Cast,Date,Cast Time,Lat (N),Lon (W),Pressure (prog),Depth (CTD),THg (pM),MeHg (pM),Sampling method,Notes A2,10-08-2021,17:41,66 04.869,36 20.659,~0.05,—,0.601,0.080,hand sampled,Apuseeq -- sampled by hand from small boat A4,10-08-2021,18:36,66 03.248,36 24.469,~0.05,—,0.535,0.091,hand sampled,Apuseeq -- sampled by hand from small boat 7,14-08-2021,12:44,66 10.579,37 45.984,510,504.4,0.615,0.137,rosette, 7,14-08-2021,12:44,66 10.579,37 45.984,400,394.9,0.517,0.111,rosette, 7,14-08-2021,12:44,66 10.579,37 45.984,250,247.6,0.478,0.113,rosette, 7,14-08-2021,12:44,66 10.579,37 45.984,200,197.7,0.604,0.133,rosette, 7,14-08-2021,12:44,66 10.579,37 45.984,150,147.6,0.257,0.105,rosette, 7,14-08-2021,12:44,66 10.579,37 45.984,100,98.5,0.251,0.125,rosette, 7,14-08-2021,12:44,66 10.579,37 45.984,50,49.2,0.430,0.118,rosette, 7,14-08-2021,12:44,66 10.579,37 45.984,2,2.4,0.634,0.065,rosette, 8,14-08-2021,15:54,66 10.502,37 46.149,100,99.3,0.664,0.123,rosette, 8,14-08-2021,15:54,66 10.502,37 46.149,75,74.4,0.230,0.109,rosette, 8,14-08-2021,15:54,66 10.502,37 46.149,50,49.7,0.256,0.110,rosette, 8,14-08-2021,15:54,66 10.502,37 46.149,20,19.8,0.383,0.115,rosette, 8,14-08-2021,15:54,66 10.502,37 46.149,10,10.5,0.333,0.078,rosette, 8,14-08-2021,15:54,66 10.502,37 46.149,2,2.4,0.513,0.051,rosette, 9,14-08-2021,18:59,66 04.013,37 49.607,600,593.0,0.935,0.155,rosette, 9,14-08-2021,18:59,66 04.013,37 49.607,300,296.7,0.605,0.131,rosette, 9,14-08-2021,18:59,66 04.013,37 49.607,200,197.6,0.820,0.170,rosette, 9,14-08-2021,18:59,66 04.013,37 49.607,100,99,0.233,0.105,rosette, 9,14-08-2021,18:59,66 04.013,37 49.607,50,49.4,0.293,0.112,rosette, 9,14-08-2021,18:59,66 04.013,37 49.607,20,19.9,0.320,0.092,rosette, 9,14-08-2021,18:59,66 04.013,37 49.607,10,10.1,0.455,0.089,rosette, 9,14-08-2021,18:59,66 04.013,37 49.607,2,2.4,0.458,0.069,rosette, 10,15-08-2021,11:03,65 57.926,37 51.613,100,99.3,0.454,0.084,rosette, 10,15-08-2021,11:03,65 57.926,37 51.613,100,99.3,0.657,0.120,rosette,replicate 10,15-08-2021,11:03,65 57.926,37 51.613,50,49.4,0.386,0.086,rosette, 10b,15-08-2021,11:59,65 57.682,37 51.925,2,2.2,0.555,0.060,rosette,redid surface sample because bottle didn't fire 11,15-08-2021,13:25,65 54.025,37 53.370,800,790.6,0.784,0.129,rosette, 11,15-08-2021,13:25,65 54.025,37 53.370,300,296.4,0.655,0.135,rosette, 11,15-08-2021,13:25,65 54.025,37 53.370,300,197.2,0.624,0.108,rosette, 11,15-08-2021,13:25,65 54.025,37 53.370,100,99,0.442,0.109,rosette, 11,15-08-2021,13:25,65 54.025,37 53.370,50,49.6,0.458,0.075,rosette, 11,15-08-2021,13:25,65 54.025,37 53.370,20,19.9,0.563,0.072,rosette, 11,15-08-2021,13:25,65 54.025,37 53.370,10,9.9,0.755,0.058,rosette, 11,15-08-2021,13:25,65 54.025,37 53.370,2,2.7,0.698,0.036,rosette, Tiilerilaaq lake,16-08-2021,10:41,65 53.533,37 46.178,~0.05,—,1.873,0.097,hand sampled,"hand sampled, water depth ~30 cm" Tiilerilaaq river,16-08-2021,12:59,65 51.000,37 46.542,~0.05,—,3.208,0.099,hand sampled,"hand sampled, water temp 3.3º, depth ~30 cm, high sediment load" 12,16-08-2021,14:28,65 49.206,37 