| Soil
pollutants |
Sediments
Due to soil erosion on
hill slope or coastline
where loose soil
practices are washed
down and carried to
streambed, lake or ocean
Organic
matter
Addition of fertilizers
and nutrients to promote
plant growth and
development, usually
from urea and faecal
matter of animals, or
decomposition of dead
organism.
|
| - |
decomposed
matter provides
fertility to
soil for
agriculture |
| - |
sediments
can be collected
and used for
construction of
barriers |
|
| - |
occurrence
of landslip at
hillslope |
| - |
unbearable
stench of
decomposing is
imminent |
| - |
leeching
of organic
matter to
streambed, lake
or ocean,
leading to
eutrophication |
| - |
depth
of lake is
reduced as a
result of
sedimentation |
| - |
change
in original
geographical
landscape |
|
| Air
pollutants |
Particulate
matter
Due to volcanic eruption
and evaporation of gases
such as methane, sulfur
dioxide, nitrogen
dioxide and carbon
dioxide from decomposing
materials to the
atmosphere which
accumulates gradually
and chemically reactive
to react
|
|
| - |
atmospheric
visibility
reduce (haze,
smog) |
| - |
build
up of toxic
chemicals in the
atmosphere
harmful to
living organisms |
| - |
frequent
asthma attack |
| - |
adverse
respiratory
illness is
imminent |
|
