https://www.ndbc.noaa.gov/show_plot.php?station=npqn6&meas=opct
NDBC - 5-day plot - Oxygen Saturation at NPQN6
National Data Buoy Center - 5-day plot - Oxygen Saturation at station NPQN6 (41.832N 73.942W) - Norrie Point, Hudson River Reserve, NY.
oxygen saturationndbcdayplot