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Mega*Uut Tech
Soil Pollution
Soil contamination is
a state in which man-made chemicals in and alter the natural soil
environment. When a substance is
hazardous / toxic has polluted the soil surface, so it can evaporate, and the
rain washed away or into the ground. Pollution that goes into the ground and
then terendap as toxic chemicals in the soil. Toxic substances in the soil can
have a direct impact to humans when in contact or can contaminate ground water
and the air above it. The Sources of soil pollution is :
1.
leakage
of liquid waste or industrial chemicals or commercial facilities
2.
uses
pesticides contaminated surface water ingress into the sub-surface layer
3.
oil
transport vehicle accidents, chemical substances, or waste, water waste from
landfills
4.
industrial
waste water directly discharged into the soil ineligible (illegal dumping).
5.
Waste
plastic, glass, metal and rubber are buried in the soil.
6.
The
remaining pesticide from agricultural activities that soak into the ground.
7.
Waste detergents discharged into the ground.
8.
The erosion of topsoil (topsoil) by water.
9.
Compounds of amino acid rain events seep into
the ground.
The impact Of
Soil Pollution is :
1.
With
the presence of pollutants in the soil can berdapak negative environmental
balance. Plastic, glass, metal and rubber are buried in the ground will be hard
broken down by decomposers in the soil. Its presence in the soil can reduce
soil fertility.
2.
Waste
disposal detergents and pesticides content in the soil can kill the organisms
in the soil decomposers that interfere with the process of decomposition of
organic compounds.
3.
Erosion
of humus layer of the soil surface can reduce the productivity of the soil, the
soil becomes less fertile. Topsoil erosion can be caused by illegal logging
that denuded forest.
4.
The
presence of acidic compounds acid rain can cause changes in the degree of
acidity (pH) of the soil, it affects the activity of decomposing organisms in
the soil. The change also affects soil acidity is not good for the absorption
of nutrients from the soil by plants.
5.
The
impact of pollution on the health of the soil depends on the type of pollutant,
the entry into the body and the vulnerability of the affected population.
Chromium, a wide range of pesticides and carcinogens herbisidamerupakan for all
populations. Lead is particularly dangerous in children because it can cause
brain damage, and kidney damage in the whole population. Kuri (mercury) and
siklodiena known to cause kidney damage, some can not even be treated. PCB and
siklodiena related liver toxicity.
6.
Soil
pollution can also have an impact on the ecosystem . Changes in soil chemical
radicals can arise from the presence of toxic chemicals / hazardous even at low
doses though. These changes can lead to changes in metabolism of endemic
microorganisms and arthropods that live in the soil. As a result, some species
can even destroy the primary of the food chain, which can give a great result
against predators or other levels of the food chain.
There are several steps handlers to
reduce the impact of the pollution of the soil.
Among them :
1.
Remediation activities to clean the surface is contaminated soil. There are
two types of soil remediation, ie in-situ (or on-site) and ex-situ (or
off-site). Cleaning is the cleaning on-site at the location. Cleaning is
cheaper and easier, consisting of cleaning, venting (injection), and
bioremediation.
Cleaning off-site includes excavation
of contaminated soil and then taken to a safe area. After it was in a safe
area, the land is cleared of contaminants. The trick is, the land is kept in
tubs / tanks are watertight, then the cleaning agent is pumped into the tub /
tank. Furthermore pollutants pumped out of the tub and then treated with
wastewater treatment plant. Off-site cleanup is much more expensive and
complicated.
2.
Bioremediation is the process of
cleansing the soil contamination using microorganisms (fungi, bacteria).
Bioremediation aims to break down or degrade contaminants into less toxic
materials or non-toxic (carbon dioxide and water).
