- Open Access
- Total Downloads : 6
- Authors : M.S.Nagaraja Gupta, Dr.C.Sadashivaiah, Dr.G Ranganna, Dr. Inayathulla, H.Chandrashekar
- Paper ID : IJERTCONV3IS19037
- Volume & Issue : ICESMART – 2015 (Volume 3 – Issue 19)
- Published (First Online): 24-04-2018
- ISSN (Online) : 2278-0181
- Publisher Name : IJERT
- License: This work is licensed under a Creative Commons Attribution 4.0 International License
on Assessment of Heavy Metals in Water Sources of Peenya Industrial Area, Bengaluru, India
-
agaraja Gupta 1 Dr C.Sadashivaiah 2 Dr.G Ranganna 3 Dr. Inayathulla4 H.Chandrashekar5
-
Asst. Professor Dept. of Civil Engineering,East West Institute of Technology, Bengaluru, India
-
Principal, Karavali Institute of Technology, Mangaluru, India
-
Visiting Professor UGC-CAS in F.M, Bangalore University, Bengaluru, India.
-
Professor, Faculty of Civil Engg,. Bangalore University, Bengaluru, India.
-
Selection Grade Lecturer, MEI Polytechnic, Bengaluru, India.
-
Abstract:- Rapid industrialization and urbanization have recently become the need of the hour, for the countries like India. Levels of pollution are increasing beyond the prescribed limits as huge inputs of pollutants from the industries are entering the groundwater sources. The industries that induce the pollutants into the surface and groundwater sources from their activities do not strictly regulate their pollutant to safe limits. Many industries discharge their effluents without any treatment into nearby low lying areas or pass them through unlined drains, which move towards the depressions on land, resulting in the contamination of surface and groundwater sources. The industrial effluents, if not treated to remove or bring pollutant concentration level below standards specified, can pollute and cause serious damage to the water resources. The present study aims at assessing the heavy metal concentrations in water of Peenya industrial area, Bengaluru city. Water samples from 34 subsurface sources(bore wells and hand pumps) and 6 surface sources (tanks) in and around the industrial area were collected in Marcp013 and December 2013. Analytical procedures as described in the Standards were implemented for heavy metal analysis of these water samples and the results were compared with the permissible limits of heavy metals prescribed by Bureau of Indian Standards for drinking water(IS 10500), in order to evaluate the possibility of health hazards in the study area. The results reveal that most of the study area is highly polluted, because of the excessive concentration of one or more heavy metals like Nickel, Cadmium, Arsenic and Chromium, iron and copper. It is evident that water samples are non potable as per Bureau of Indian standards (IS 10500).
Keywords: Industrial area, Pollutants, heavy metals, BIS standards, Potability.
-
INTRODUCTION
Industrialization has become essential for the economic development of the developing country like India. The major source of water pollution is release the effluents from industries. These effluents percolate into ground or flows into surface sources through damaged effluent storage tanks, damaged chemical storage tanks, damaged pipe lines, channels and damaged lining of drains. Some industries which are not having effluent treatment plants are disposing off their effluents into public sewers or open land in their premises itself. This activity of the industries results in increasing the water pollution. Some industries dump their solid wastes in open fields, which on decomposition releases the lechate which percolates into ground causing ground water pollution or flows into nearby surface sources. The study area considered is one of the
largest industrial areas of Asia which houses nearly 2100 industries of different types. In the study area considered, people are using contaminated water for various purposes and are facing different types of health problems. Hence, the present study aims in the assessment of water quality and suggesting mitigative measures for the problems related to water pollution.
-
DETAILS OF STUDY AREA
2.1 LOCATION
Bengaluru lies between North Latitude 12°5221 to 13°60 and East Longitude 77°045 to 77°3225 covering an area of approximately 800 sq.km. The study area is Peenya Industrial area, covering about 40 sq.km and lies to the North of Bengaluru on the national highway-
4 and houses more than2100 industries dominated by chemical, leather, pharmaceutical, plating, polymer engineering and allied industries. This industrial area was established in late 1970s. The area is surrounded by residential houses and private industrial areas.
