Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Petroglyphs of Lake Onega and the White Sea' has mentioned 'Lead' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| Ships and motor boats (about 8,000 units) bring oil pollution at the level of about 830 tonnes (910 tons) per navigation year, as well as phenols (500xc2xa0kgxc2xa0[1,100xc2xa0lb]), lead (100xc2xa0kgxc2xa0[220xc2xa0lb]) and oxides of sulfur, nitrogen, and carbon. | WIKI |