step m_Ca m_Mg m_Na umol_As pH mmol_sorbedAs 1 4.6256e-01 1.6385e-01 5.4020e+00 2.5000e-02 5.7204e+00 0.0000e+00 1 3.3952e-04 2.8361e-04 9.8901e-02 6.9283e-04 7.1612e+00 1.8508e+00 2 2.8743e-05 2.0924e-05 2.4018e-02 7.7786e-02 8.6174e+00 1.8507e+00 3 1.4707e-05 9.6112e-06 1.4378e-02 6.0780e-01 9.1603e+00 1.8501e+00 4 1.2777e-05 8.0708e-06 1.2262e-02 1.0679e+00 9.3114e+00 1.8491e+00 5 1.2370e-05 7.7447e-06 1.1473e-02 1.2573e+00 9.3550e+00 1.8478e+00 6 1.2393e-05 7.7613e-06 1.1090e-02 1.2861e+00 9.3603e+00 1.8465e+00 7 1.2586e-05 7.9125e-06 1.0865e-02 1.2432e+00 9.3502e+00 1.8453e+00 8 1.2858e-05 8.1266e-06 1.0710e-02 1.1733e+00 9.3338e+00 1.8441e+00 9 1.3173e-05 8.3742e-06 1.0588e-02 1.0961e+00 9.3147e+00 1.8430e+00 10 1.3514e-05 8.6428e-06 1.0483e-02 1.0197e+00 9.2945e+00 1.8420e+00 11 1.3875e-05 8.9269e-06 1.0388e-02 9.4708e-01 9.2741e+00 1.8410e+00 12 1.4253e-05 9.2246e-06 1.0300e-02 8.7909e-01 9.2537e+00 1.8402e+00 13 1.4647e-05 9.5351e-06 1.0217e-02 8.1586e-01 9.2333e+00 1.8393e+00 14 1.5058e-05 9.8588e-06 1.0139e-02 7.5715e-01 9.2130e+00 1.8386e+00 15 1.5486e-05 1.0196e-05 1.0064e-02 7.0268e-01 9.1929e+00 1.8379e+00 16 1.5933e-05 1.0548e-05 9.9931e-03 6.5211e-01 9.1728e+00 1.8372e+00 17 1.6399e-05 1.0915e-05 9.9253e-03 6.0514e-01 9.1528e+00 1.8366e+00 18 1.6885e-05 1.1298e-05 9.8605e-03 5.6148e-01 9.1329e+00 1.8361e+00 19 1.7394e-05 1.1698e-05 9.7984e-03 5.2089e-01 9.1130e+00 1.8355e+00 20 1.7925e-05 1.2117e-05 9.7388e-03 4.8313e-01 9.0931e+00 1.8351e+00 21 1.8482e-05 1.2555e-05 9.6816e-03 4.4798e-01 9.0733e+00 1.8346e+00 22 1.9064e-05 1.3014e-05 9.6267e-03 4.1527e-01 9.0534e+00 1.8342e+00 23 1.9675e-05 1.3496e-05 9.5738e-03 3.8480e-01 9.0336e+00 1.8338e+00 24 2.0316e-05 1.4000e-05 9.5229e-03 3.5643e-01 9.0137e+00 1.8335e+00 25 2.0988e-05 1.4530e-05 9.4738e-03 3.3000e-01 8.9937e+00 1.8331e+00 26 2.1695e-05 1.5086e-05 9.4263e-03 3.0538e-01 8.9737e+00 1.8328e+00 27 2.2438e-05 1.5671e-05 9.3805e-03 2.8245e-01 8.9536e+00 1.8325e+00 28 2.3219e-05 1.6287e-05 9.3362e-03 2.6110e-01 8.9335e+00 1.8323e+00 29 2.4042e-05 1.6935e-05 9.2932e-03 2.4122e-01 8.9132e+00 1.8320e+00 30 2.4909e-05 1.7617e-05 9.2515e-03 2.2270e-01 8.8929e+00 1.8318e+00 31 2.5823e-05 1.8337e-05 9.2111e-03 2.0548e-01 8.8724e+00 1.8316e+00 32 2.6788e-05 1.9097e-05 9.1717e-03 1.8944e-01 8.8518e+00 1.8314e+00 33 2.7806e-05 1.9900e-05 9.1334e-03 1.7453e-01 8.8311e+00 1.8312e+00 34 2.8884e-05 