-
CLIMATE
The mean annual rainfall over Bengaluru City is 860mm. Most of it is received during the southwest monsoon between June and September and during northeast monsoon. Statistically September is the wettest and January the driest month of the year. Air temperature varies between a minimum of 14°C and maximum of 34°C. The lowest temperature ever recorded was 7.8°C and the highest 38.9°C. April is the hottest month of the year while December to January marks the coldest period. The lowest relative humidity of 30% is noticed during the month of March and the highest between June and October, reaching up to 85%. Surface winds have seasonal character with westerly components predominating in July and easterly components in October. High-wind-speed averages of about 17 km/h during July under westerly winds and low- wind-speed averages to 8 to 9 km/h between April and October.
-
Soil, Geology and Drainage
Geologically, Peenya Industrial Area belongs to Achaean era. Gneiss, granite and dykes are the major rock types, the former two being found in varying depths. The area is nearly evenly flat with only gentle slopes and valleys. Predominantly red soil is found in the area overlaying granite and gneiss from which it is derived. The
soil is moderately to severely eroded and excessively drained. It varies from gravelly to sandy with some clay here and there.
The drainage pattern is governed by granitic ridge, running north-northeast to south-southeast almost through the middle of the taluk. The eastern side of the drainage is made up of a network of nallas, flowing generally from west to east with storage tanks along the th, ultimately feeding the South Pinakini river on the western side. The western nallas generally flow from east to west, draining off into Arkavati river.
-
Topography
Topography of Bangalore is a ridge trending NNWSSE. The Western part of the area is characterized by a dissected topography with ridges and valleys exposing hard rock, due to occurrence of rapid head-ward erosion of the Arkavathi River and its tributaries. The eastern part of the city is a level plain. The western part of the drainage of this ridge flows and joins the Arkavathi while the Eastern plains drain towards the South Pinakini. The highest point in the city is 924 m above Mean Sea Level near Triveni Engineering Works (Peenya Industrial Area) and the lowest around 800 m near Jevarana Doddi (Bangalore University).
-
Water bodies
Prominent water bodies in the vicinity of Peenya Industrial Area comprise of three tanks:Shivapura, Karihobanahalli and Dasarahalli. All the three tanks are lying downstream and are fed by a number of streams running through Peenya Industrial Area.
Fig.1 shows the location map of the study area
2.2. Details of Sampling Points
based on the hazardous ambient environment condition and the activities taking place around it.
collected, 34 samples are from sub- surface sources (Bore wells and hand pumps, ) and samples from No. 35 to 40 i.e., 6 samples are from surface sources (Tanks in and around the study area).
-ordinates of each of the forty sampling points are as shown in Table.1
.
-
-
METHODOLOGY
