Vegetable Gardens
Vegetable Gardens
Augusta Forestry Center Bill Berti and Dean Cocking South River Science Team June 15, 2004
Vegetable Garden Study Objective – Determine if soil-Hg is taken-up by vegetables at concentrations sufficient to be a health risk
June 15, 2004
2
Augusta Forestry Center – Crimora, VA South River
June 15, 2004
3
Floodplain Garden
Control Garden (off view to right) June 15, 2004
4
Floodplain garden soil samples Nov 23, 2003 mg Hg/kg soil, dry weight basis
31 32 33 34 35 36 37 38 39 40
20.2 19.7 31.2 48.3 68.9 56.2 55.1 54.6 43.1 32.9
21 22 23 24 25 26 27 28 29 30
5.93 4.22 8.38 9.58 37.1 45.6 51.4 62.6 65.1 61.4
11 12 13 14 15 16 17 18 19 20
14.7 18.3 13.8 20.3 39.6 56.3 57.5 58.8 78.3 57.9
50 ft
1 2 3 4 5 6 7 8 9 10
19.4 35.1 33.3 44.6 45.6 55.8 56.7 48.1 61.6 67.9
June 15, 2004
Soil Hg, mg/kg
1 to 10 11 to 20 21 to 30 31 to 40 41 to 50 51 to 60 > 60 Mean value, n = 2 5
Floodplain garden was blocked (1,2,3 & 4) according to soil [Hg] Note: Figure rotated 90o counterclockwise
2E
1D
2B
2I
Plot F1 19.4
Plot F2 35.1
Plot F3 33.3
Plot F4 44.6
2C
3D
3F
3H
4B
4E
Plot F5 45.6
Plot F6 55.8
Plot F7 56.7
Plot F8 48.1
Plot F9 61.6
Plot F10 67.9
4A
1H
1I
1F
2A
2J
3G
4J
4H
4I
Plot F11 14.7
Plot F12 18.3
Plot F13 13.8
Plot F14 20.3
Plot F15 39.6
Plot F16 56.3
Plot F17 57.5
Plot F18 58.8
Plot F19 78.3
Plot F20 57.9
1B
1E
1A
1C
2D
3E
3A
4D
4G
4C
Plot F21 5.93
Plot F22 4.22
Plot F23 8.38
Plot F24 9.58
Plot F25 37.1
Plot F26 45.6
Plot F27 51.4
Plot F28 62.6
Plot F29 65.1
Plot F30 61.4
1G
1J
2H
3J
4F
3B
3I
3C
2G
2F
Plot F31 20.2
Plot F32 19.7
Plot F33 31.2
Plot F34 48.3
Plot F35 68.9
Plot F36 56.2
Plot F37 55.1
Plot F38 54.6
Plot F39 43.1
Plot F40 32.9
June 15, 2004
A B C D E F G H I J
Potato Turnips and Beets Peppers and cauliflower Cabbage Onions Squash Radish and carrots Tomato Spinach and lettuce Bush Peas and Bush Bean
Plots in 4 x 10 Randomized Complete Block design with some plots containing two species 6
Floodplain Garden 6 -June - 2004
June 15, 2004
7
Control garden soil samples Nov 23, 2003 µg Hg/g soil, dry weight basis 1
0.162†
Soil Hg, ug/g
2
Augusta Forestry Center Bill Berti and Dean Cocking South River Science Team June 15, 2004
Vegetable Garden Study Objective – Determine if soil-Hg is taken-up by vegetables at concentrations sufficient to be a health risk
June 15, 2004
2
Augusta Forestry Center – Crimora, VA South River
June 15, 2004
3
Floodplain Garden
Control Garden (off view to right) June 15, 2004
4
Floodplain garden soil samples Nov 23, 2003 mg Hg/kg soil, dry weight basis
31 32 33 34 35 36 37 38 39 40
20.2 19.7 31.2 48.3 68.9 56.2 55.1 54.6 43.1 32.9
21 22 23 24 25 26 27 28 29 30
5.93 4.22 8.38 9.58 37.1 45.6 51.4 62.6 65.1 61.4
11 12 13 14 15 16 17 18 19 20
14.7 18.3 13.8 20.3 39.6 56.3 57.5 58.8 78.3 57.9
50 ft
1 2 3 4 5 6 7 8 9 10
19.4 35.1 33.3 44.6 45.6 55.8 56.7 48.1 61.6 67.9
June 15, 2004
Soil Hg, mg/kg
1 to 10 11 to 20 21 to 30 31 to 40 41 to 50 51 to 60 > 60 Mean value, n = 2 5
Floodplain garden was blocked (1,2,3 & 4) according to soil [Hg] Note: Figure rotated 90o counterclockwise
2E
1D
2B
2I
Plot F1 19.4
Plot F2 35.1
Plot F3 33.3
Plot F4 44.6
2C
3D
3F
3H
4B
4E
Plot F5 45.6
Plot F6 55.8
Plot F7 56.7
Plot F8 48.1
Plot F9 61.6
Plot F10 67.9
4A
1H
1I
1F
2A
2J
3G
4J
4H
4I
Plot F11 14.7
Plot F12 18.3
Plot F13 13.8
Plot F14 20.3
Plot F15 39.6
Plot F16 56.3
Plot F17 57.5
Plot F18 58.8
Plot F19 78.3
Plot F20 57.9
1B
1E
1A
1C
2D
3E
3A
4D
4G
4C
Plot F21 5.93
Plot F22 4.22
Plot F23 8.38
Plot F24 9.58
Plot F25 37.1
Plot F26 45.6
Plot F27 51.4
Plot F28 62.6
Plot F29 65.1
Plot F30 61.4
1G
1J
2H
3J
4F
3B
3I
3C
2G
2F
Plot F31 20.2
Plot F32 19.7
Plot F33 31.2
Plot F34 48.3
Plot F35 68.9
Plot F36 56.2
Plot F37 55.1
Plot F38 54.6
Plot F39 43.1
Plot F40 32.9
June 15, 2004
A B C D E F G H I J
Potato Turnips and Beets Peppers and cauliflower Cabbage Onions Squash Radish and carrots Tomato Spinach and lettuce Bush Peas and Bush Bean
Plots in 4 x 10 Randomized Complete Block design with some plots containing two species 6
Floodplain Garden 6 -June - 2004
June 15, 2004
7
Control garden soil samples Nov 23, 2003 µg Hg/g soil, dry weight basis 1
0.162†
Soil Hg, ug/g
2