2.0748e-05 9.0961e-03 1.6067e-01 8.8102e+00 1.8311e+00 35 3.0023e-05 2.1645e-05 9.0596e-03 1.4779e-01 8.7892e+00 1.8309e+00 36 3.1229e-05 2.2595e-05 9.0239e-03 1.3582e-01 8.7680e+00 1.8308e+00 37 3.2508e-05 2.3602e-05 8.9890e-03 1.2471e-01 8.7466e+00 1.8307e+00 38 3.3864e-05 2.4669e-05 8.9546e-03 1.1441e-01 8.7251e+00 1.8306e+00 39 3.5303e-05 2.5803e-05 8.9209e-03 1.0485e-01 8.7033e+00 1.8305e+00 40 3.6832e-05 2.7006e-05 8.8876e-03 9.6002e-02 8.6813e+00 1.8304e+00 41 3.8458e-05 2.8287e-05 8.8547e-03 8.7806e-02 8.6592e+00 1.8303e+00 42 4.0188e-05 2.9649e-05 8.8222e-03 8.0224e-02 8.6368e+00 1.8302e+00 43 4.2032e-05 3.1101e-05 8.7899e-03 7.3217e-02 8.6141e+00 1.8301e+00 44 4.3998e-05 3.2648e-05 8.7578e-03 6.6745e-02 8.5912e+00 1.8300e+00 45 4.6096e-05 3.4300e-05 8.7257e-03 6.0774e-02 8.5681e+00 1.8300e+00 46 4.8338e-05 3.6065e-05 8.6936e-03 5.5271e-02 8.5447e+00 1.8299e+00 47 5.0735e-05 3.7952e-05 8.6614e-03 5.0203e-02 8.5210e+00 1.8299e+00 48 5.3302e-05 3.9973e-05 8.6290e-03 4.5543e-02 8.4970e+00 1.8298e+00 49 5.6053e-05 4.2138e-05 8.5962e-03 4.1261e-02 8.4727e+00 1.8298e+00 50 5.9004e-05 4.4460e-05 8.5630e-03 3.7331e-02 8.4482e+00 1.8298e+00 51 6.2172e-05 4.6954e-05 8.5292e-03 3.3730e-02 8.4233e+00 1.8297e+00 52 6.5579e-05 4.9635e-05 8.4948e-03 3.0434e-02 8.3981e+00 1.8297e+00 53 6.9245e-05 5.2519e-05 8.4594e-03 2.7421e-02 8.3725e+00 1.8297e+00 54 7.3194e-05 5.5626e-05 8.4231e-03 2.4671e-02 8.3466e+00 1.8296e+00 55 7.7453e-05 5.8977e-05 8.3857e-03 2.2164e-02 8.3204e+00 1.8296e+00 56 8.2051e-05 6.2594e-05 8.3469e-03 1.9883e-02 8.2938e+00 1.8296e+00 57 8.7021e-05 6.6503e-05 8.3065e-03 1.7809e-02 8.2668e+00 1.8296e+00 58 9.2398e-05 7.0732e-05 8.2644e-03 1.5929e-02 8.2395e+00 1.8296e+00 59 9.8221e-05 7.5312e-05 8.2204e-03 1.4225e-02 8.2118e+00 1.8296e+00 60 1.0453e-04 8.0276e-05 8.1742e-03 1.2685e-02 8.1837e+00 1.8295e+00 61 1.1139e-04 8.5662e-05 8.1255e-03 1.1295e-02 8.1552e+00 1.8295e+00 62 1.1883e-04 9.1512e-05 8.0740e-03 1.0043e-02 8.1264e+00 1.8295e+00 63 1.2692e-04 9.7871e-05 8.0194e-03 8.9176e-03 8.0972e+00 1.8295e+00 64 1.3572e-04 1.0479e-04 7.9615e-03 7.9074e-03 8.0676e+00 1.8295e+00 65 1.4531e-04 1.1232e-04 7.8998e-03 7.0025e-03 8.0376e+00 1.8295e+00 66 1.5576e-04 1.2053e-04 7.8339e-03 6.1938e-03 8.0073e+00 1.8295e+00 67 1.6715e-04 1.2947e-04 7.7634e-03 5.4724e-03 7.9767e+00 1.8295e+00 68 1.7957e-04 1.3923e-04 7.6880e-03 4.8303e-03 7.9457e+00 1.8295e+00 