JUNK 17, 1082
Stoves, fireplaces cause pollution
expert
SUMMKR NKRH ASK AN
BY RANDY FRICKK
tturning wood in residential fireplaces and
in wood burning stoves causes indoor as well
as outdoor pollution, according to Richard
Laws, an air pollution expert. Laws is an air
pollution control engineer with the Lincoln
Lancaster County Health Department,
Laws says that a wood-burning stove in a
newer, air-tight home could be unhealthful.
Since stoves starve or dampen the air during
combustion, they will emit harmful gases,
Laws said.
He said carbon monoxide is a common or
derless, colorless gas emitted from wood
burning stoves. He said some aldehydes and
nitrogen oxides are indoor pollutants from
wood-burning stoves.
According to Laws, wood-burning stoves
burn more efficiently and produce more heat
than do fireplaces. However, Laws says fire
places pollute less indoors than do stoves. He
said that fireplaces use more air and burn
cooler than stoves.
Laws said that wood smoke coming from
chimneys has many pollutants. He identified
these as hydrochloric acid, benzolate pyrene
(an ingredient of cigarette smoke), sulfur
oxides and polycyclic organic compounds. He
said the polycyclic compounds cause cancer.
Laws points to an Associated Press news
article in his file which makes a statistical
comparison of wood stoves versus oil fur
naces: "A modern wood stove produces 500
times as much carbon monoxide, 1,500 times
as much particulate matter and 750 times as
many hydrocarbons as an oil furnace to heat
the same space, according to a 1980 study at
Long Island's Brookhaven National Laborato
ry." Laws mentioned that chimney fires usu
ally result from the lack of regular cleaning.
Mushroom, fairy ring
problems for lawns
The time of the year and the wet weather
have combined to contribute to two unsightly
problems for lawns mushrooms and fairy
ring.
John E. Watkins, extension plant patholo
gist for the University of Nebraska, has tips
for those wishing to rid their lawns of the
pests.
Mushrooms, which grow from a under
ground network of fungus threads and feed on
decaying organic matter, pose a potential
hazard to children and pets. Certain species
are poisonous and some omit offensive odors.
Control of mushroom growth is impossible
until the substance upon which the mush
rooms are feeding is either decayed or dug
up, Watkins said.
Fairy ring is formed by an underground
network of fungus threads that make a dark
green circular band of grass four to 12 inches
wide, the grass in the center of the ring dead
or dying.
Pumping water into the center of the ring .
with a root feeder helps promote turf recov
ery. Elimination of the ring requires treat
ment by someone experienced in soil treat
ment, Watkins said.
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Ifardwoods such as hickory, oak, ash and
elm are better than softwoods for fireplaces
and stoves, Laws said. They are more com
pact and burn more efficiently than do soft
woods, and give off fewer pollutants. Soft
woods such as pine, fir and cedar produce
more emissions and more smoke, according
to Laws. Smoke from softwoods give off
resins and creosote, which line the walls of
chimneys and smokestacks. Laws said that
this is the material that catches fire.
Laws said Lincoln does not have a serious
pollution problem yet, based on preliminary
results of a survey conducted in the Colonial
Hills subdivision. The survey showed that the
wood burning in that subdivision was largely
recreational, not a main heat source. The sur
vey was conducted in April, chiefly to gauge
the amount of wood being burned. Laws said
that Colonial Hills has about 855 fireplaces,
according to an informal count. Sixty-two of
those homes were surveyed in this area.
Laws said that his office investigates
smoke pollution complaints. In 1980, Laws
Old UN-L computer system turned off
After 14 years of service, Dr. Don Nelson,
professor of electrical engineering and com
puter science, turned off the IBM 360-65 com
puter system.
The computer system was wearing out,
said Ernest Kovaly, computing services di
rector. It was breaking down repeatedly,
Kovaly said. The system used considerable
power and air conditioning to operate, Kovaly
said.
Use of the systems has increased 57 per
cent during the past two years, Kovaly said,
and he expects the use to continue to in
crease. "It has served the University well," Kovaly
said.
The computer system will sell for between
$10,000 and $15,000 for the metals, Kovaly said.
The system on May 13, was switched over
to a MP IBM 370-158, which can support 256
terminals. The new system increased reliabil
ity and within the number of dollars available.
Kovaly said. Computing services received $1.4
million from the legislature to pay bills and
pay for the new computer system, Kovaly
said.
The 370-158 computer system is in Ne
braska Hall. Terminals connected to the com
puter are in Ferguson Hall, College of Busi
ness Administration, Bancroft Hall, Nebraska
Hall, and Miller Hall on Kast Campus. The
computer is used by students and the admin
istration for assignments.
David City couple
gives school $3,000
Three thousand dollars has been given to
the Shcool of Journalism at the University of
Nebraska-Lincoln to enrich the quality of the
school's program, said Neal Copple, dean of
the school. The money was donated by Jack
and Betty Tarr of David City. Tarr publishes
the David City Banner-Press.
said, his office had nine complaints. The num
ber of complaints dropped in 1981 because of
the mild winter, he said.
Laws said that other parts of Lincoln may
have more serious wood burners, but surveys
have not been conducted in those areas.
Laws said that the Environmental Protec
tion Agency is now developing a new air qual
ity standard called "inhalable particulate." If
KPA adopts this standard, t.s office must
take air samples, he said.
Man's robbery story
admittedly was hoax
A man who reported that someone at
tempted to rob him a week ago told Lincoln
police this week that the story was a hoax.
The man reported on Wednesday, June 9,
that he was walking on 11th Street between L
and K streets when a Mexican male ap
proached him, said Lt. Lyle Roberts, Lincoln
police public affairs officer.
The man told police that the robber
showed a knife and demanded money, Rob
erts said. The man said he kicked the robber
in the chest, which knocked the robber down,
then he hit the robber twice in the face, Rob
erts said.
The man said the robber then ran south on
11th Street, Roberts said.
The man was late getting home and
needed an alibi to give to his wife, Roberts
said.
The county attorney's office is considering
charges against the man for filing a false re
port, Roberts said.
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