ENVIS Centre, Ministry of Environment & Forest, Govt. of India

Printed Date: Tuesday, August 4, 2020

Punnakayal estuary

 

Name of the estuary
Punnakayal estuary
Name of the river
Thamiraparani
Place
Punnakayal
District
Thoothukudi
State
Tamil Nadu
Important landmarks
Punnakayal
Average Depth
2 m
Type of the estuary
Bar-built
Water temperature
27°C
Nature of the substratum
Muddy
Salinity
29.9 ppt
Dissolve doxygen
4.54 ml/l


Image

 

River Basin Map

 

Photos

 

 

 

 

Physico-chemical parameters

 


 

Heavy metals in the water (mg/L) of PUnnakayal station 1 and 2

Sl.

No.

Months

Zn

Pb

Fe

Cr

S1

S2

S1

S2

S1

S2

S1

S2

1

Feb. ‘08

BDR

BDR

0.051

0.048

0.71

0.45

BDR

BDR

2

Mar. ‘08

0.38

BDR

0.030

0.026

0.99

0.81

0.150

0.130

3

Apr. ‘08

BDR

BDR

0.020

0.020

0.78

0.75

0.080

0.080

4

May ‘08

BDR

BDR

0.020

0.010

0.11

0.10

0.06

0.040

5

June ‘08

0.25

0.25

0.033

0.030

0.61

0.65

0.068

0.064

6

July ‘08

0.31

0.21

0.035

0.011

1.80

0.80

0.066

0.058

7

Aug. ‘08

0.25

0.28

0.051

0.070

1.50

0.35

0.088

0.071

8

Sep. ‘08

0.28

0.25

0.050

0.065

1.60

0.38

0.100

0.091

9

Oct. ‘08

0.38

0.28

0.070

0.080

2.88

3.18

0.160

0.110

10

Nov.‘08

0.45

0.41