APES Human Hazards19
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APES Human Hazards19
The hazards to human health
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Lead Exposure and Toxicity in Shooting Ranges

A look at lead exposure from shooting ranges and some steps that can be taken to reduce exposure and help you to reduce your risk of lead exposure.
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What Is A Toxic Substance? | Learn About Chemicals Around Your House | Pesticides | US EPA

Kids can explore a virtual house to find common household chemicals used in a home and yard and learn health and safety information about them. Site also includes frequently asked questions, test your knowledge and puzzle areas.
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Defintions

Toxic- containing or being poisonous material especially when capable of causing death or serious debilitation

Toxicity- the degree to which a substance can damage a living or non-living organism

What Makes Any Compound Harmful to Humans:

Dose- the dose makes the poison stronger so thus, the bigger the dose, the more poisonous.

Exposure- the longer you are exposed to something creates a bigger threat to your health, so thus the longer you are exposed the more harmful it becomes.

Organisms Size/Age- at a younger age or an old age our immune system isn’t at its best so it’s more sustainable to poison, so thus the younger you are or the older you are the sicker you will become.

Organisms Ability to Detoxify- if your immune system or body is able to detoxify, orphysiologically or medicinally remove the toxic substances from a living organism, in time where there is no permanent damage you will survive. This all depends on your age, size, the exposure, the dose, and the type of poison.

Organisms Sensitivity-the more sensitive the organism is to toxic the quicker it will affect them.

Synergistic Effects- An effect arising between two or more agents, entities, factors, or substances that produces an effect greater than the sum of their individual effects. It is opposite of antagonism

Dose-response Analysis- describes the change in effect on an organism caused by differing levels of exposure (or doses) to a stressor (usually a chemical) after a certain exposure time

Dose-response Curve-

LD50- the( median lethal dose) of a toxin, radiation, or pathogen is the dose required to kill half the members of a tested population after a specified test duration

Poison- substances that cause disturbances to organisms usually by chemical reaction or other activity on the molecular scale, when a sufficient quantity is absorbed by an organism

ED50-(effective dose) that quantity of a drug that will produce the effects for which is was given.

Threshold Does- Lowest amount or exposure level of a toxic substance at which a specified and measurable effect manifests.

Acute Effect- (due to exposure to a harmful substance) on animals or humans, whereby severe symptoms develop rapidly and lead quickly to a health crisis. These symptoms often subside when the exposure stops. See also chronic effect.

Chronic Effect- on animal or human body with symptoms that develop slowly, due to long and continuous exposure to low concentrations of a hazardous substance. Such symptoms do not usually subside when the exposure stops. Opposite of acute effect.

Infection- the colonization of a host organism by parasite species

Disease- an abnormal condition affecting the body of an organism

Pathogen- a microbe or microorganism such as a virus, bacterium, prion, or fungus that causes disease in its animal or plant host

Vector- An organism, such as a mosquito or tick, that carries disease-causing microorganisms from one host to another.

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GW-As: The Toxicity Risk in the Genes « Science Life Blog « University of Chicago Medicine

GW-As: The Toxicity Risk in the Genes « Science Life Blog « University of Chicago Medicine | APES Human Hazards19 | Scoop.it
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