Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Great Barrier Reef' has mentioned 'Lead' in the following places:
Occurrence Sentence Text Source
Coral bleaching events lead to increased disease susceptibility, which causes detrimental ecological effects for reef communities.
Pesticides used in farming are made up of heavy metals such as lead, mercury, arsenic and other toxins are released into the wider environment due to erosion of farm soil, which has a detrimental effect on the coral.