69 1.9312e-04 1.4987e-04 7.6070e-03 4.2599e-03 7.9145e+00 1.8295e+00 70 2.0791e-04 1.6148e-04 7.5201e-03 3.7544e-03 7.8829e+00 1.8295e+00 71 2.2405e-04 1.7414e-04 7.4267e-03 3.3072e-03 7.8512e+00 1.8295e+00 72 2.4165e-04 1.8794e-04 7.3263e-03 2.9125e-03 7.8192e+00 1.8295e+00 73 2.6084e-04 2.0298e-04 7.2184e-03 2.5648e-03 7.7871e+00 1.8295e+00 74 2.8173e-04 2.1936e-04 7.1025e-03 2.2592e-03 7.7550e+00 1.8295e+00 75 3.0447e-04 2.3717e-04 6.9780e-03 1.9910e-03 7.7227e+00 1.8295e+00 76 3.2916e-04 2.5651e-04 6.8445e-03 1.7562e-03 7.6906e+00 1.8295e+00 77 3.5593e-04 2.7746e-04 6.7016e-03 1.5510e-03 7.6586e+00 1.8295e+00 78 3.8489e-04 3.0012e-04 6.5490e-03 1.3719e-03 7.6267e+00 1.8295e+00 79 4.1612e-04 3.2455e-04 6.3865e-03 1.2158e-03 7.5952e+00 1.8295e+00 80 4.4921e-04 3.5135e-04 6.2131e-03 1.0797e-03 7.5639e+00 1.8294e+00 81 4.8440e-04 3.8036e-04 6.0296e-03 9.6124e-04 7.5331e+00 1.8294e+00 82 5.2193e-04 4.1133e-04 5.8365e-03 8.5849e-04 7.5029e+00 1.8294e+00 83 5.6173e-04 4.4421e-04 5.6339e-03 7.6947e-04 7.4733e+00 1.8294e+00 84 6.0373e-04 4.7895e-04 5.4226e-03 6.9239e-04 7.4446e+00 1.8294e+00 85 6.4779e-04 5.1543e-04 5.2033e-03 6.2570e-04 7.4168e+00 1.8294e+00 86 6.9375e-04 5.5350e-04 4.9771e-03 5.6799e-04 7.3899e+00 1.8294e+00 87 7.4137e-04 5.9299e-04 4.7452e-03 5.1806e-04 7.3642e+00 1.8294e+00 88 7.9038e-04 6.3365e-04 4.5090e-03 4.7486e-04 7.3395e+00 1.8294e+00 89 8.4047e-04 6.7522e-04 4.2701e-03 4.3745e-04 7.3160e+00 1.8294e+00 90 8.9128e-04 7.1741e-04 4.0300e-03 4.0506e-04 7.2938e+00 1.8294e+00 91 9.4245e-04 7.5991e-04 3.7906e-03 3.7698e-04 7.2728e+00 1.8294e+00 92 9.9360e-04 8.0239e-04 3.5534e-03 3.5262e-04 7.2531e+00 1.8294e+00 93 1.0443e-03 8.4453e-04 3.3202e-03 3.3148e-04 7.2346e+00 1.8294e+00 94 1.0943e-03 8.8602e-04 3.0925e-03 3.1310e-04 7.2174e+00 1.8294e+00 95 1.1431e-03 9.2656e-04 2.8716e-03 2.9711e-04 7.2015e+00 1.8294e+00 96 1.1905e-03 9.6588e-04 2.6589e-03 2.8319e-04 7.1867e+00 1.8294e+00 97 1.2361e-03 1.0038e-03 2.4553e-03 2.7106e-04 7.1731e+00 1.8294e+00 98 1.2799e-03 1.0400e-03 2.2616e-03 2.6046e-04 7.1606e+00 1.8294e+00 99 1.3214e-03 1.0745e-03 2.0784e-03 2.5120e-04 7.1492e+00 1.8294e+00 100 1.3608e-03 1.1070e-03 1.9062e-03 2.4311e-04 7.1388e+00 1.8294e+00 101 1.3978e-03 1.1376e-03 1.7450e-03 2.3602e-04 7.1293e+00 1.8294e+00 102 1.4324e-03 1.1662e-03 1.5950e-03 2.2980e-04 7.1207e+00 1.8294e+00 103 1.4647e-03 1.1928e-03 1.4560e-03 2.2435e-04 