NATIONAL OPEN UNIVERSITY OF NIGERIA1234
Plot 91, Cadastral Zone, Nnamdi Azikiwe Expressway, Jabi – Abuja
Faculty of Health Sciences
Department of Environmental Health Science
2020_2 Examination
Course Code: EHS403
Course Title: Environmental Health Laboratory
Course Units: 2 Credit Units
Time Allowed: 2 Hours
Total Score: 70 Marks
Instruction: Answer all questions
QUESTION 1
a. What are laboratory techniques? (15marks)
b. Explain the role of Environmental Laboratory in pollution control programs
(15marks)
QUESTION 2
Mention five functions of Environmental Laboratories (10 marks)
QUESTION 3
a. What is laboratory hood system? (15marks)
b. What is the purpose of the Material Safety Data Sheet? (15marks)
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