1. ARSENIC
POLLUTION OF
GROUNDWATER IN
BANGLADESH
KIM 3701
KIMIA ALAM SEKITAR

2. GROUP MEMBERS
 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
UK26258

3. DEFINITION
Groundwater Pollution:
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.

4. ORGANIC
INORGANIC:
TOXIC
TYPES OF POLLUTANT

5. ARSENIC
33rd element in Periodic Table.
Inorganic toxically metal pollutant.
Highest priority contaminant on the
priority list of hazardous substances.
Refer:
http://www.atsdr.cdc.gov/SPL/index.html
Known as poison and human carcinogen.

6. CASE STUDY

7. CHRONOLOGY of Arsenic
Pollution in West Bengal, India
Arsenic natural geological is present in local
bedrock.
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
agrochemical field.
The Arsenic from pesticides and fertilizers
percolated into the ground.

8. CHRONOLOGY cont..
The deep tubewells continue pulling up the
deep Arsenic, therefore the situation
became worst.
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
tubewells.
0.84 million people exposed to Arsenic, 0.14
million people suffering arsenical skin lesion.

9. Cause acute and chronic toxicity.
Liver and kidney damage.
Skin disease such as keratosis (hardening
palm and
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
painful death.
EFFECTS to health

10. KERATOSIS

11. 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
contaminated groundwater.

12. OVERCOMES
Monitoring water quality to detect
contamination.
Declaring water source protection area.
Managing the activities to minimize their
impact to environment.
Get the alternative water supply to replace
the contaminated water.

13. SUGGESTIONS
Use pesticides and fertilizers with care.
Keep chemicals and waste safe from rain.
Conduct household hazardous wastes
collection.
---------------------------------------------------------------------
RECOMMENDATION
Inform and educates people more about
groundwater.

14. CONCLUSION
Arsenic contamination is not peculiar to
Bangladesh alone. This is a global
problems.
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.