. brought on by the con-

‘the pollution is not reduced

the pollutants sulphur
_ amd other particles. These

“os

?

Page 16, The Herat, Tuesday, Janvary 20, 198) -

Research so far, most
notably by a joint Canada-

" OTTAWA (CP) — An
invisible killer is creeping

- and fall as a mild acid in
rain or snow.

slowly actoss North —_By itself, acid rain isnot U.S. scientific team, has
America, gradually ster- really - dangerous to yielded only some basic
ilixing lakes, injuring crops humans. Ita corrosive facts about the pollution

and forests and possibly

nature Is the hazard. and preliminary estimates
threatening thousands of

“Drinking it won't ’ of the damage to the en-

lives, corrode your stomach vironment and fisheries |
: Acidrain is that killer,a _—lining,""‘says Peter Toftof from acid rain.

nightmare created by the health depar:ment’s In, eastern North

industrial air pollution. chemical hazards bureau. America, several thousand
Federal authorities are “Vinegar and salad takes and their inhabitants -

moving to fight the en- dressing are far more areslowly dying because of

acidic than what isin those acid raln. Salmom stocks in
lakes." . several Nova Scotia rivers

But health officials‘are are gradually being
assessing the risks to eliminated, Crops in highly
humans from possible acidic areas are being

virommental destruction

taminants spewn into the
air each year in Canada.
They also are working

with the United States changes in drinking water damaged.
government to make sure due to the effect of high Experts are even finding
the same is done there. acidity on metal pipes. thatacidrain ruins new car

finishes. The U.S, Council
oa Environmental Quality
estimates acid rain, which

But scientists fear that {f They alsaare looking at the
incidence of Jung disease

drastically and soon, the andi trying to relate it to

resulting damage may be — airborne pollution. _ acts like road sall as it eats
irreversible, The average rainfall in through paint and metal, is
Acid.rain is a product of some areas of Ontario and responsible’ for half the

corrosion on North Ameri-
can cars.
Governments,

Nova Scotia now 1s about 40
times more acidic than
nermal — an acid content

roughly equal to that of
tomatoes.

dioxide, nitrogen oxides
both

federal and provincial, are
spending a bundle in an

mix with oxygen and water
vapor In the atmosphere

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1978 SUBARU BRAT 4x4

effort to Jearn moro about
the probiem. The federal
government has set aside
about $41 million for re
search on acid rain over
the next four years to stindy
its effects on human health,
fish, forests, wildlife and
crops.

Health department
researchers are mainly
concerned about the effect
on water quality.

High acidity will corrode
metal water pipes and
Fittings, the exterior metal
and stone work and fix-
tures on buildings, and
Jeach possibly toxic metals
from rock and soil into
water used as a source of
drinking water.

“The acidity per se is not

the harmful thing,” said
Toft. ‘It is its capacity to
dissolve lead, mercury and
other metals.’*
. A wide range of such
metals and their maximum
safe limits for drinking
water are contained in a
recent guide set down by
the health department, The
provinces are mainly re-
sponsible for ensuring a
safe and adequate supply
of drinking water.

Toft said scientists are

| checking water quality

closely for a change in
| levels of toxic metal
' contamination.

Computer expert L. D.
Hamilton - from the
Brookhaven Institute in

“New York recently es-.

timated that 50,000
Americans die each year
because of respiratory
disease cause. by air
pollution.

Toft and othe: federal -

scientists suggested earlier

- that proportionately, 5,000

Canadians could die for the
same reasan. .

But -Toft says
preliminary analysis of

_ those figures now show the

are most fearful about the

by Hamilton are not appli:
cable in Canada because
the country is mot, as: ur-
banized as the U.S.

Work compiled mostly by
a joint Canada-U.S.
scientific team has

revealed the. devastating
effects of- acid rain on
Canadian fisheries. .

The ‘simple problem is
that many fish cannot

* tolerate high | acidity. -.

Especlally. sensitive
species include brook trout,
smallmouth bass and
walleye, - :

But fisheries scientists

valuable salmon species,

“particularly the Atlantic

salmon.
The acid has various
effects on the food chain

and changes the fish’

habitat which reduces the

kinds and supply of food for
the fish.
Allan Johnson, a

biologist with the Ontario

some fish species has risen
slightly in areas where the
water is more acidic.

