char = I;code = 73 char = n;code = 110 char = f;code = 102 char = l;code = 108 char = u;code = 117 char = e;code = 101 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = n;code = 110 char = a;code = 97 char = t;code = 116 char = u;code = 117 char = r;code = 114 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = d;code = 100 char = i;code = 105 char = s;code = 115 char = s;code = 115 char = o;code = 111 char = l;code = 108 char = v;code = 118 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = o;code = 111 char = r;code = 114 char = g;code = 103 char = a;code = 97 char = n;code = 110 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = c;code = 99 char = a;code = 97 char = r;code = 114 char = b;code = 98 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = b;code = 98 char = i;code = 105 char = o;code = 111 char = a;code = 97 char = v;code = 118 char = a;code = 97 char = i;code = 105 char = l;code = 108 char = a;code = 97 char = b;code = 98 char = i;code = 105 char = l;code = 108 char = i;code = 105 char = t;code = 116 char = y;code = 121 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 = t;code = 116 char = o;code = 111 char = ;code = 32 char = a;code = 97 char = ;code = 32 char = f;code = 102 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = h;code = 104 char = w;code = 119 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = a;code = 97 char = l;code = 108 char = g;code = 103 char = a;code = 97 char = .;code = 46 result sql = Influence of natural dissolved organic carbon on the bioavailability of mercury to a freshwater alga.
Influence of natural dissolved organic carbon on the bioavailability of mercury to a freshwater alga.char = B;code = 66 char = i;code = 105 char = o;code = 111 char = a;code = 97 char = v;code = 118 char = a;code = 97 char = i;code = 105 char = l;code = 108 char = a;code = 97 char = b;code = 98 char = i;code = 105 char = l;code = 108 char = i;code = 105 char = t;code = 116 char = y;code = 121 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 = (;code = 40 char = H;code = 72 char = g;code = 103 char = );code = 41 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = S;code = 83 char = e;code = 101 char = l;code = 108 char = e;code = 101 char = n;code = 110 char = a;code = 97 char = s;code = 115 char = t;code = 116 char = r;code = 114 char = u;code = 117 char = m;code = 109 char = ;code = 32 char = c;code = 99 char = a;code = 97 char = p;code = 112 char = r;code = 114 char = i;code = 105 char = c;code = 99 char = o;code = 111 char = r;code = 114 char = n;code = 110 char = u;code = 117 char = t;code = 116 char = u;code = 117 char = m;code = 109 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = s;code = 115 char = s;code = 115 char = e;code = 101 char = s;code = 115 char = s;code = 115 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = b;code = 98 char = i;code = 105 char = o;code = 111 char = a;code = 97 char = s;code = 115 char = s;code = 115 char = a;code = 97 char = y;code = 121 char = s;code = 115 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = t;code = 116 char = a;code = 97 char = i;code = 105 char = n;code = 110 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = f;code = 102 char = i;code = 105 char = e;code = 101 char = l;code = 108 char = d;code = 100 char = -;code = 45 char = c;code = 99 char = o;code = 111 char = l;code = 108 char = l;code = 108 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = f;code = 102 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = h;code = 104 char = w;code = 119 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = v;code = 118 char = a;code = 97 char = r;code = 114 char = y;code = 121 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = d;code = 100 char = i;code = 105 char = s;code = 115 char = s;code = 115 char = o;code = 111 char = l;code = 108 char = v;code = 118 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = o;code = 111 char = r;code = 114 char = g;code = 103 char = a;code = 97 char = n;code = 110 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = c;code = 99 char = a;code = 97 char = r;code = 114 char = b;code = 98 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = (;code = 40 char = D;code = 68 char = O;code = 79 char = C;code = 67 char = );code = 41 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = s;code = 115 char = .;code = 46 char = ;code = 32 char = B;code = 66 char = i;code = 105 char = o;code = 111 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = f;code = 102 char = a;code = 97 char = c;code = 99 char = t;code = 116 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = (;code = 40 char = B;code = 66 char = C;code = 67 char = F;code = 70 char = );code = 41 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = m;code = 109 char = e;code = 101 char = a;code = 97 char = s;code = 115 char = u;code = 117 char = r;code = 114 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = u;code = 117 char = s;code = 115 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = s;code = 115 char = t;code = 116 char = a;code = 97 char = b;code = 98 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = i;code = 105 char = s;code = 115 char = o;code = 111 char = t;code = 116 char = o;code = 111 char = p;code = 112 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = m;code = 109 char = e;code = 101 char = t;code = 116 char = h;code = 104 char = y;code = 121 char = l;code = 108 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 = (;code = 40 char = M;code = 77 char = e;code = 101 char = H;code = 72 char = g;code = 103 char = );code = 41 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = o;code = 111 char = r;code = 114 char = g;code = 103 char = a;code = 97 char = n;code = 110 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = H;code = 72 char = g;code = 103 char = (;code = 40 char = I;code = 73 char = I;code = 73 char = );code = 41 char = .;code = 46 char = ;code = 32 char = B;code = 66 char = C;code = 67 char = F;code = 70 char = s;code = 115 char = ;code = 32 char = f;code = 102 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = M;code = 77 char = e;code = 101 char = H;code = 72 char = g;code = 103 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = l;code = 108 char = o;code = 111 char = w;code = 119 char = -;code = 45 char = D;code = 68 char = O;code = 79 char = C;code = 67 char = ;code = 32 char = l;code = 108 char = a;code = 97 char = k;code = 107 char = e;code = 101 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = w;code = 119 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = s;code = 115 char = i;code = 105 char = g;code = 103 char = n;code = 110 char = i;code = 105 char = f;code = 102 char = i;code = 105 char = c;code = 99 char = a;code = 97 char = n;code = 110 char = t;code = 116 char = l;code = 108 char = y;code = 121 char = ;code = 32 char = l;code = 108 char = a;code = 97 char = r;code = 114 char = g;code = 103 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = a;code = 97 char = n;code = 110 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = o;code = 111 char = s;code = 115 char = e;code = 101 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = m;code = 109 char = i;code = 105 char = x;code = 120 char = t;code = 116 char = u;code = 117 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = l;code = 108 char = a;code = 97 char = k;code = 107 char = e;code = 101 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = h;code = 104 char = i;code = 105 char = g;code = 103 char = h;code = 104 char = -;code = 45 char = D;code = 68 char = O;code = 79 char = C;code = 67 char = ;code = 32 char = r;code = 114 char = i;code = 105 char = v;code = 118 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = .;code = 46 char = ;code = 32 char = T;code = 84 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = B;code = 66 char = C;code = 67 char = F;code = 70 char = ;code = 32 char = f;code = 102 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = M;code = 77 char = e;code = 101 char = H;code = 72 char = g;code = 103 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = r;code = 114 char = a;code = 97 char = i;code = 105 char = n;code = 110 char = w;code = 119 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = (;code = 40 char = l;code = 108 char = o;code = 111 char = w;code = 119 char = e;code = 101 char = s;code = 115 char = t;code = 116 char = ;code = 32 char = D;code = 68 char = O;code = 79 char = C;code = 67 char = );code = 41 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = l;code = 108 char = a;code = 97 char = r;code = 114 char = g;code = 103 char = e;code = 101 char = s;code = 115 char = t;code = 116 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = y;code = 121 char = ;code = 32 char = t;code = 116 char = r;code = 114 char = e;code = 101 char = a;code = 97 char = t;code = 116 char = m;code = 109 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = .;code = 46 char = ;code = 32 char = R;code = 82 char = a;code = 97 char = i;code = 105 char = n;code = 110 char = w;code = 119 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = l;code = 108 char = a;code = 97 char = k;code = 107 char = e;code = 101 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = a;code = 97 char = l;code = 108 char = s;code = 115 char = o;code = 111 char = ;code = 32 char = h;code = 104 char = a;code = 97 char = d;code = 100 char = ;code = 32 char = l;code = 108 char = a;code = 97 char = r;code = 114 char = g;code = 103 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = B;code = 66 char = C;code = 67 char = F;code = 70 char = s;code = 115 char = ;code = 32 char = f;code = 102 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = H;code = 72 char = g;code = 103 char = (;code = 40 char = I;code = 73 char = I;code = 73 char = );code = 41 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = a;code = 97 char = n;code = 110 char = ;code = 32 char = r;code = 114 char = i;code = 105 char = v;code = 118 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = .;code = 46 char = ;code = 32 char = M;code = 77 char = o;code = 111 char = r;code = 114 char = e;code = 101 char = o;code = 111 char = v;code = 118 char = e;code = 101 char = r;code = 114 char = ,;code = 44 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = f;code = 102 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = h;code = 104 char = w;code = 119 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = l;code = 108 char = l;code = 108 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = f;code = 102 char = r;code = 114 char = o;code = 111 char = m;code = 109 char = ;code = 32 char = s;code = 115 char = e;code = 101 char = v;code = 118 char = e;code = 101 char = r;code = 114 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = U;code = 85 char = S;code = 83 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = C;code = 67 char = a;code = 97 char = n;code = 110 char = a;code = 97 char = d;code = 100 char = i;code = 105 char = a;code = 97 char = n;code = 110 char = ;code = 32 char = f;code = 102 char = i;code = 105 char = e;code = 101 char = l;code = 108 char = d;code = 100 char = ;code = 32 char = s;code = 115 char = i;code = 105 char = t;code = 116 char = e;code = 101 char = s;code = 115 char = ,;code = 44 char = ;code = 32 char = B;code = 66 char = C;code = 67 char = F;code = 70 char = s;code = 115 char = ;code = 32 char = f;code = 102 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = H;code = 72 char = g;code = 103 char = (;code = 40 char = I;code = 73 char = I;code = 73 char = );code = 41 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = M;code = 77 char = e;code = 101 char = H;code = 72 char = g;code = 103 char = ;code = 32 char = w;code = 119 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = l;code = 108 char = o;code = 111 char = w;code = 119 char = ;code = 32 char = w;code = 119 char = h;code = 104 char = e;code = 101 char = n;code = 110 char = ;code = 32 char = D;code = 68 char = O;code = 79 char = C;code = 67 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = s;code = 115 char = ;code = 32 char = w;code = 119 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = >;code = 62 char = 5;code = 53 char = m;code = 109 char = g;code = 103 char = ;code = 32 char = L;code = 76 char = (;code = 40 char = -;code = 45 char = 1;code = 49 char = );code = 41 char = .;code = 46 char = ;code = 32 char = T;code = 84 char = h;code = 104 char = e;code = 101 char = s;code = 115 char = e;code = 101 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = u;code = 117 char = l;code = 108 char = t;code = 116 char = s;code = 115 char = ;code = 32 char = s;code = 115 char = u;code = 117 char = g;code = 103 char = g;code = 103 char = e;code = 101 char = s;code = 115 char = t;code = 116 char = ;code = 32 char = h;code = 104 char = i;code = 105 char = g;code = 103 char = h;code = 104 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = s;code = 115 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = D;code = 68 char = O;code = 79 char = C;code = 67 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = h;code = 104 char = i;code = 105 char = b;code = 98 char = i;code = 105 char = t;code = 116 char = ;code = 32 char = b;code = 98 char = i;code = 105 char = o;code = 111 char = a;code = 97 char = v;code = 118 char = a;code = 97 char = i;code = 105 char = l;code = 108 char = a;code = 97 char = b;code = 98 char = i;code = 105 char = l;code = 108 char = i;code = 105 char = t;code = 116 char = y;code = 121 char = ,;code = 44 char = ;code = 32 char = w;code = 119 char = h;code = 104 char = i;code = 105 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = l;code = 108 char = o;code = 111 char = w;code = 119 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = s;code = 115 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = y;code = 121 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = o;code = 111 char = v;code = 118 char = i;code = 105 char = d;code = 100 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = p;code = 112 char = t;code = 116 char = i;code = 105 char = m;code = 109 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = d;code = 100 char = i;code = 105 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = s;code = 115 char = ;code = 32 char = f;code = 102 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = a;code = 97 char = l;code = 108 char = g;code = 103 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = u;code = 117 char = p;code = 112 char = t;code = 116 char = a;code = 97 char = k;code = 107 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = H;code = 72 char = g;code = 103 char = .;code = 46 char = ;code = 32 char = H;code = 72 char = o;code = 111 char = w;code = 119 char = e;code = 101 char = v;code = 118 char = e;code = 101 char = r;code = 114 char = ,;code = 44 char = ;code = 32 char = v;code = 118 char = a;code = 97 char = r;code = 114 char = i;code = 105 char = a;code = 97 char = b;code = 98 char = i;code = 105 char = l;code = 108 char = i;code = 105 char = t;code = 116 char = y;code = 121 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = B;code = 66 char = C;code = 67 char = F;code = 70 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = t;code = 116 char = ;code = 32 char = l;code = 108 char = o;code = 111 char = w;code = 119 char = ;code = 32 char = D;code = 68 char = O;code = 79 char = C;code = 67 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = d;code = 100 char = i;code = 105 char = c;code = 99 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = a;code = 97 char = t;code = 116 char = ;code = 32 char = D;code = 68 char = O;code = 79 char = C;code = 67 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = m;code = 109 char = p;code = 112 char = o;code = 111 char = s;code = 115 char = i;code = 105 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = o;code = 111 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = l;code = 108 char = i;code = 105 char = g;code = 103 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = s;code = 115 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = y;code = 121 char = ;code = 32 char = d;code = 100 char = e;code = 101 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = m;code = 109 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = s;code = 115 char = i;code = 105 char = t;code = 116 char = e;code = 101 char = -;code = 45 char = s;code = 115 char = p;code = 112 char = e;code = 101 char = c;code = 99 char = i;code = 105 char = f;code = 102 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = b;code = 98 char = i;code = 105 char = o;code = 111 char = a;code = 97 char = v;code = 118 char = a;code = 97 char = i;code = 105 char = l;code = 108 char = a;code = 97 char = b;code = 98 char = i;code = 105 char = l;code = 108 char = i;code = 105 char = t;code = 116 char = y;code = 121 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = H;code = 72 char = g;code = 103 char = .;code = 46 char = <;code = 60 char = b;code = 98 char = r;code = 114 char = /;code = 47 char = >;code = 62 result sql = Bioavailability of mercury (Hg) to Selenastrum capricornutum was assessed in bioassays containing field-collected freshwater of varying dissolved organic carbon (DOC) concentrations. Bioconcentration factor (BCF) was measured using stable isotopes of methylmercury (MeHg) and inorganic Hg(II). BCFs for MeHg in low-DOC lake water were significantly larger than those in mixtures of lake water and high-DOC river water. The BCF for MeHg in rainwater (lowest DOC) was the largest of any treatment. Rainwater and lake water also had larger BCFs for Hg(II) than river water. Moreover, in freshwater collected from several US and Canadian field sites, BCFs for Hg(II) and MeHg were low when DOC concentrations were >5mg L(-1). These results suggest high concentrations of DOC inhibit bioavailability, while low concentrations may provide optimal conditions for algal uptake of Hg. However, variability of BCFs at low DOC indicates that DOC composition or other ligands may determine site-specific bioavailability of Hg.
Publication: Environ. Pollut. 2008 Jul ;154(1)::116-23. :doi: 10.1016/j.envpol.2007.12.004.
Publication Date: 2008 Jul
Study Author(s): Gorski, P R;Armstrong, D E;Hurley, J P;Krabbenhoft, D P;
Institution: Limnology and Marine Sciences Program, University of Wisconsin-Madison, Madison, WI, USA.
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Bioavailability of mercury (Hg) to Selenastrum capricornutum was assessed in bioassays containing field-collected freshwater of varying dissolved organic carbon (DOC) concentrations. Bioconcentration factor (BCF) was measured using stable isotopes of methylmercury (MeHg) and inorganic Hg(II). BCFs for MeHg in low-DOC lake water were significantly larger than those in mixtures of lake water and high-DOC river water. The BCF for MeHg in rainwater (lowest DOC) was the largest of any treatment. Rainwater and lake water also had larger BCFs for Hg(II) than river water. Moreover, in freshwater collected from several US and Canadian field sites, BCFs for Hg(II) and MeHg were low when DOC concentrations were >5mg L(-1). These results suggest high concentrations of DOC inhibit bioavailability, while low concentrations may provide optimal conditions for algal uptake of Hg. However, variability of BCFs at low DOC indicates that DOC composition or other ligands may determine site-specific bioavailability of Hg.