7.1129e+00 1.8294e+00 104 1.4945e-03 1.2174e-03 1.3277e-03 2.1956e-04 7.1058e+00 1.8294e+00 105 1.5221e-03 1.2400e-03 1.2098e-03 2.1535e-04 7.0994e+00 1.8294e+00 106 1.5475e-03 1.2608e-03 1.1017e-03 2.1164e-04 7.0937e+00 1.8294e+00 107 1.5708e-03 1.2798e-03 1.0030e-03 2.0838e-04 7.0886e+00 1.8294e+00 108 1.5920e-03 1.2972e-03 9.1322e-04 2.0551e-04 7.0839e+00 1.8294e+00 109 1.6114e-03 1.3129e-03 8.3166e-04 2.0298e-04 7.0798e+00 1.8294e+00 110 1.6290e-03 1.3272e-03 7.5778e-04 2.0074e-04 7.0760e+00 1.8294e+00 111 1.6450e-03 1.3400e-03 6.9101e-04 1.9877e-04 7.0727e+00 1.8294e+00 112 1.6594e-03 1.3517e-03 6.3079e-04 1.9703e-04 7.0697e+00 1.8294e+00 113 1.6725e-03 1.3621e-03 5.7656e-04 1.9549e-04 7.0671e+00 1.8294e+00 114 1.6843e-03 1.3715e-03 5.2782e-04 1.9413e-04 7.0647e+00 1.8294e+00 115 1.6949e-03 1.3799e-03 4.8406e-04 1.9293e-04 7.0626e+00 1.8294e+00 116 1.7045e-03 1.3874e-03 4.4483e-04 1.9187e-04 7.0607e+00 1.8294e+00 117 1.7131e-03 1.3941e-03 4.0970e-04 1.9093e-04 7.0590e+00 1.8294e+00 118 1.7208e-03 1.4000e-03 3.7828e-04 1.9010e-04 7.0575e+00 1.8294e+00 119 1.7277e-03 1.4054e-03 3.5020e-04 1.8937e-04 7.0562e+00 1.8294e+00 120 1.7340e-03 1.4101e-03 3.2512e-04 1.8872e-04 7.0550e+00 1.8294e+00 121 1.7396e-03 1.4143e-03 3.0275e-04 1.8814e-04 7.0540e+00 1.8294e+00 122 1.7446e-03 1.4180e-03 2.8280e-04 1.8763e-04 7.0530e+00 1.8294e+00 123 1.7491e-03 1.4212e-03 2.6502e-04 1.8718e-04 7.0522e+00 1.8294e+00 124 1.7531e-03 1.4241e-03 2.4918e-04 1.8678e-04 7.0515e+00 1.8294e+00 125 1.7567e-03 1.4267e-03 2.3508e-04 1.8643e-04 7.0508e+00 1.8294e+00 126 1.7600e-03 1.4289e-03 2.2253e-04 1.8611e-04 7.0502e+00 1.8294e+00 127 1.7629e-03 1.4309e-03 2.1137e-04 1.8584e-04 7.0497e+00 1.8294e+00 128 1.7656e-03 1.4326e-03 2.0144e-04 1.8559e-04 7.0493e+00 1.8294e+00 129 1.7679e-03 1.4341e-03 1.9262e-04 1.8537e-04 7.0489e+00 1.8294e+00 130 1.7700e-03 1.4354e-03 1.8477e-04 1.8518e-04 7.0485e+00 1.8294e+00 131 1.7720e-03 1.4366e-03 1.7780e-04 1.8501e-04 7.0482e+00 1.8294e+00 132 1.7737e-03 1.4376e-03 1.7161e-04 1.8486e-04 7.0479e+00 1.8294e+00 133 1.7753e-03 1.4384e-03 1.6611e-04 1.8473e-04 7.0477e+00 1.8294e+00 134 1.7767e-03 1.4391e-03 1.6123e-04 1.8461e-04 7.0474e+00 1.8294e+00 135 1.7780e-03 1.4398e-03 1.5689e-04 1.8451e-04 7.0472e+00 1.8294e+00 136 1.7791e-03 1.4403e-03 1.5304e-04 1.8441e-04 7.0471e+00 1.8294e+00 137 1.7802e-03 1.4407e-03 1.4962e-04 1.8433e-04 7.0469e+00 