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char = ;code = 32
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char = r;code = 114
char = y;code = 121
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char = r;code = 114
char = d;code = 100
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
char = t;code = 116
char = e;code = 101
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char = w;code = 119
char = a;code = 97
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char = e;code = 101
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char = r;code = 114
char = e;code = 101
char = l;code = 108
char = e;code = 101
char = a;code = 97
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char = e;code = 101
char = d;code = 100
char = ;code = 32
char = f;code = 102
char = r;code = 114
char = o;code = 111
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char = n;code = 110
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char = ;code = 32
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char = l;code = 108
char = i;code = 105
char = n;code = 110
char = i;code = 105
char = c;code = 99
char = s;code = 115
char = .;code = 46
result sql = The mercury burden in waste water released from dental clinics.
The mercury burden in waste water released from dental clinics.
char = T;code = 84
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char = e;code = 101
char = ;code = 32
char = a;code = 97
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char = m;code = 109
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char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = u;code = 117
char = d;code = 100
char = y;code = 121
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char = w;code = 119
char = a;code = 97
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char = t;code = 116
char = o;code = 111
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char = e;code = 101
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char = t;code = 116
char = i;code = 105
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char = t;code = 116
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char = m;code = 109
char = e;code = 101
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char = c;code = 99
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char = u;code = 117
char = r;code = 114
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char = e;code = 101
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char = n;code = 110
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char = a;code = 97
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char = a;code = 97
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char = e;code = 101
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char = m;code = 109
char = p;code = 112
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char = o;code = 111
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char = d;code = 100
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char = e;code = 101
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char = o;code = 111
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char = d;code = 100
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char = 2;code = 50
char = 7;code = 55
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char = ;code = 32
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char = i;code = 105
char = n;code = 110
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char = c;code = 99
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char = ;code = 32
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = ;code = 32
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char = a;code = 97
char = m;code = 109
char = p;code = 112
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char = e;code = 101
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char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
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char = s;code = 115
char = u;code = 117
char = b;code = 98
char = j;code = 106
char = e;code = 101
char = c;code = 99
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char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = a;code = 97
char = u;code = 117
char = t;code = 116
char = h;code = 104
char = o;code = 111
char = r;code = 114
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char = z;code = 122
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char = a;code = 97
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char = y;code = 121
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char = i;code = 105
char = s;code = 115
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char = u;code = 117
char = s;code = 115
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char = n;code = 110
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char = h;code = 104
char = e;code = 101
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char = t;code = 116
char = e;code = 101
char = c;code = 99
char = h;code = 104
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char = q;code = 113
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char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = Q;code = 81
char = S;code = 83
char = -;code = 45
char = I;code = 73
char = E;code = 69
char = ;code = 32
char = E;code = 69
char = n;code = 110
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char = a;code = 97
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char = d;code = 100
char = ;code = 32
char = C;code = 67
char = o;code = 111
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char = d;code = 100
char = ;code = 32
char = V;code = 86
char = a;code = 97
char = p;code = 112
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char = r;code = 114
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char = M;code = 77
char = e;code = 101
char = r;code = 114
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char = e;code = 101
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char = t;code = 116
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char = i;code = 105
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char = t;code = 116
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char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
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char = o;code = 111
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char = ;code = 32
char = m;code = 109
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char = r;code = 114
char = c;code = 99
char = u;code = 117
char = r;code = 114
char = y;code = 121
char = ;code = 32
char = d;code = 100
char = i;code = 105
char = s;code = 115
char = c;code = 99
char = h;code = 104
char = a;code = 97
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char = g;code = 103
char = e;code = 101
char = d;code = 100
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = e;code = 101
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char = m;code = 109
char = e;code = 101
char = a;code = 97
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char = v;code = 118
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char = e;code = 101
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char = o;code = 111
char = f;code = 102
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = r;code = 114
char = c;code = 99
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char = r;code = 114
char = y;code = 121
char = ;code = 32
char = d;code = 100
