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paper - thin
sheet of material made
of cellulose
pulp,
derived mainly from
wood, but also from rags
and certain grasses, and
processed into flexible
leaves or rolls. Used
primarily for writing,
printing, drawing,
wrapping, and covering
walls.
paper mills
- mills (factories) that
produce paper from wood
pulp.
paper products
- materials such as
paper and cardboard,
produced from trees.
particulate -
of or relating to minute
discrete particles; a
particulate substance.
particulate
pollution -
pollution made up of
small liquid or solid
particles suspended in
the atmosphere or water
supply.
passive solar
- using or capturing
solar energy
(usually to heat water)
without any external
power.
pelagic species
- fish that live at or
near the water's
surface. Examples of
large pelagic species
include swordfish, tuna,
and many species of
sharks. Small pelagics
include anchovies and
sardines.
pesticides -
chemical agents used to
destroy pests.
plastics -
durable and flexible
synthetic-based
products, some of which
are difficult to recycle
and pose problems with
toxic properties,
especially PVC plastic.
plutonium - a
heavy,
radioactive,
man-made, metallic
element (atomic number
94) used in the
production of
nuclear energy and
the explosion of nuclear
weapons; its most
important isotope is
fissile plutonium-239,
produced by neutron
irradiation of
uranium-238.
PM10 -
particulate matter
less than 10 microns in
diameter.
poison - a
chemical that adversely
affects health by
causing injury, illness,
or death.
polluted runoff
- precipitation that
captures pollution from
agricultural lands,
urban streets, parking
lots and suburban lawns,
and transports it to
rivers, lakes or oceans.
pollution
prevention -
techniques that
eliminate waste prior to
treatment, such as by
changing ingredients in
a chemical reaction.
population -
(1) the whole number of
inhabitants in a
country, region or area;
(2) a set of individuals
having a quality or
characteristic in
common.
post consumer
waste -
waste collected
after the consumer has
used and disposed of it
(e.g., the wrapper from
an eaten candy bar).
power plants -
facilities (plants) that
produce energy.
public health
- the health or physical
well-being of a whole
community.
public land (public
estate) - land owned
in common by all,
represented by the
government (town,
county, state, or
federal).
public
transportation -
various forms of
shared-ride services,
including buses, vans,
trolleys, and subways,
which are intended for
conveying the public.
pulp - raw
material made from trees
used in producing paper
products. |