56.908,300,296.3,0.825,0.127,rosette,north of JP Fjord; 38-45: sampled all Niskins before acidifying 13,16-08-2021,16:45,65 42.512,38 01.251,300,295.5,0.680,0.149,rosette,between JP fjord and Sermilik mouth 13,16-08-2021,16:45,65 42.512,38 01.251,200,197,0.628,0.116,rosette, 13,16-08-2021,16:45,65 42.512,38 01.251,200,197,0.486,0.109,rosette,replicate 13,16-08-2021,16:45,65 42.512,38 01.251,150,147.3,0.278,0.126,rosette, 13,16-08-2021,16:45,65 42.512,38 01.251,100,98.2,0.594,0.104,rosette, 13,16-08-2021,16:45,65 42.512,38 01.251,50,49,0.585,0.102,rosette, 13,16-08-2021,16:45,65 42.512,38 01.251,20,19.6,0.814,0.079,rosette, 13,16-08-2021,16:45,65 42.512,38 01.251,10,9.5,0.742,0.065,rosette, 13,16-08-2021,16:45,65 42.512,38 01.251,2,2.6,1.036,0.041,rosette, 14,16-08-2021,18:36,65 37.722,38 02.266,600,592.8,0.543,0.117,rosette,at Sermilik mouth 14,16-08-2021,18:36,65 37.722,38 02.266,300,295.8,0.479,0.103,rosette, 14,16-08-2021,18:36,65 37.722,38 02.266,200,196.7,0.541,0.130,rosette, 14,16-08-2021,18:36,65 37.722,38 02.266,100,96.7,0.438,0.121,rosette, 14,16-08-2021,18:36,65 37.722,38 02.266,50,48.7,0.665,0.086,rosette, 14,16-08-2021,18:36,65 37.722,38 02.266,20,18.5,0.911,0.078,rosette, 14,16-08-2021,18:36,65 37.722,38 02.266,10,10,1.031,0.065,rosette, 14,16-08-2021,18:36,65 37.722,38 02.266,2,—,0.882,0.033,rosette,AFM didn't record bottle fire time 12,16-08-2022,14:28,65 49.206,37 56.908,200,196.9,0.526,0.133,rosette, 12,16-08-2023,14:28,65 49.206,37 56.908,150,147.4,0.366,0.091,rosette, 12,16-08-2024,14:28,65 49.206,37 56.908,100,98.6,0.577,0.121,rosette, 12,16-08-2025,14:28,65 49.206,37 56.908,50,49.3,0.386,0.102,rosette, 12,16-08-2026,14:28,65 49.206,37 56.908,20,19.6,0.656,0.086,rosette, 12,16-08-2027,14:28,65 49.206,37 56.908,10,10.2,0.791,0.064,rosette, 12,16-08-2028,14:28,65 49.206,37 56.908,2,2.7,0.956,0.024,rosette, 21,18-08-2021,10:31,65 40.828,38 11.204,10,—,0.997,0.061,niskin (manual),bay near Sermilik mouth at anchor — testing Niskins on line (no rosette/AFM) 21,18-08-2021,10:31,65 40.828,38 11.204,2,—,1.112,0.063,niskin (manual), 22,18-08-2021,15:34,65 33.999,38 20.917,150,—,0.716,0.137,niskin (manual),offshore West 1 (full depth cast) 22,18-08-2021,15:34,65 33.999,38 20.917,100,—,1.013,0.159,niskin (manual), 23,18-08-2021,16:25,65 22.934,38 20.991,50,—,0.781,0.126,niskin (manual),offshore West 1 (shallow cast for more water samples) 23,18-08-2021,16:25,65 22.934,38 20.991,2,—,0.931,0.050,niskin (manual), 25,18-08-2021,18:07,65 30.545,38 15.536,460,—,0.631,0.071,niskin (manual),offshore West 3 26,18-08-2021,19:00,65 28.970,38 11.828,2,—,1.112,0.043,niskin (manual),offshore West 4 26,18-08-2021,19:00,65 28.970,38 11.828,2,—,1.530,0.038,niskin (manual),replicate 27,18-08-2021,19:41,65 27.734,38 08.029,2,—,0.981,0.054,niskin (manual),offshore West 5 Tasiilaq river,20-08-2021,12:05,65 36.633,37 39.283,~0.1,—,0.732,0.044,hand sampled,"hand sampled, water temp ~10º, depth ~30 cm" Tasiilaq river,20-08-2021,12:05,65 36.633,37 39.283,~0.1,—,0.782,0.038,hand sampled,replicate