load assessment and potential environmental risks of composite industrial
effluents discharged from Siidcul Integrated Industrial Estate, Haridwar
Arora1*, A. Mishra1, G. Matta1, A. K. Chopra1,
A. Kumar2, D.R. Khanna1 and V. Kumar1
Zoology and Environmental Science, Gurukul Kangri University, Haridwar-249
Mathematics and Statistics, Gurukul Kangri University, Haridwar-249 404,
Author E-mail: firstname.lastname@example.org
received : 11.07.2015
received : 08.01.2016
received : 14.02.2016
Accepted : 19.03.2016
Aim: Water pollution in
unarguably one of the most fundamental environmental issue at global and
local level. The industrial wastewaters are emerging as challenging threat to
ecological balance. The aim of the present study was to investigate the
pollution load of composite industrial effluents discharged from the State
Infrastructure and Industrial Development Corporation of Uttarakhand Limited
(SIIDCUL) Integrated Industrial Estate (IE) at Haridwar (Uttarakhand), India
with reference to ecological risks.
to large outstretch of industrial area, the industrial complex was divided
into four clusters (Cluster A to Cluster D). The effluent samples were
collected from the drainage channels marked from the sampling sites at
industrial area. Standard methods of APHA (2012) were followed for the
analysis of effluents samples.
results revealed that there was a remarkably high pollution load at
industrial estate. The effluents discharged from the industrial units at
Cluster C were slightly acidic (pH 5.33) and the parameters like TDS (2107.67
mg l-1), BOD (453.33 mg l-1), COD (1003.3 mg l-1)
and some heavy metals like Fe (37.38 mg l-1), Cr (11.254 mg l-1),
Cu (4.9 mg l-1) and Pb (2.11 mg l-1) exceeded the
permissible limits as prescribed by Bureau of Indian Standards (BIS, 2012),
thereby indicating a considerably higher load of pollutants. The load of
metals concentration in the effluents of different clusters was found in the
following order: Fe>Cd>Zn>Ni>Cr>Cu>Pb>Mn. The higher
content of metals in industrial wastewater may be due to the discharge of
untreated effluents from metal processing industries.
of effluents can be a source of severe ecological risks in the form of
contamination of groundwater, soil, vegetation. Consumption of crops and
vegetables irrigated with these effluents may have serious threats to human
health, thereby causing a risk of various ailments like encephalopathy,
cardiovascular and kidney diseases; muscular pain and intestinal hemorrhage.
It is recommended that pollution control and regulatory authorities should
periodically monitor the quality of effluents so as to ensure the compliance
of prescribed standards.
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