MONITORING OF INDIAN
NATIONAL AQUATIC RESOURCES (MINARS) AND GLOBAL ENVIROMNETAL MONITORING
Tamil Nadu Pollution
Control Board is monitoring the inland water quality under two major
programmes namely Global Environmental Monitoring System (GEMS) from
1984 and Monitoring of Indian National Aquatic Resources (MINARS)
from 1988 at 32 stations along the four major rivers i.e. Cauvery,
Tamiraparani, Vaigai and Palar and three lakes i.e. Ooty, Kodaikanal
and Yercaurd in Tamil Nadu.
Subsequently, CPCB has
sanctioned 23 additional Water Quality Monitoring stations under
the 11thplan period during November 2010 and the Monitoring was
started from December 2010. At present 55 (32 old stations+23 new
stations) stations are being monitored by Tamil Nadu Pollution
Control Board.The programmes are funded by the Central Pollution
Control Board, New Delhi.
Under MINARS programme,
the rivers Tamiraparani, Palar and Vaigai and the lakes
Udhgamandalam, Kodaikanal , Yercaud ,Veeranam ,Porur ,Poondi,
Pulicat and Redhills are being monitored. Under GEMS and MINARS
programmes the river Cauvery is being monitored.
Cauvery and its Tributaries
river is a major river in the State which drains more than one third
of the State.This river has been identified as a major river for
studying the impact of pollution caused by various activities of the
domestic and industrial sectors.The quality of cauvery river water
is being monitored at thirty three (33) places along the river under
GEMS (4 stations) and MINARS (29 stations). These places have been
selected on the basis of the location of outlets for the discharge
of industrial effluents,municipal and domestic wastes.
and biological parameters are analysed for all the monitoring
stations. Sampling is carried out based on the frequency
prescribed by Central Pollution Control Board, New Delhi and
analysis is done at the Advanced Environmental Laboratory, Salem.
quality of the Thamiraparani river is being monitored on a frequency
prescribed by Central Pollution Control Board, New Delhi at 12
places.The physico-chemical parameters and biological parameters are
analysed in the District Environmental Laboratory at Tirunelveli.
The River Palar
viz., Vaniyambadi Municipal Head Works in the Palar river is being
monitored every month. The analysis of water samples is done in the
Advanced Environmental Laboratory at Chennai, for physico-chemical
and biological parameters.
The River Vaigai
quality of the Vaigai river is being monitored by collecting the
samples once in six months from the collection well of Thirubuvanam
Head works and analysed in the Advanced Environmental Laboratory at
Madurai for physico-chemical and bacteriological parameters.
Under MINARS programme, 8 important lakes of Tamil
at Udhagamandalam, Kodaikanal, Yercaud, Veeranam, Porur ,Poondi ,Pulicat
and Redhills have been identified and monitored by collecting
samples on monthly basis.