Ecology
A branch of science concerned with the interrelationship
of organisms and their environment.
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Ecosystem
An interconnected and symbiotic grouping of animals,
plants, fungi and micro-organisms that sustains life through biological,
geological and chemical activity.
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Emission Controls
Any measure that reduces emissions into air, water or
soil. The most effective emission controls involve the redesign of
the process so less waste is produced at the source. Common emission
controls are wastewater treatment plants, stack scrubbers and in-plant,
solid waste reduction programs.
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Emission Factor
Quantity of a substance or substances released
from a given area or mass of a material at a set point in time; i.e.,
milligrams per square meter per hour.
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Emissions
The release of gases, liquids and/or solids
from any process or industry. Liquid emissions are commonly referred
to as effluents.
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Environmental Footprint
For an industrial setting, this is a company's
environmental impact determined by the amount of depletable raw materials
and nonrenewable resources it consumes to make its products, and the
quantity of wastes and emissions that are generated in the process.
Traditionally, for a company to grow, the footprint had to get larger.
Today, finding ways to reduce the environmental footprint is a priority
for leading companies.
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Environmental Impact
Any change to the environment, whether adverse
or beneficial, wholly or partially resulting from human activity, industry
or natural disasters.
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Environmental Restoration
The act of repairing damage to a site caused
by human activity, industry or natural disasters. The ideal environmental
restoration, though rarely achieved, is to restore the site as closely
as possible to its natural condition before it was disturbed.
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Environmental Tobacco Smoke
Secondhand tobacco smoke exposure.
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Environmentally Preferable Product
Products that have a lesser or reduced effect
on human health and the environment when
compared with competing products that serve
the same purpose. The product comparison may
consider raw materials acquisition, production,
manufacturing, packaging, distribution, reuse,
operation, maintenance, or disposal.
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Environmentally Preferable Purchasing
Environmentally Preferable
Purchasing is a United States federal-wide program
(Executive Order 13101) that encourages and
assists Executive agencies in the purchasing of
Environmentally Preferable Products and services.
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Estuary
A bay or inlet, often at the mouth of a river,
in which large quantities of freshwater and seawater mix together. These
unique habitats are necessary nursery grounds for many marine fishes
and shellfishes
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Etiological
Relating to cause, such as of disease or
disorder.
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ETS
See "Environmental Tobacco
Smoke."
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Exposure
Amount of radiation or pollutant present
in a given environment that represents a potential health threat to
living organisms.
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