KIMIA ALAM SEKITAR
Abdul Rahman bin Yusuf UK26406
Zaiimah binti Rozman UK25649
Siti Soleha binti Mustaffa UK24901
Wan Azwira binti Wan Ahmad UK26257
Nurul Syazdiana binti Mohd Zuki
The contamination of groundwater by
different form of chemicals and
synthetic pollutants that reduces the
quality of groundwater making it limited
for normal use by living beings.
33rd element in Periodic Table.
Inorganic toxically metal pollutant.
Highest priority contaminant on the
priority list of hazardous substances.
Known as poison and human carcinogen.
CHRONOLOGY of Arsenic
Pollution in West Bengal, India
Arsenic natural geological is present in local
The deeper the level of groundwater, the
higher the concentration of Arsenic.
Using of deep tubewells for water supply
and power pump.
Using of pesticides, fertilizers in
The Arsenic from pesticides and fertilizers
percolated into the ground.
The deep tubewells continue pulling up the
deep Arsenic, therefore the situation
People used the water from the
tubewell, unknowingly they were
transferring the Arsenic to their body.
Epidemiological study was carried out.
Water sam-ples were obtained from the
0.84 million people exposed to Arsenic, 0.14
million people suffering arsenical skin lesion.
Cause acute and chronic toxicity.
Liver and kidney damage.
Skin disease such as keratosis (hardening
sole), melanosis(hyperpigmentation), blackeni
ng of skin.
Irritation to skin and mucous membrane.
Irreversible circulatory insufficiency.
Arsenicosis by drinking arsenic
contaminated water which can lead to very
EFFECTS to health
EFFECTS to environment
Changing of microbiological balance of soil.
Change of arable land to barren land due to
use of contaminated water.
Contamination of water due to leakage of
Monitoring water quality to detect
Declaring water source protection area.
Managing the activities to minimize their
impact to environment.
Get the alternative water supply to replace
the contaminated water.
Use pesticides and fertilizers with care.
Keep chemicals and waste safe from rain.
Conduct household hazardous wastes
Inform and educates people more about
Arsenic contamination is not peculiar to
Bangladesh alone. This is a global
The great difference is the degree and
velocity of this environmental disaster in
Bangladesh for the number of people at
risk is higher than other countries.
Prevention and awareness is the best way
to reduce groundwater pollution.
High arsenic concentration are present
mostly in shallow groundwater.