Research conducted between 2018 and 2020 on 11 indigenous communities in southeast Espinar province of the Cusco region found that 8,000 people were affected by high levels of lead, arsenic, cadmium, mercury and manganese.
Given the need for social distancing and other measures to prevent the spread of the coronavirus, only 675 visitors will be allowed in each day.
The archaeological complex is at risk of mudslides due to heavy rainfall in winter and forest fires in summer.
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