Grade ‘B’ analytical laboratory is functioning in the Department since 1992. The activities of the laboratory includes:  

1.         Ambient air quality and Stack monitoring in industries.

2.         Monitoring of industrial effluent.

3.         Noise monitoring

4.         Vehicular monitoring

5.         Surface and ground water quality monitoring

6.         Monitoring on festival occasion such as Deepavali and Vinayagar Chathurthi (Ganesh festival)  

Laboratory is participating regularly in the analytical Quality Control exercise conducted by the CPCB, Delhi. The performance of the Laboratory in the Analytical Quality Control exercise was highly appreciated by the Central Pollution Control Board, GOI, New Delhi.  Based on the analytical performance of the Staff during 1992-1995.  Department’s Laboratory has been certified as one of the Tenth best performing laboratory out of 70 Laboratories in our Country.  

Laboratory staff have participated in Analytical Quality Control Exercise (Air Samples) conducted by CPCB and GTZ at New Delhi in All India basis during 5th  –14th , March 2001 at CPCB, New Delhi and stood at third best performing  laboratory at national level.

As there was no scientific staff in Puducherry Pollution Contol Committee till the year 2006, the entire laboratory activities regarding monitoring and analysis were carried out by the Laboratory staff of the Department of Science, Technology & Environment.                   

Dr.V.Sumathi, Scientist and Mr.Vipin Babu, JSA participated the review meeting  

 

Parameter Assessed in the Laboratory (Water samples)

S.No.

Parameter

Method Followed

1.

Temperature

Thermometric method

2.

PH

Electrometric method

3.

Turbidity

Nephlometric method

4.

Dissolved Oxygen

Iodometric method

5.

Biochemical oxygen Demand

Dilution method

   6.

Nitrogen, nitrate + nitrite

Amalgamated Cadmium Reduction method for reduction of nitrate to nitrite by diazotization method

7.

Conductivity

Conductometric method

8.

Chloride

Argentometirc method

9.

Total Residual Chlorine

Titrimetric method

10.

Hardness

EDTA Titrimetric method

11.

Calcium

EDTA Titrimetric method

12.

Magnesium

By difference of 13 and 14

13.

Alkalinity

Visual titration Method

14.

Sulphate

Turbidimetric method

15.

Sodium

Flame photometric method

16.

Pottasium

Flame photometric method

17.

Chemical Oxygen Demand

Dichromate reflex method

18.

Total Dissolved Solids and Fixed Dissolved Solids

Gravimetric method

19.

Phosphate

Molybdate method (Colorimetry)

20.

Boron

Curcumin method (Colorimetry)

21.

Ammonia

Nesselerisation Method

22.

TKN

Distillation followed by Colorimetry method

23

P/R ratio

Iodometric method

24.

Oil & grease

Solvent Extraction Method

25.

TSS

Gravimetric method

28.

Chromium Trivalent

Colorimetry method

29.

Chromium Hexavalent

Colorimetry method

                                                            

Air Samples

S.No.

Parameter

Method Followed

01.

Suspended Particulate Matter (SPM)

Gravimetric

02.

Respirable Suspended Particulate Matter(RSPM)

Gravimetric

03.

Sulphur di oxide (SO2)

Improved West and Gaeke Method

04

Oxides of Nitrogen as (NOx)

Jacob & Hochheiser Modified Method 

05.

Chlorine

Calorimetric method

06.

Acid Mist (HCl & H2SO4)

Titrimetric

07.

Ammonia

Nesslerisation

 

Details of monitoring conducted during 2008-09  

S.No

Type of Monitoring

No. of Monitoring

1.

Ambient

209

2.

Stack

66

3.

Effluent

38

4.

Noise level survey

3

5.

Vehicular emission

1

 

                     Ambient monitoring in M.S. ingots manufacturing unit

 

 

Stack monitoring

    

 

Analytical work at the laboratory