The samples collectd from the study area are subjected to heavy metal analysis as per the standard methods. The heavy metals analysed include Iron, Copper, Nickel, Lead, Zinc, Cadmium, Arsenic and Chromium. The results obtained are compared with Standard values of permissible limits of heavy metals for drinking water prescribed in IS10500-1991.
-
RESULTS OF ANALYSES
The samples collected from both surface and sub- surface sources are analyzed by using standard procedure for water and wastewater (APHA 2002).The results obtained were evaluated in accordance with the norms prescribed under Indian Standard Drinking Water Specification IS 10500. (1991) of Bureau of Indian Standards. The obtained results are tabulated in Tables 2 and 3. The results are graphically represented as shown in Fig.3 to Fig.10
Fig.1. Location of study area
Table.1 Locations of water sampling sites
Sample station
Latitude
Longitude
Sample station
Latitude
Longitude
1
1302'40.12"N
77 31' 30.62"E
21
13º 01' 23.43"N
77º 29' 54.29"E
2
1302'21.07"N
77 31' 36.24"E
22
13º 01' 63.31"N
77º 29' 53.75"E
3
1302'17.31"N
77 31' 50.09"E
23
13º 01' 00.27"N
77º 29' 54.49"E
4
1301'25.55"N
77 31' 20.48"E
24
13º 01' 11.38"N
77º 30' 03.09"E
5
1302'07.11"N
77 30'30.56 "E
25
13º 06' 58.70"N
77º 30' 26.73"E
6
1302'11.73"N
77 30'35.64 "E
26
13º 02' 25.10"N
77º 30' 44.40"E
7
1259'19.31"N
77 29' 39.12"E
27
13º 02' 20.65"N
77º 30' 46.40"E
8
1259'23.24"N
77 29'38.03"E
28
13º 00' 42.33"N
77º 30' 30.51"E
9
1300'38.78"N
77 30'24.23"E
29
13º 01' 20.14"N
77º 30' 40.92"E
10
1300'30.29"N
77 30'19.99"E
30
13º 00' 48.08"N
77º 30' 52.52"E
11
1300'30.03"N
77 30'13.78"E
31
13º 01' 11.76"N
77º 31' 28.01"E
12
1300'55.45"N
77 30'17.34"E
32
13º 02' 33.79"N
77º 31' 52.78"E
13
1300'50.25"N
77 30'21.80"E
33
13º 02' 14.20"N
77º 31' 42.01"E
14
1300'33.65"N
77 30'14.86"E
34
13º 02' 19.19"N
77º 31' 39.72"E
15
1301'30.49"N
77 31'05.46"E
35
13º 02' 19.33"N
77º 32' 03.53"E
16
1301'25.79"N
77 31'05.28"E
36
13º 02' 25.89"N
77º 31' 18.24"E
17
1302'16.39"N
77 31'15.33"E
37
13º 02' 41.27"N
77º 31' 16.39"E
18
1302'03.43"N
77 30'44.29"E
38
13º 00' 46.51"N
77º 29' 05.12"E
19
1301'39.08"N
77 31'20.01"E
39
12º 59' 20.78"N
77º 29' 21.11"E
20
1300'34.43"N
77 31'29.93"E
40
12º 59' 27.43"N
77º 29' 35.91"E
Table. 2 Results of presence of heavy metals in water samples (pre monsoon)
Sample No.
Nickel mg/l
Lead mg/l
Zinc mg/l
Cadmium mg/l
Arsenic mg/l
Chromium mg/l
Iron mg/l
Copper mg/l
1
0.02
ND
3.335
0.003
0.005
ND
0.17
0.006
2
0.032
ND
7.4
0.004
ND
ND
0.172
0.009
3
0.001
ND
1.335
0.002
ND
ND
0.09
0
4
0.002
ND
1.66
0.013
ND
ND
0.06
0.022
5
0.019
ND
3.85
0.004
ND
ND
0.164
0.003
6
0.2
0.05
9.42
0.244
0.13
150
3.87
0.745
7
0.02
ND
11.4
0.009
ND
ND
0.4
0.013
8
0.026
ND
4.44
0.001
ND
ND
0.175
0.006
9
0.024
ND
4.64
0.007
ND
ND
0.55
0.005
10
1.678
ND
56.09
0.223
ND
ND
0.313
0.63
11
0.04
ND
4.06
0.001
ND
ND
0.35
0.005
12
0.08
ND
1.265
0.003
ND
ND
0.17
0.006
13
0.075
ND
1.123
0.013
0.051
1.9
3.9
0.005
14
0.07
ND
3.3
0.012
ND
ND
0.244
0.013
15
0.05
ND
9.178
0.014
ND
ND
0.3
0.02
16
0.108
ND
10.065
0.02
ND
ND
0.08
0.01
17
0.04
ND
0.905
0.001
ND
ND
0.075
0.004
18
0.042
ND
1.64
0.009
ND
ND
0.175
0.007
19
0.04
ND
11.65
0.01
ND
ND
0.1
0.006
20
0.06
ND
8.24
0.014
ND
ND
0.27
0.009
21
0.04
ND
0.72
0.02
ND
ND
0.215
0.009
22
0.042
ND
1.723
0.014
ND
ND
0.124
0.01
23
0.09
ND
4.55
0.001