The ministry publishes a

‘ Setalied book booklet advising

anglers about safe fishing
areas and outlining which
fish are more likely to be
contaminated by
chemicals and toxic
metals,

The toxic chemicals
accumulate as they pass
through the food -chain
ending up In fish which can

; " be dangerous to humans.
ministry of environment,
"says lead contamination of

In one area under study,
increasing concentrations
of such poisonous metals as
aluminum and zine are
being feached from the
bottom of a freshwater

. Lake.

- didn't |
. thought that: was the

~ ODD, isn’t it? -

VANCOUVER (CP) —A
man who tried ‘to rob a
credit unién office became
the victim of.a language
holdup and was forced to
flee empty-handed, autho-
Tities say, :

The bandit entered the |

Caisse Populaire St.
Sacrement on Saturday
and passed the teller anote
demanding all the mmey.
The teller, who is Chinese,
couldn’t understand the

- note and asked the'man in

English what he wanted.
“All your money,” the

. bandit replied in -English.

Still baffled by the request,
the teller called to a second
woman teller.” .

' The ‘second woman,
knowing the first teller
speak French,

problem and asked the

“bandit in French what he

wanted,

“All your money,” the
robber replied in French,
with a heavy English ac-
cent. The second teller set
off the holdup alarm: and
called the manager.

The manager came from

his office, read the holdup |
note arid told the robber: “I

don't ‘speak English very - .

“well.”
“Burry, hurry, 1 want all
your money,’ the robber

empty. drawer next-to the

full till and said ail the

money was in the vault.
The bandit left empty-

handed. But a short time

later a.man answering the

- game description handed a

similar note to an English-
speaking teller at another
bank. The teller handed
over $1,200 and the robber
fled.

NEW YORK (AP) —
New Yorkera are not as

_ tude and heartless to
’ people in need of help as

they are generally reputed
tobe, according'to a survey
in New York magazine.

The survey, published in
the magazine's Jan.z6
issue and released Sunday,
was titled, The Good
Samaritan is Alive and
Well and Living in New
York,

-In- one experiment,

| someone pretended he -
_eouldn’t see because he had ©
~ Just had eye drops put in ~
' and asked passers-by lo
. read some directions to a
said in English. The .-
manager pulled open an -

subway station.
Seventy-five percent of
the 1,-200 persons 4ap-

proached did help, the

_ survey said,

NEW YORK (AP) — -

Three alleged muggers
~-were put on ice and took a
trip up the river before
they were even caught,
police say.

‘The three allegedly
robbed an elderly woman
of her purse Sunday at a
park on Manhattan's
northern Up and ran to the
ice on the shoreline. They
soon found themselves
floating away on a chunk of
iee about two metres

square.

They floated north on the
Hudson River for about an
hour until police officers
flew a helicopter to the
rescue, police said.

“Acid rain: The invisible killer on prowl ©

Those results were seen

in one of a series of lakes
located southeast of
Kenore, ‘Ont., where
government scientists have
been doing acid rain ex-
periments since 1976. .

Over the last four years,
scientists have “dumped
three tonnes of sulphuric
acid into one lake.

“That equals the amount

_ (of acidity) the lake would
have received from
precipitation if the lake had
been slitated near Sud-
bury, Ont., for the past 20
years,” says the fisheries

- department,

Other changes noted:

Fathead minnows have

' disappeared, freshwater
shrimp,.a major food for
lake trout, have been wiped
out; and increasing num-
bers of deformed trout
embryo are turning up. .

‘the entire picture, a8
portrayed by the Canada-
US. team in its second
joint scientific report od
acid rain, is no less dismal.

Their informatian
shows:

—A serious loss to
Atlantic salmon fisheries in
Nova Scotia rivers. . For
example, in 1980, only five
native salmon returned to
spawn in the Tusket River.

—Preliminary crop
studies by the U.S. En-
vironmental Protection
Agency ‘showed that leaf
damage -is prominent
among such vegetables as
radish, beets, carrots and
broccoli under high levels
of acid rain.

~The Canadian Forestry
Service suggests that
continuous high levels of
acid rain could hurt
agriculture and forest
areas where soil is poor.
Sugar maple and yellow
birch forests in southern
Quebec appear to be quile
sensitive to acidity and a

' mathematical models used range of air pollutants.

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