char = i;code = 105
char = s;code = 115
char = c;code = 99
char = h;code = 104
char = a;code = 97
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char = g;code = 103
char = e;code = 101
char = d;code = 100
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char = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = 2;code = 50
char = .;code = 46
char = 4;code = 52
char = 9;code = 57
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char = t;code = 116
char = s;code = 115
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char = p;code = 112
char = e;code = 101
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char = ;code = 32
char = b;code = 98
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char = l;code = 108
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char = (;code = 40
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char = r;code = 114
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char = c;code = 99
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char = s;code = 115
char = ;code = 32
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char = p;code = 112
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char = ;code = 32
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char = t;code = 116
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char = a;code = 97
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char = a;code = 97
char = l;code = 108
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char = a;code = 97
char = m;code = 109
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char = s;code = 115
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char = p;code = 112
char = a;code = 97
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = o;code = 111
char = r;code = 114
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = 9;code = 57
char = 4;code = 52
char = .;code = 46
char = 7;code = 55
char = 5;code = 53
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char = p;code = 112
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char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
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char = h;code = 104
char = e;code = 101
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char = c;code = 99
char = l;code = 108
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char = n;code = 110
char = i;code = 105
char = c;code = 99
char = s;code = 115
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char = t;code = 116
char = h;code = 104
char = o;code = 111
char = u;code = 117
char = t;code = 116
char = ;code = 32
char = a;code = 97
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char = g;code = 103
char = a;code = 97
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char = p;code = 112
char = a;code = 97
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char = a;code = 97
char = t;code = 116
char = o;code = 111
char = r;code = 114
char = s;code = 115
char = .;code = 46
char = ;code = 32
char = S;code = 83
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char = e;code = 101
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char = o;code = 111
char = f;code = 102
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char = l;code = 108
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char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = p;code = 112
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = v;code = 118
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = a;code = 97
char = m;code = 109
char = a;code = 97
char = l;code = 108
char = g;code = 103
char = a;code = 97
char = m;code = 109
char = -;code = 45
char = s;code = 115
char = e;code = 101
char = p;code = 112
char = a;code = 97
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = a;code = 97
char = p;code = 112
char = p;code = 112
char = a;code = 97
char = r;code = 114
char = a;code = 97
char = t;code = 116
char = u;code = 117
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = c;code = 99
char = l;code = 108
char = i;code = 105
char = n;code = 110
char = i;code = 105
char = c;code = 99
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = c;code = 99
char = o;code = 111
char = m;code = 109
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = d;code = 100
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = s;code = 115
char = o;code = 111
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = d;code = 100
char = u;code = 117
char = c;code = 99
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = r;code = 114
char = a;code = 97
char = b;code = 98
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = d;code = 100
char = i;code = 105
char = s;code = 115
char = c;code = 99
char = h;code = 104
char = a;code = 97
char = r;code = 114
char = g;code = 103
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = r;code = 114
char = c;code = 99
char = u;code = 117
char = r;code = 114
char = y;code = 121
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = t;code = 116
char = e;code = 101
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char = <;code = 60
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result sql = The aim of this study was to estimate mercury burden in waste water samples collected during one working day in 27 dental clinics. The samples were subjected to authorized analysis using the technique of QS-IE Enhanced Cold Vapour Mercury Analyzer to estimate the amount of mercury discharged. The mean value of mercury discharged was 2.49 parts per billion (ppb) for the clinics equipped with amalgam separators and 94.75 ppb for the clinics without amalgam separators. Some of the small amalgam particles released when new fillings are placed or during removal of old restorations form a sediment in tubes and drains. The remaining particles are carried with the waste water stream to the local purifying plant. If threshold values for heavy metal content including mercury are exceeded, the sludge is not allowed to be recycled as fertiliser. Installation of an approved amalgam-separating apparatus in dental clinics is recommended so as to reduce considerably the discharge of mercury into waste water.

Publication: SADJ 2002 Jun ;57(6)::213-5.
Publication Date: 2002 Jun
Study Author(s): al-Shraideh, M;al-Wahadni, A;Khasawneh, S;al-Shraideh, M J;
Institution: Department of Allied Dental Sciences, Jordan University of Science and Technology, PO Box 3030, Irbid-Jordan.
Shortcut link to this study:
The aim of this study was to estimate mercury burden in waste water samples collected during one working day in 27 dental clinics. The samples were subjected to authorized analysis using the technique of QS-IE Enhanced Cold Vapour Mercury Analyzer to estimate the amount of mercury discharged. The mean value of mercury discharged was 2.49 parts per billion (ppb) for the clinics equipped with amalgam separators and 94.75 ppb for the clinics without amalgam separators. Some of the small amalgam particles released when new fillings are placed or during removal of old restorations form a sediment in tubes and drains. The remaining particles are carried with the waste water stream to the local purifying plant. If threshold values for heavy metal content including mercury are exceeded, the sludge is not allowed to be recycled as fertiliser. Installation of an approved amalgam-separating apparatus in dental clinics is recommended so as to reduce considerably the discharge of mercury into waste water.
PMID: 12229075

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