Fighting against POLLUTION to Save Environment

  • Fighting against POLLUTION to Save Environment

Fighting against POLLUTION to Save Environment

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List of Publications of Dr. Dilip Boralkar

Autoexhaust lead pollution of roadside ecosystem in Delhi (Part II):

Proc. Int. Conference on Environment Planning & Management, University of Roorkee (India),
April 5-7, 1990, pp. 204 – 210.

D.B. Boralkar, S.K. Tyagi** and B. Sengupta
West Zone Office,Central Pollution Control Board 46-B, Gautamnager, VADODARA,390 OO7,India
**Central Pollution Control Board, "Parivesh Bhavan" East Arjun Nagar, DELHI, 110 032, India

Table 3: Lead in Plants (micrograms/g, dry wt.) of different species and locations

Sr. No. Location Alstonia Eugenia Polyalthia Populus Putranjiva
May '86 Sept. '86 May '86 Sept. '86 May '86 Sept. '86 Dec. '86 Apr. '87 Dec. '86 Apr. '87 Dec. '86 Apr. '87
01 Delhi Gate 20 29 22 35 23 36 27 38 14 25 22 41
02 India Gate 17 24 11 24 8 23 58 82 13 20 33 50
03 Ashram 26 27 30 36 26 36 35 103 18 26 39 45
04 Azadpur 16 21 23 34 18 26 29 42 21 32 41 61
05 N.P.L. Nursery 12 14 9 13 6 10 16 28 10 13 19 30

Table 4: Growth performance of plants (total leaf area, m²/ plant and biomass / plant, g, dry wt.) of different species and locations

Sr. No. Location Alstonia Eugenia Polyalthia Populus Putranjiva
M S M S M S D A D A D A
01 Delhi Gate LA: 14.0 25.5 4.6 30.9 5.2 11.7 3.0 2.1 15.5 2.4 15.0 5.0
BM: 23.1 45.8 24.5 45.0 17.0 44.2 28.0 29.0 19.3 23.6 30.9 11.9
02 India Gate LA: 10.6 38.5 5.5 17.3 4.4 23.1 3.7 2.3 16.6 5.4 15.2 2.3
BM: 26.9 54.2 28.9 57.7 18.4 28.3 27.0 37.4 13.9 20.5 18.8 19.3
03 Ashram LA: 17.7 17.8 7.7 15.6 4.5 24.7 3.6 2.4 11.4 3.6 15.2 2.1
BM: 31.2 64.3 30.1 69.1 17.3 50.8 30.7 41.1 14.2 22.9 30.6 16.2
04 Azadpur LA: 10.1 26.6 7.8 16.7 4.4 19.2 3.5 2.8 14.7 5.9 12.5 4.9
BM: 29.5 60.6 30.4 67.2 18.0 49.3 25.4 32.3 21.9 26.4 16.6 20.6
05 N.P.L. Nursery LA: 17.8 38.5 15.5 39.5 5.5 25.5 5.3 3.2 23.6 7.2 15.8 6.4
BM: 36.7 74.4 45.4 74.2 21.1 58.4 35.8 48.0 30.6 41.1 40.3 27.9

M: May, 1986    D: December, 1986    LA: Leaf Area
S: September, 1986    A: April, 1987    BM: Biomass

Table 5: Lead Pollution Tolerance Index (LPTI) of Plant species at different traffic intersections

Plant Species Delhi Gate India Gate Ashram Azadpur
Alstonia May,1986 62
September,1986 25		 48
79		 88
65		 61
79
Eugenia May,1986 64
September,1986 80		 45
64		 102
92		 90
94
Polyalthia May,1986 128
September,1986 105
December,1987 63
April,1987 54		 58
87
104
89		 125
116
75
125		 108
98
59
53
Populus December,1986 50
April,1987 61		 36
53		 51
57		 65
75
Putranjiva December,1986 55
April,1987 43		 55
50		 76
40		 64
62
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