Ch. 17 & 21

a heat resistant fibrous mineral that can be woven into fabrics to be used in fire resistant and insulating materials

an increase in the concentration of a chemical in specific organs or tissues at a level higher than would normally be expected

increase in concentration of slowly degradable fat soluble chemicals in organisms at successively higher trophic levels

chemicals, ionizing radiation, and viruses that cause or promote the development of cancer

a state of continuous or recurring contact with toxic substances or radioactive materials over a long period of time

the only air pollutants with national air quality standards that define allowable concentrations of these substances in surrounding air

plot of data showing the effects of various does of a toxic agent on a group of test organisms

substances that cause an allergic reaction

when 50% of the population is affected but not killed by a certain dose of a substance

chemicals that, at certain doses, can interfere with the endocrine (hormone) system in mammals

any solid, liquids, or containerized gas that can catch fire easily, is corrosive to skin tissue or metals, is unstable and can explode or release toxic fumes, or has harmful concentrations of one or more toxic materials that can leach out

wastes produced by mines, factories, etc.

amount of a substance that kills half of the test population

solid materials discarded by homes and businesses in or near urban areas

chemical or form of radiation that causes mutations in the DNA molecules in genes

chemicals that can harm the human nervous system

fields or holes in the ground where garbage is deposited and sometimes covered with soil

contain fire retardant properties and are used in computers; they appear to be endocrine disrupters

identifying, evaluating, and ranking risks and hazards to determine options and make decisions about reducing risks

waste disposal site on land in which waste is spread in thin layers, compacted, and covered with a fresh layer of clay or plastic foam

chemical, ionizing agent, or virus that causes birth defects

the minimum dose of ionizing radiation, a chemical or drug that will produce a detectable degree of any effect

measure of the harmfulness of a substance

organic compounds that exist as gases in the atmosphere and act as pollutants