Page 141 - Genius Kidz Prudence Learning Sc-8

Activity 3

Investigate about “Biological oxygen demand (BOD)” and chemical oxygen demand (COD).
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Prevention of water pollution Twelve years ago the government started a

Water pollution can be prevented by following programme to save the monument, with Bill
the methods enlisted below: Clinton saying that pollution had done "what
350 years of wars, invasions and natural
! Don’t throw undesirable substances in the
water streams. disasters have failed to do."
In 1998, when the white marble of the famous
! Try to prevent the undesirable run off of
monument began to turn yellow, warning bells
water from taps.
went off. India's Supreme Court ordered that
! Environment friendly products must be more than £90 million be spent on restoring
used.
the country's most famous monument.
! Wastes from industries must be recycled. Conservationists have taken a number of steps
to curb pollution in Agra which is a growing
1
Identification of water
Quality-limited waters manufacturing centre. Cars have been banned
Review water quality standards
Evaluate monitoring data from within 500 metres of the monument. An
Determine if adequate controls
are in place
5 LED display gives a running tally on air
Assessment of water quality- 2
Based control actions Priority Ranking and Targeting pollution. Diesel-run rickshaws have been
Monitor point/non-point sources Integrate priority ranking with other
Audit NPS control for effectiveness water quality planning and replaced by cleaner vehicles, a road by-pass
water quality standards management activities
Use priority ranking to target
waterbodies for TMDLs has been created and there has been heavy
investment in a refinery to reduce emissions.
4
Implementation of Control Actions 3 But despite these actions, a new report has
Development of TMDLs
Update water quality management plan Apply geographic approach
Issue water quality-based permits where applicable
Implement non-point source controls Establish schedule for phased found that pollution levels have increased
(section 319 management plans) approach, if necessary
Complete TMDL development dramatically; so much so that emissions of
nitrogen oxide have reached higher levels than
Steps to control water pollution
those of twelve years ago.
Effect of pollution on Taj Mahal : A case study
There are several reasons for the problem. The
The Taj Mahal in Agra, (India) is one of the
world's great sights, but it is in danger of being city of Agra has grown in size, industry and
population. Fumes from greater traffic have
irreparably damaged by air and water
made the Taj Mahal dirty again. There are "
pollution.
thousands of vehicles plying the roads and

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