Multiple choice In which year was the ozone hole discovered over Antarctica? 1972 1985 1970 1960 None of these Reveal answer Fill a bubble to check yourself B Correct answer Explanation The Antarctic Ozone Hole was discovered by the British Antarctic Survey from data obtained with a ground-based instrument from a measuring station at Halley Bay, Antarctica, in the 1981-1983 period. They reported the October ozone loss in 1985.