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46 Cards in this Set
- Front
- Back
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E waste
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electronic waste
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zero waste
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everything is recycled
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integrated waste management
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waste management alternatives including: reduce, reuse, recycle
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waste stream
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Aggregate flow of waste material from generation to treatment to final disposition.
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composting
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allowing organic materials to biodegrade
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incineration
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burning trash
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leachate
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when water percolates through trash. Mineralized, bacteria harboring liquid
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environmental justice
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study of social issues in siting of waste facilities, chemical plants...
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hazardous waste
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dangerous chemicals produced
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biopersistance
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a measure of how long a particular material will remain in the atmosphere
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resource conservation and recovery act
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identifies hazardous waste and its life cycles
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CERCLA
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procedures for disposing of hazardous substances
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hormonally active agents
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pops that cause developmental/reproductive problems
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toxic
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material that are poisonous to living things
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carcinogen
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type of toxin that increases risk of cancer
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mutagen
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chemical agent that changes the genetic material
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teratogen
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substance that interferes with fetus leads to birth defects
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allergen
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substance that can cause an allergy
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synergism
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interaction between substances amplifies their combined effect
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synthetic organic compounds
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used in pest control, pharmaceutical
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organic compounds
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carbon based, produced by living organisms
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persistent organic pollutants
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synthetic compounds, toxic and polluting. stable
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body burden
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content of toxic heavy metals in human bodies
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methylation
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bacteria change organic mercury into methyl-mercury (more toxic)
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LD-50
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dose at which 50% of the population dies from
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ED-50
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causes an effect in 50% of observed subjects
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TD-50
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does that is toxic to 50% of the population
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threshold effect
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below no effects occur. Above effects occur
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ecological gradient
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changes in vegetation with distance from a toxic source define it
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behavioral tolerance
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results from changes in behavior
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physiological tolerance
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body adjusts to tolerate a higher level of a pollutant
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genetic tolerance
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some individuals are naturally more resistant to a pollutant than others
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detoxification
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to make less toxic
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bioremediation
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use of micro-organism metabolism to remove pollutants
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phytoremediation
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use of plants to reduce contamination
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acute events
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takes place soon after exposure
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chronic event
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takes place over a long time period.
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biomagnification
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the increase of a substance in living tissue as it moves up a food web
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ore deposits
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high concentrations of metals in geologic processes
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evaporates
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deposits originating by evaporation
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brines
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liquids derived from wells, springs, sea.
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weathering
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chemical/mechanical decomposition of rock
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mineral resource
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concentrated elements/compounds that are extractable
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mineral reserve
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portion of resource that can be legally/economically extracted at time of evaluation
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reclamation
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reusing resources
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R to C ratio
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measure of time availability for finding the solutions to depletion of non-renewable resources. R is known reserves. C is rate of consumption
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