Keywotrds H Flashcards
Particulate Matter
Matter made of solid particles and liquid droplets in the air.
Montreal Protocol
a global agreement to protect the ozone layer by eliminating ozone-depleting substances
Zooplankton
Small, free-floating aquatic microorganisms.
Allergens
Foreign substances that cause allergies.
Acute Toxicity
The adverse effects of a substance that result either from a single or multiple exposures in a short period of time.
Dead Zones
Areas of water bodies where aquatic life cannot survive because of low oxygen levels.
Coal Ash
Whatever waste is leftover after coal is combusted
Sediment Pollution
Where toxic chemicals can become absorbed into sediment particles and then transported to and deposited in other areas.
Primary Sewage Treatment
A procedure that removes material that will either float or readily settle out via gravity.
Non-Municipal Solid Waste
Waste that is not created by community activities or residential/commercial establishments.
Solid Waste Per Capita
The amount of municipal solid waste produced by the average American.
CERCLA
Provided a Federal “Superfund” to clean up uncontrolled hazardous waste sites as well as other emergency releases contaminants into the environment
stratospheric zone
second layer of the atmosphere
infrared radiation
heat; given off by warm objects
pathogens
a bacterium, virus or microorganism that can cause disease
re-emerging disease
a disease that comes back after a significant decline
ED50
jr
prospective studies
a study that monitor those who may come into contact with harmful chemicals in the future.
oligotrophic
a lake with a small amount of plant life
non-point source pollution
where diffused pollution enters bodies of water rather than specific points.
safe drinking water act
an act passed in 1974 to protect safe drinking water in the US
dematerialization
the reduction of materials used within the production of a product to reduce it’s environmental impact
acid deposition
any form of precipitation with acidic components that fall to the ground in wet or dry forms
positive feedback
accelerates a temperatures rise
infectious agents
organisms that are capable of producing infection or infectious disease
emerging disease
infectious disease that has newly appeared in a population
threshold level
the exposure level or dose of an agent above which toxicity or adverse health effects can occur
retrospective studies
a study that monitors people who have been exposed to an environmental hazard at some time in the past
eutrophication
a natural process that results from accumulation of nutrients in bodies of water
radioactive substances
atoms that decay naturally; produces several types of radiation
point source pollution
type of pollution that comes from a single identifiable source
Clean Water Act
the act governing pollution control and water quality of the nation’s waterways
Pollution Prevention Act
the act that requires industries to reduce pollution at its source
tropospheric ozone
ground level ozone not emitted directly into the air