Chapter 8 - Toxicology and Movement of Toxins in Environmental Health
This chapter delves into the measurement and evaluation of toxicity in environmental health, including the movement and distribution of toxins. The risks associated with exposure to toxins
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Slide1Chapter 8:Environmental Health
Slide3EnvironmentalHealth 8.1 Toxicology 8.2 Movement / Distribution Toxins Measuring Toxicity Take a Risk $ 200 $ 200 $200 $200 $ 200 $400 $400 $ 400 $400 $ 400 $600 $ 600 $600 $ 600 $ 600 $800 $ 800 $800 $ 800 $ 800 $ 1000 $1000 $ 1000 $ 1000 $ 1000
Slide4$200 Environmental HealthThe complete physical, mental, social and spiritual well being.
Slide5$400 Environmental HealthAn abnormal change in individual’s condition that impairs its functions is called: A. Teratogen C. Disease B. Pathogen D. mutagen
Slide6$600 Env HealthWho are three agencies who enforce laws and take action about the world’s environmental health?
Slide7$800 Environmental HealthViruses, bacteria, mosquitoes are considered________ & are able to spread disease rapidly.
Slide8$1000 Environmental HealthHealthy agencies, such as who, calculate the total cost of the disease or illness by combining premature deaths & loss of a healthy lifestyle resulting from illness or disease is called…”What is _____________?”
Slide9$200 ToxicologyTeratogens induce abnormalities in which of the following cells types: A. Germ D. Skin B. Embryonic C. Somatic
Slide10$400 ToxicologyThese cells change the body’s hormonal chemistry, which affects our development, our behavior and our physiology.
Slide11$600 Toxicology The study of poisons and their effect on our living systems is called: A. Pathology B. Epidemiology C. Toxicology D. Biology
Slide12$800 ToxicologyAllergens are substances that A. repress the immune system. B. stimulate the nervous system. C. prevent oxygen uptake. D. activate the immune system. E. interfere with oxygen uptake.
Slide13$1000 Toxicologya. What is sick building syndrome? b. Name 3 substances which contribute to ‘sick building syndrome’. c. Give an example of a health condition caused by sick building syndrome.
Slide14$200 Movement, Distr &Fate of Toxins When one mixes a solute in a solvent, this is called…?
Slide15$400 Movement, Distr &Fate of Toxins Name 3 ways that “toxins” enter into an organism.
Slide16$600 Movement, Distrib &Fate of Toxins Used as flame retardants in textiles, foam in upholstery and plastic in computers and appliances. A. PFOA B. PCB’s C. PBDEs D. Phtalates
Slide17$800 Movement, Distrib &Fate of Toxins Found in cosmetics, deodorants and many soft plastics such as poly vinyl chloride used for food packaging, children’s toys and medical devices. Causes kidney & liver damage, some cancers and endrocrine disruptors.
Slide18$1000 Movement, Distr &Fate of Toxins A prime plastics ingredients found in water bottles, baby bottles, tooth protecting sealants. Causes abnormal chromosomal #’s, mental retardation, miscarriages and may alter sexual development in both males & females.
Slide19$200 Measuring ToxicityHighly persistent organic pollutants are toxic because…?
Slide20$400 Measuring Toxicity What is occurring in this graph?
Slide21$600 Measuring Toxicity An LD50 is a dose of a toxic chemical that A. is an acceptable level of risk for most individuals. B. all individuals react to. C. kills individuals 50 years old and over. D. is 50 times less than the minimal dose. E. kills half of the population.
Slide22$800 Measuring ToxicityDetection of toxic chemicals depends upon A. how many chemicals are present. B. how many individuals respond to them at a certain dosage. C. the sensitivity of measuring techniques and how many chemicals are present. D. whether or not individuals or groups of individuals are sensitive to them.
Slide23$1000 Measuring ToxicityDescribe how synergeistic effects with another chemical can problems with understanding a threshold value for PCB’s exposure.
Slide24$200 Take A riskExplain why eating larger predatory fish such as tuna and sea bass, than from eating small non-predatory fish.
Slide25$400 Take a RiskThe harm caused by the hazard increases as the amount of hazard entering the body (dose) increases. What is a______________
Slide26$600 Take a RiskThe scientific process of estimating the threat of particular chemicals which have an effect upon human health.
Slide27$800 Take A RiskSets priorities and evaluates relevant factors to make regulatory decisions. a. What is this called? b. Which agency assists with this effort?
Slide28$1000 Take a RiskName 2 chemicals from the POP list and explain their sources.