ND
ND
0.289
0.01
24
0.045
ND
0.91
0.04
ND
ND
0.25
0.011
25
0.044
ND
1.305
0.02
ND
ND
0.65
0.013
26
0.05
ND
1.8
0.029
0.11
3.4
3
0.024
27
0.1
ND
1.76
0.02
0.02
2
4.2
0.03
28
0.04
ND
0.915
0.013
ND
ND
0.5
0.015
29
0.05
ND
0.86
0.02
ND
ND
0.601
0.03
30
0.034
ND
1.345
0.016
ND
ND
0.35
0.029
31
0.05
ND
1.295
0.025
ND
ND
0.572
0.01
32
0.04
ND
0.82
0.04
ND
ND
0.605
0.03
33
0.043
ND
0.19
0.002
ND
ND
0.397
0.009
34
0.045
ND
1.115
0.001
ND
ND
0
0.004
35
0.05
ND
4.445
0.006
0.005
3
6
0.014
36
0.053
ND
1.3
0.012
0.032
1.4
4
0.006
37
2.4
0.03
24
0.093
0.1
90
1.08
0.5
38
0.085
ND
1.855
0.1
0.11
24.5
3.7
0.155
39
0.06
ND
0.145
0.025
0.053
6.15
5
0.023
40
0.05
ND
0.4
0.006
0.23
4.45
7
0.002
(ND: Not Detected)
Table. 3 Results of presence of heavy metals in water samples (post monsoon)
Sample no
Nickel mg/l
Lead mg/l
Zinc mg/l
Cadmium mg/l
Arsenic mg/l
Chromium mg/l
Iron mg/l
Copper mg/l
1
0
0.17
0.098
0
0
0
0.03
0.1
2
0
0.16
0.16
0
0
0
0
0.01
3
0
0.16
0.141
0
0
0
0.11
0.02
4
0
0.14
0.092
0
0
0
0
0.04
5
0
0.15
0.148
0
0
0.8275
0.05
0.19
6
0
0.15
0.139
0
0
0
0.31
0.09
7
0
0.11
0.206
0
0
0.0068
0
0.52
8
0
0.11
1.878
0
0
0
0
0.06
9
0.109
0.11
0.092
0.026
0
0
0.16
0.36
10
0
0.12
0.115
0
0
0
0.01
0.17
11
0
0.12
0.111
0
0
0
0
0.6
12
0
0.12
0.098
0
0
0
0
0.73
13
0
0.13
0.103
0
0
0
0
0.58
14
0
0.11
0.089
0
0
0
0.3
0.69
15
0
0.08
0.094
0
0
0
0
0.44
16
0
0.1
0.102
0
0
1.4481
0.28
0.78
17
0
0.12
0.211
0
0
0
0
0.72
18
0
0.11
0.971
0
0
0
0.09
1.32
19
0
0.11
0.159
0
0
0
0
0.78
20
0
0.12
0.106
0
0
0
0.34
1.2
21
0
0.12
0.106
0
0
0
0.18
0.78
22
0
0.1
0.098
0
0
0
0.28
0
23
0
0.1
0.094
0
0
0
0.12
0.35
24
0
0.09
0.121
0
0
0.0393
0.06
0.89
25
0.008
0.14
0.125
0
0
0.2156
0
0.64
26
0
0.13
0.181
0
0
0
0.16
0.84
27
0
0.12
0.098
0
0
4.7925
0.18
0.65
28
0
0.12
0.09
0
0
0.2782
0.34
0.81
29
0
0.11
0.131
0
0
0.2337
0
0.51
30
0
0.12
0.656
0
0
0
0
0.72
31
0
0.12
0.137
0
0
0.0007
0
0.16
32
0
0.12
0.121
0
0
0.7193
0.26
0.83
33
0
0.13
0.098
0
0
0
0.79
0.61
34
0
0.09
0.387
0
0
0
0
0.83
35
0
0.09
0.649
0
0
0.0013
0.66
0.33
36
0
0.07
0.125
0
0
0
0.83
0.84
37
0.092
0.1
0.176
0
0
0.0212
0.69
0.55
38
0
0.1
0.102
0
0
0
0.79
0
39
0
0.08
0.09
0
0
0
0.54
0
40
0
0.11
0.252
0
0
0.0486
0.37
0
Iron
Iron
8
6
4
2
0
Pre-mansoon values
Post mansoon values Desirable limit-0.3 mg/l Permissible limit- 1.0 mg/l
8
6
4
2
0
Pre-mansoon values
Post mansoon values Desirable limit-0.3 mg/l Permissible limit- 1.0 mg/l
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39
Sample Number
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39
Sample Number
Iron in mg/l
Iron in mg/l
Copper in mg/l
Copper in mg/l
Fig.3 Seasonal variation of Iron in water samples
Copper
Copper
2
1.5
1
0.5
0
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39
Sample Numbers
Pre-Mon soon Values
Post-Monsoon Values
Desirable Limit-0.05mg/l Permissible Limit-1.5mg/l
2
1.5
1
0.5
0
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39
Sample Numbers
Pre-Mon soon Values
Post-Monsoon Values
Desirable Limit-0.05mg/l Permissible Limit-1.5mg/l
Fig.4 Seasonal variation of Copper in water samples
Nickel
Nickel
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39
Sample Numbers
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39
Sample Numbers
3
2.5
2
1.5
1
0.5
0
3
2.5
2
1.5
1
0.5
