known men who have an impact on the field of forensic science; toxicologist, Alexander Gettler and medical examiner, Charles Norris. Both, Alexander Gettler and Charles Norris went to great lengths in their profession to make a difference in criminal investigations and forensics. In addition to Gettler and Norris,

Today, areas in many regions of the world face serious problems caused by the contamina- tion of the environment with heavy metals, frequently caused by industrial activities and sewage sludge application [10]. One of these metals is chromium. It exists in different oxidation states in the environment, with trivalent and hexavalent chromium being the most stable and abundant forms in soils [10]. Because of its widespread use combined with a high human toxicity, Cr(VI) is considered as a major pollutant

Lead exposure takes place as soon as lead dust or fumes are breathe in, or once lead is ingested. Lead entering the respiratory and digestive systems is released to the blood and dispersed throughout the body. Additionally, more than 90% of the entire body encumbrance of lead is accumulated in the bones, where it is stored. Lead in bones may be released into the blood, re-exposing organ systems long after the original exposure. The toxic nature of lead is well documented. Lead affects all organs

The toxic effects of lead vary greatly, manifesting as the potential fatal encephalopathy of acute lead poisoning or as subtle changes in neurocognitive function in low level exposure. As exposure progresses, symptoms may manifest differently [30]. Brain damage is common in high exposure (blood levels above 100-120 μg/dL for adults and 80 -100μg/dL in children, causing encephalopathy and can also be fetal or permanently disabling resulting in dementia [31,32] Chronic exposure to high lead concentration

Franz Kafka, a novelist, once stated that, "A book is an ax for the frozen sea within." The quote compares the human condition to that of a frozen sea, and literature as the axe that breaks through and unlocks it. Literature is something that should cause individuals to learn more about themselves through books that express strong messages about humanity. Powerful messages that the reader recognizes are messages that invoke thinking from the reader, otherwise it would be impact less. This is why

Lead poisoning occurs when lead is ingested into the body. You cannot smell or taste lead nor is it visible to the naked eye. Lead is a metal that can harm children and adults when it gets into their bodies. Lead can be found in dust, air, water, soil, and in some products used in and around our homes. The build up of lead over a period of months or years causes fatal lead poisoning. While treatment is available for lead poisoning, taking precautions can help protect yourself and your family. As

Lead Poisoning The way lead poisoning had widely spread is due to the lack of care that a lot of companies have stopped watching for in their lead based paints and how it is affecting kids. The reason why this poses such an issue is because there are a lot of different toy products that have lead based paint. As documented in several different sources there are many people that are complaining to these companies, such as the Mattel Toy Company that is getting sued for many of their products because

drugs, this calls for the forensic toxicologist to begin an investigation. Forensic toxicology is examining poisons, drugs, and their metabolites that may have legal ramifications (Fenton & Bell, 2014, p. 256). Forensic toxicology is beneficial to forensic science by identifying the toxins that are present in a victim, the location to obtain the samples, and the amount of drugs that caused the death. Forensic toxicology is used for postmortem drug testing to determine whether drugs are present in the

Forensic Toxicology As in various popular crime shows, one of the key aspects in these shows is forensic science. Since there are a multitude of forensic science fields, one in particular involves drug analysis in a legal setting. This type of forensic science is called forensic toxicology. While most of what the crime shows interpret as forensic toxicology isn’t accurate, forensic toxicology is an essential part in a majority of criminal investigations. In terms of the definition of toxicology, it

science is the application of scientific principles and techniques to matters of criminal justice especially as relating to the collection, examination, and analysis of physical evidence. It includes many branches, one of which is forensic toxicology. Forensic toxicology dates back all the way to France in the 1800s. Mathieu Orfilia was a Spanish born toxicologist who changed how murders were investigated during the 1840 Marie Lafarge case. Creating new techniques and refining existing ones, he was able

it because there was no way of knowing that the person was poisoned. Thanks to new methods of arsenic testing Marie Lafarge was the first person to be convicted of murder. It wasn’t until then that forensic toxicology was thought of. Forensic toxicology refers to the application of toxicology to cases and issues where those adverse effects have administrative or medicolegal consequences. (ForensicScienceSimplified.org). The task

Throughout the multiple times I had been asked what I wanted to do with my life or what kind of career I wanted to go into, there was always a different answer as I was always weighing out my options and multiple interests. I did not like the idea of being stuck doing one job for the rest of my life and by the time I started looking into colleges, I knew the only field I would feel content being in was the forensic science field as I had taken a forensic class in high school and was genuinely interested

over are, Finger print DNA and Forensic toxicology. These two are very similar, but made substantial differences in the evidence in his case. John Wayne Gacy was a murderer from Chicago, Illinois. convicted of the rape and murder of thirty-three boys and young men. he's additionally called the Killer Clown, thanks to his enjoyment of fun youngsters in a clown outfit. In Gregorian calendar month 1978, a 15-year-old boy named Robert Priest went missing.

convincing themselves that Diane was not “the kind of person” and there was no way she could have possibly been on drugs while driving and that it had to be a “medical” explanation for Diane’s actions and that she was a “good mother”. Even when the toxicology tests conducted by the medical examiner revealed that Diane was heavily intoxicated with both alcohol and

Animal testing and animal experimentation is an ancient practice. In ancient times, animal testing was the only way to test the safety of medicines. With the advance technology we have today there are more accurate and humane methods to test the safety of products and drugs. Yet, the FDA, which is responsible for guaranteeing the safety of drugs and products, only requires products to go through animal testing. Every year there are products and drugs that pass the FDA’s animal testing and go to the

manufacture of refractories, graphite electrodes, aluminum and mothballs. Humans can also be exposed to naphthalene from a cigarette smoke. Naphthalene had long been considered a non-carcinogenic compound, however, in the year 2000, the US National Toxicology Program discovered an evidence of the carcinogenic activity of naphthalene. Since then, many international agencies have added naphthalene to the list of potential human carcinogens (Preuss, Angerer, & Drexler, 2003). There are various adverse

relationship in the last few months of her life undoubtedly contributed to her emotional state. While this evidence suggests suicide as a possibility, lingering questions about the circumstances continue. The official cause of death, as listed in the toxicology report, was acute barbiturate poisoning. However, certain details have caused speculation. Reports suggest a significant delay in discovering Monroe's body, potentially affecting the presence of pills in her stomach. Milo Speriglio, director of

various processes. Several alternative methods, which were scientifically validated and accepted by competent regulatory bodies, can be utilized for regulatory toxicology purposes, thus reducing or plenarily replacing living animals in toxicology experimentation. The acceptance of the alternative methods as valuable tools of modern toxicology has been recognized by regulators, including OECD, FDA and EPA.(Interdiscip Toxicol. 2011 Sep; 4(3):