Distribution of enteric bacteria in Antarctic seawater surrounding a sewage outfall

摘要: Abstract The spatial distribution and movement of the sewage plume from McMurdo Station, Antarctica, was investigated in ocean under early summer sea ice. Ocean currents were also examined to determine their effect on plume. Samples water obtained via holes drilled through ice analyzed for coliform bacteria. Coliform densities cores determined. Densities bacteria as high 105/100 ml found along c. 1 km shoreline Station extended 200–300 m seaward. relocation outfall a surface configuration subsurface (11 deep) had little influence that sometimes reached seawater intake station, 400 south. current measurements study area confirmed that, while prevailing advection north away area, episodic reversals flow at some meter stations coincided with pulses moved intake. These findings support use bacterial indicators one means map recent contamination cold (−1.8°C) provide evidence disposal domestic wastes deserves attention costal polar environments.