0
Pre-monsoon Values
Pre-monsoon Values
Post-monsoon Values
Desirable/Permissible Limit- 0.02mg/l
Post-monsoon Values
Desirable/Permissible Limit- 0.02mg/l
Nickel in mg/l
Nickel in mg/l
Lead in mg/l
Lead in mg/l
Fig.5 Seasonal variation of Nickel in water samples
Lead
Lead
0.2
0.15
Pre-Monsoon Values
0.2
0.15
Pre-Monsoon Values
0.1
0.1
Post Monsoon Values
Post Monsoon Values
0.05
0
1 3 5 7 9 111315171921232527293133353739
Sample Numbers
Desirable/Permissible Limit-
0.05mg/l
0.05
0
1 3 5 7 9 111315171921232527293133353739
Sample Numbers
Desirable/Permissible Limit-
0.05mg/l
Zinc in mg/l
Zinc in mg/l
Fig.6 Seasonal variation of Lead in water samples
Zinc
Zinc
60
50
60
50
40
30
20
10
0
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39
Sample Numbers
Pre-monsoon values
Post-monsoon Values Desirable Limit-5mg/l PermissibleLimit-15mg/l
40
30
20
10
0
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39
Sample Numbers
Pre-monsoon values
Post-monsoon Values Desirable Limit-5mg/l PermissibleLimit-15mg/l
Fig.7 Seasonal variation of Zinc in water samples
Cadmium
Cadmium
0.3
0.25
0.2
0.15
0.1
0.05
0
0.3
0.25
0.2
0.15
0.1
0.05
0
Pre-monsoon values
Pre-monsoon values
Post-monsoon values
Post-monsoon values
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39
Sample Numbers
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39
Sample Numbers
Desirable/Permissible limit-
0.001 mg/l
Desirable/Permissible limit-
0.001 mg/l
0.25
0.2
0.25
0.2
Pre-monsoon Values
Pre-monsoon Values
0.15
0.1
0.15
0.1
Cadmium in mg/l
Cadmium in mg/l
Arsenic in mg/l
Arsenic in mg/l
Fig.8 Seasonal variation of Cadmium in water samples
Arsenic
Arsenic
1 3 5 7 9 111315171921232527293133353739
Samle Numbers
1 3 5 7 9 111315171921232527293133353739
Samle Numbers
Post-monsoon Values
Post-monsoon Values
0.05
0
0.05
0
Desirable/Permissible limit-
0.05mg/l
Desirable/Permissible limit-
0.05mg/l
100
80
60
40
20
0
100
80
60
40
20
0
Pre-monsoon Values
Pre-monsoon Values
Chromium in mg/l
Chromium in mg/l
Fig.9 Seasonal variation of Arsenic in water samples
Chromium
Chromium
Post-monsoon Values
Post-monsoon Values
1 3 5 7 9 111315171921232527293133353739
Sample Numbers
1 3 5 7 9 111315171921232527293133353739
Sample Numbers
Desirable/Permissible limit-
0.05mg/l
Desirable/Permissible limit-
0.05mg/l
Fig.10 Seasonal variation of Chromium in water samples
-
DISSCUSSIONS OF RESULTS
Thirty four groundwater samples (1 to 34) were collected from the bore-wells and hand pumps and six other samples were collected from tanks in and around the study area (35 to 40).The results of chemical analyses are presented in Tables. 2 and 3. Table . 4 show the critical parameters along with the permissible limits for these parameters. Out
of the 40 samples analyzed for heavy metals, all 40samples (100%) were found to be non-potable. The main heavy metals constituting for the non -potability of the samples are iron ,Nickel, lead Cadmium and Chromium which accounted for 25%, 95%, 100% , 87.5% and 25% of unsafe samples respectively.
Table 4: Critical parameters of water as per IS: 10500(1991)
SL.
No
Parameter (mg/l)
Desirable limit
Permissible limit
Number of samples exceeding Permissible limits
Percentage of samples Exceeding the Permissible limits.
