Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Petroglyphs of Lake Onega and the White Sea' has mentioned 'Human' in the following places:
Occurrence Sentence Text Source
Human activity results in about 315xc2xa0million cubic metres (11.1xc2xa0billion cubic feet) of drain water per year, of which 46% are industrial and household water, 25% is stormwater runoff and 16% is melioration-related drainage.