1.8294e+00 138 1.7812e-03 1.4411e-03 1.4658e-04 1.8426e-04 7.0468e+00 1.8294e+00 139 1.7821e-03 1.4414e-03 1.4389e-04 1.8420e-04 7.0467e+00 1.8294e+00 140 1.7829e-03 1.4416e-03 1.4150e-04 1.8414e-04 7.0466e+00 1.8294e+00 141 1.7836e-03 1.4418e-03 1.3938e-04 1.8409e-04 7.0465e+00 1.8294e+00 142 1.7843e-03 1.4420e-03 1.3749e-04 1.8405e-04 7.0464e+00 1.8294e+00 143 1.7849e-03 1.4421e-03 1.3582e-04 1.8401e-04 7.0463e+00 1.8294e+00 144 1.7855e-03 1.4421e-03 1.3434e-04 1.8398e-04 7.0462e+00 1.8294e+00 145 1.7861e-03 1.4422e-03 1.3302e-04 1.8395e-04 7.0462e+00 1.8294e+00 146 1.7866e-03 1.4422e-03 1.3186e-04 1.8392e-04 7.0461e+00 1.8294e+00 147 1.7871e-03 1.4422e-03 1.3082e-04 1.8390e-04 7.0461e+00 1.8294e+00 148 1.7875e-03 1.4421e-03 1.2990e-04 1.8388e-04 7.0461e+00 1.8294e+00 149 1.7879e-03 1.4421e-03 1.2909e-04 1.8386e-04 7.0460e+00 1.8294e+00 150 1.7883e-03 1.4420e-03 1.2837e-04 1.8385e-04 7.0460e+00 1.8294e+00 151 1.7887e-03 1.4419e-03 1.2772e-04 1.8384e-04 7.0460e+00 1.8294e+00 152 1.7891e-03 1.4418e-03 1.2716e-04 1.8382e-04 7.0459e+00 1.8294e+00 153 1.7894e-03 1.4417e-03 1.2665e-04 1.8381e-04 7.0459e+00 1.8294e+00 154 1.7897e-03 1.4416e-03 1.2620e-04 1.8381e-04 7.0459e+00 1.8294e+00 155 1.7901e-03 1.4415e-03 1.2581e-04 1.8380e-04 7.0459e+00 1.8294e+00 156 1.7904e-03 1.4413e-03 1.2545e-04 1.8379e-04 7.0459e+00 1.8294e+00 157 1.7906e-03 1.4412e-03 1.2514e-04 1.8379e-04 7.0459e+00 1.8294e+00 158 1.7909e-03 1.4410e-03 1.2486e-04 1.8378e-04 7.0459e+00 1.8294e+00 159 1.7912e-03 1.4409e-03 1.2462e-04 1.8378e-04 7.0459e+00 1.8294e+00 160 1.7915e-03 1.4407e-03 1.2440e-04 1.8378e-04 7.0459e+00 1.8294e+00 161 1.7917e-03 1.4405e-03 1.2421e-04 1.8378e-04 7.0458e+00 1.8294e+00 162 1.7920e-03 1.4404e-03 1.2404e-04 1.8377e-04 7.0458e+00 1.8294e+00 163 1.7922e-03 1.4402e-03 1.2388e-04 1.8377e-04 7.0458e+00 1.8294e+00 164 1.7924e-03 1.4400e-03 1.2375e-04 1.8377e-04 7.0458e+00 1.8294e+00 165 1.7927e-03 1.4399e-03 1.2363e-04 1.8377e-04 7.0458e+00 1.8294e+00 166 1.7929e-03 1.4397e-03 1.2352e-04 1.8377e-04 7.0458e+00 1.8294e+00 167 1.7931e-03 1.4395e-03 1.2343e-04 1.8377e-04 7.0458e+00 1.8294e+00 168 1.7933e-03 1.4394e-03 1.2334e-04 1.8377e-04 7.0458e+00 1.8294e+00 169 1.7935e-03 1.4392e-03 1.2327e-04 1.8377e-04 7.0458e+00 1.8294e+00 170 1.7938e-03 1.4390e-03 1.2320e-04 1.8377e-04 7.0458e+00 1.8294e+00 171 1.7940e-03 1.4388e-03 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