1. Welcome

2. Environmental Monitoring
A presentation on
Environmental Monitoring
(Definition, Objectives, Methods and Techniques)
Course no-405
Submitted to
Dr. Md. Abu Taiyeb Chowdhury
Professor
Submitted by
(Group-D)
Md. Robiul Hussain
Binti Nath
Nasrin Akhter
Shwamshan Kumar
Department of Geography and Environmental Studies
University of Chittagong

3. Environmental Monitoring is defined as the observation of the presence of harmful factors such as toxins, bacteria, chemicals and other pollutants in a specific location. According to P. Venugopala Rao, “Environmental monitoring means collecting a representative portion of water, waste or air from an area to ascertain its quality and characteristics.”

4. Environmental Monitoring System1 8 / 2
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Environmental Monitoring System

5. Objectives of Environmental Monitoring
To establish a base-line of exposure.
To co-relate with a suspected source of contamination.
To estimate the changes in levels of the pollutants in the environment.
Confirming and reconfirming the success of the pollution control measures.
Collection of meaningful and relevant information.
Know the nature and degree of pollution from various sources.
Recommendation of improves mitigation measures to be undertaken.

6. Objectives of Environmental Monitoring

7. Purpose of Environmental Monitoring
Adopt and design specific purification plants
Check the industries for compliance(as per the regulations) of emission standards.
To prevent health hazards and disasters.
Progressively improving the state of the environment.

8. Purpose of Environmental Monitoring

9. Methods of Environmental Monitoring
There are no core indicators
The "best" method is not necessarily the appropriate method
Indicators must be chosen on the basis of the hypotheses of the program
Field and analytical methods must be comparable in terms of precision
Analysis cannot compensate for poor experimental design
Design, sampling, analysis, and reporting need to be integrated
Quality control is a necessary component of any sampling program

10. Methods of Environmental Monitoring

11. Types of Environmental Monitoring
Occupational
Target
Factor
Integrated
Area
Personal
Bio
Source
Media
Ambient
Trend
Fig: Classification of Environmental Monitoring

12. Techniques of Environmental Monitoring
Instrumental technique
Sound level meter
Geiger counter
Therometer Oxygen meter
Hydrometer
Calorimeter
Chemical analysis (through mechanical device)
Atomic absorption spectroscopy
Infrared spectra photometry
Gas chromatography
Chemical analysis
Biological system
Hybrid system

13. Techniques of Environmental Monitoring
Instrumental technique
Biological system
Chemical analysis
Hybrid system
Sound level meter
Therometer oxygen meter
Calorimeters
Oxygen meter
Geiger counter
Hydrometer
Here volumetic, gravimetic and colourmatic analysis done
Through mechanical device
Atomic absorption spectophotometric
Infra red spectrometric
Gas chromatography

14. Conclusion
It provides scientific raw data for detecting long-term changes in the monitored environment over time.
Monitoring allows the early identification of potentially significant effects (i.e., early trends which could become serious)
Protection of human health and life.
Progressively improving the state of the environment.

15. Photograph of few Instrument used in Monitoring
Chemical Analysis of Environmental Monitoring
Instrumental Technique of Environmental Monitoring

16. Photograph of few Instrument used in Monitoring
4 in 1 Multi-function environment meter
Environmental monitoring equipment

17. REFERENCES
Aritola, J.F.; Pepper, I.L.; et.al.(2004) Environmental Monitoring and Characterization, Elsevier academic Press, San Diego.
Singh, S. (2004) Environmental Geography, Prayag Pustak Bhawan, Allahabad.
Saxena, H.M. (2004) Environmental Geography, Rawat Publications, New Delhi.
Wiersma, J.B. (2004) Environmental Monitoring, CRC Press, USA.
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(last visited on 23/05/13 at 9pm)
(last visited on 23/05/13 at 9pm)
(last visited on 23/05/13 at 9pm)
(last visited on 23/05/13 at 9pm)

18. THANK YOU