Download A Small Dose of Toxicology: The Health Effects of Common by Steven G. Gilbert PDF

By Steven G. Gilbert

Daily, we come into touch with many particularly innocuous components which can, at sure concentrations, be poisonous. this is applicable not just to visible applicants reminiscent of asbestos, lead, and gas, but additionally to compounds reminiscent of caffeine and headache pills. whereas the sector of toxicology has a number of texts dedicated to features of biology, chemistry, and mechanism of motion, the necessity continues to be for a ebook that locations toxicology in the framework of our day-by-day lives. A Small Dose of Toxicology offers the rules of toxicology through exploring the consequences of universal chemical brokers comparable to caffeine, nicotine, and alcohol. It reports the basics of dose-response and elements of person sensitivity in regard to those medications, after which applies this information to environmental contaminates reminiscent of lead, arsenic, insecticides, mercury, and radiation. Chapters speak about neurotoxicology, possibility review, carcinogenicity, and with quite a few particular poisonous brokers, with every one bankruptcy designed as a self-contained module to permit for flexibility within the number of own or educational fabric. Exploring present toxicology issues inside a human context, this article discusses how toxicology impacts our daily lives whereas delivering perception into the wider problems with public healthiness and affliction prevention. Environmental and public future health execs, in addition to beginners and scholars requiring a uncomplicated origin in toxicology will locate this source enormously beneficial.

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Example text

The liver is a remarkable organ but can be permanently damaged by diseases such as hepatitis or through long-term alcohol consumption. Liver damage can be detected in the blood by looking for elevated levels of compounds produced by the liver. Insurance companies use liver function tests to evaluate the possibility of chronic drug consumption. Not all agents can be readily metabolized. The toxic metals lead and mercury are elements that cannot be degraded but must still be removed from the body.

5 mg/kg. 5 mg/kg and six cans of cola a dose of 3 mg/kg of caffeine. 2 as the concentration of the caffeine in the blood. An individual’s response to the caffeine varies with the dose and corresponding amount of circulating caffeine. 2) illustrates the effect of body size on the dose. When the adult and the child receive the same amount of caffeine, the exposure is the same but the dose is dramatically different. 2. The effect of dose and body size on response. For a given body size, the larger dose produces a greater effect (left), and for a given exposure, the smaller body size receives a greater effect and larger dose (right).

If there is no exposure, then there is no risk or possibility of harm. Knowledge and experience allow one to judge the potential for harm or risk associated with exposure to a substance. In this way we are all toxicologists, always judging the potential for harm against the benefit of exposure. This is often easier said than done, but being knowledgeable about an agent can lead to the development of specific strategies to reduce the potential for harm. Since one cannot necessarily foresee all possible exposures to a hazardous substance, choosing less hazardous substances is also a vital part of risk reduction.

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