Chapter Diagnosis
Therapy
Elevated concentrations of DDT
Chlorinated hydrocarbons and other
make fish unfit for human contoxic organics in effluents from
sumption and endanger the
industry have to be forbidden. More
survival of sea birds and mammals.
research is necessary to evaluate
the effect of small traces of such
substances in sewage introduced to
the marine system.
4.1
Before the 1960's, large amounts
Dumping of dangerous materials
of dangerous materials were dumped is forbidden, dumping of other
into the sea.
materials should be controlled.
4.2
In several parts of the world large
More research on the effects of these
quantities of wastes from the
wastes upon marine life is necessary.
titanium dioxide pigment industry
are dumped in the sea.
It is difficult to draw conclusions
As it is risky to conclude from
from population studies of organisms laboratory experiments as to effects
living in regions with pollution
in nature, monitoring of natural
stress, because of natural fluctuapopulations of organisms has to be
tions.
continued. Long-term observations
and adequate research strategies
will hopefully give better tools to
distinguish between natural and
pollution-induced fluctuations.
4.3
Dumping of sludge from waste
Sewage sludge could be introduced
water treatment plants into the sea
into the high seas without adverse
results in oxygen depletion and in
effects. In restricted coastal situahigher concentrations of toxic heavy tions dumping should be forbidden.
metals and organic compounds.
4.4
Antifouling paints add to the heavy The invention of nonpersistent
metal pollution and may have
toxic substances for antifouling
adverse effects in restricted bays and paints should be encouraged.
estuaries.
4.5
Garbage from ships is a nuisance.
It should be forbidden that garbage
from ships, except kitchen leftovers,
goes into the sea in coastal areas.
5
Oil is a complex material, and each
Scientific research on oil in the sea
component has a special fate when
is hampered by the different types
spilled on the sea's surface. Many
of oil and the different properties
oil components are either toxic or
oil acquires in the course of weathmay possibly change the pattern of
ering. A standard oil quality for
193
Therapy
Elevated concentrations of DDT
Chlorinated hydrocarbons and other
make fish unfit for human contoxic organics in effluents from
sumption and endanger the
industry have to be forbidden. More
survival of sea birds and mammals.
research is necessary to evaluate
the effect of small traces of such
substances in sewage introduced to
the marine system.
4.1
Before the 1960's, large amounts
Dumping of dangerous materials
of dangerous materials were dumped is forbidden, dumping of other
into the sea.
materials should be controlled.
4.2
In several parts of the world large
More research on the effects of these
quantities of wastes from the
wastes upon marine life is necessary.
titanium dioxide pigment industry
are dumped in the sea.
It is difficult to draw conclusions
As it is risky to conclude from
from population studies of organisms laboratory experiments as to effects
living in regions with pollution
in nature, monitoring of natural
stress, because of natural fluctuapopulations of organisms has to be
tions.
continued. Long-term observations
and adequate research strategies
will hopefully give better tools to
distinguish between natural and
pollution-induced fluctuations.
4.3
Dumping of sludge from waste
Sewage sludge could be introduced
water treatment plants into the sea
into the high seas without adverse
results in oxygen depletion and in
effects. In restricted coastal situahigher concentrations of toxic heavy tions dumping should be forbidden.
metals and organic compounds.
4.4
Antifouling paints add to the heavy The invention of nonpersistent
metal pollution and may have
toxic substances for antifouling
adverse effects in restricted bays and paints should be encouraged.
estuaries.
4.5
Garbage from ships is a nuisance.
It should be forbidden that garbage
from ships, except kitchen leftovers,
goes into the sea in coastal areas.
5
Oil is a complex material, and each
Scientific research on oil in the sea
component has a special fate when
is hampered by the different types
spilled on the sea's surface. Many
of oil and the different properties
oil components are either toxic or
oil acquires in the course of weathmay possibly change the pattern of
ering. A standard oil quality for
193