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Nes 406: Water Quality Monitoring And Remediation Question Paper

Nes 406: Water Quality Monitoring And Remediation

Course:Bachelor Of Science In Environmental Science

Institution: Maseno University question papers

Exam Year:2012

MASENO UNIVERSITY

UNIVERSITY EXAMINATIONS 2012/2013

FOURTH YEAR FIRST SEMESTER EXAMINATIONS FOR THE
DEGREE OF BACHELOR OF SCIENCE IN ENVIRONMENTAL SCIENCE
WITH INFORMATION TECHNOLOGY

(MAIN CAMPUS)

NES 406: WATER QUALITY MONITORING AND REMEDIATION

Date:10th December, 2012 Time:11.00-1.00pm

INSTRUCTIONS:
.Answer question ONE and any other TWO questions.

MASENO UNIVERSITY ISO 9001:2008 CERTIFIED

1.a)Explain the term "bioremediation" as used in water quality restorations practices.(4 marks)

b)i)Explain the factors that have to be considered in selecting a sampling site for water quality monitoring (7 marks)

(ii)Describe the information that must be provided for any sample marked for water quality testing.
(9 marks)

c)Explain the "typical monitoring objectives" commonly used in designing a sampling network.(10 marks)

2.(a)Write short notes on advanced instrumental analysis of water quality (12 marks)

(b)Calculate how long it would take a water body with surface area of 150000km^2 and an average depth of 150m to recover completely from contamination of pollutants if the rate of outflow is 18000m^3 per minute, assuming that the pollutant never settled in the bottom of the sediment. (8 marks)

3.Discuss the potential health risks that may be associated with domestic use of an open borehole within unconsolidated aquifer. (20 marks)

4.(a)Prepare a comprehensive field-work checklist for water quality monitoring activities.(12 marks)

(b)Explain the quality control practices that must be observed during field sampling and laboratory analysis of water quality parameters. (8 marks)

5.(a)Describe the methods of establishing the mean flow rate of a stream. (8 marks)

(b)Write briefly on biological water quality monitoring. (12 marks)

6.Give a critical account of the nature and structure of institutions entrusted with the responsibility of water quality monitoring and restoration in Kenya. (20 marks)

Nes 406: Water Quality Monitoring And Remediation Question Paper

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