Pre monsoon
Post monsoon
Pre monsoon
Post monsoon
1
Iron
0.3
1
10
0
25
0
2
Nickel
0.02
No relaxation
38
2
95
5
3
Lead
0.05
No relaxation
0
40
0
100
4
Zinc
5
15
2
0
5
0
5
Copper
0.05
1.5
0
0
0
0
6
Cadmium
0.001
No relaxation
35
1
87.5
2.5
7
Arsenic
0.05
No relaxation
4
0
10
0
8
Chromium
0.05
No relaxation
10
6
25
15
-
Iron : Iron has adverse effect on domestic uses of water and water supply structures, and promotes iron bacteria which forns brown slimy layer in pipes. In most of the surface water samples Iron value is very high, hence use of water with high iron will cause adverse effects like unpleasant metallic taste ,warding of fatigue and anemia.
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Copper : Beyond the desirable limit Copper causes a stringent taste, discoloration of water and corrosion of pipes, fittings and utensils. Too much copper can cause adverse ill effects, including vomiting, diarrhea, stomach cramps and nausea. It is also be en associated with liver damage and kidney disease.
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Nickel :. Beyond the permissible limit Nickel may cause allergic reaction. Exposure to skin can cause dermatitis upon contact.
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Lead : Beyond the permissible limit , Lead makes water toxic. Lead is associated with a wide range of effects, including various neuro developmental effects, mortality (mainly due to cardiovascular diseases), impaired renal function, hypertension, impaired fertility and adverse pregnancy outcomes. Impaired neurodevelopment in children is generally associated with lower blood lead
concentrations than the other effects,
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Zinc : Beyond the permissible limit Zinc can cause a stringent taste and an opalescence in water. The effects of zinc toxicity are upset stomach, vomiting and diarrhea .
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Cadmium : Beyond the permissible limit , Cadmium makes water toxic. With chronic oral exposure it effects the kidney .
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Arsenic : Beyond the permissible limit , Arsenic makes the water toxic. Long term exposure to arsenic in drinking water can cause cancer in the skin , lungs, bladder and kidney. It can also cause skin changes such as thickening and pigmentation.
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Chromium :Beyond the permissible limit Chromium makes water toxic. Too much exposure can be hazardous causing nose irritation that results in runny nose, nose bleeds, ulcers, open sores around the stomach lining and nasal symptoms.
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CONCLUSIONS
The analyses of groundwater and the surface water samples from the Peenya industrial area has shown that almost 90% of the samples are unfit for drinking purpose. The analyzed data clearly indicates that the Pb is generally present in GW samples due to plumbing accessories and industrial waste. At few locations, Cu, Cr, Fe and Cd concentrations could be high due to disposal of electroplating and dye industrial waste. Groundwater is getting polluted at an alarming rate due to rapid industrialization. The investigations and oral discussions held with the health centre officials and general public of the area, clearly points out that the serious contamination of the groundwater and surface water in the vicinity of the industries and ill-health faced by the localities. From the perspective of improving the quality of groundwater and surface water in the area and protecting the people from the troubles of groundwater and surface water contamination, it is absolutely essential to initiate measures to check the pollution of industrial effluents through strict enforcement of legislation for industries, setting up of effluent treatment plants. Replacing of the damaged pipelines and repairing lining of sewers is necessary to prevent the leakage of sewage in pipes and seepage through unlined channels and to prevent the mixing or leaking of sewage with groundwater. Water treatment facility shall be designed in order to provide potable water to the residents of the area. This study is carried out during pre monsoon season. Further this study can also carried out during monsoon also.
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REFERENCES
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[7].Purandara, B. K., & Varadarajan, N. (2003). Impacts on Groundwater Quality by Urbanization. Journal of Indian Water Resources Society, 23, 107115. [8].Ramasesha, C. S. (2005). Proceedings, Water quality and health, National Conference on Groundwater pollution sources and mitigation, Bangalore. [9]. Ramesh et al,. (2012), Assessment of Ground Water Quality in Designated Peenya Industrial Area and Estate, Bangalore, India A Case StudyIJEP Vol. 2 Iss. 6 PP. 21-25 [10]. Shankar, B.S (2008), Impact of industrialization on groundwater quality–a case study of Peenya industrial area, Bangalore, India, ,. Environ Monit Assess. Jul;142(1-3):263-8. Epub 2007 Sep 25. [11].Shiva Kumar and Srikantaswamy(2012), seasonal variation of heavy metal in industrial zone soil of mysore city, karnataka, india, International Journal of Basic and Applied Chemical Sciences ISSN: 2277-2073 (Online).