Chilean researchers and authorities address soil and school metal contamination

In the Antofagasta Region of Chile, concerns are mounting regarding heavy metal contamination in soil and educational facilities. Researcher Pablo Pastén from CEDEUS has highlighted the urgent need for national criteria to evaluate and remediate contaminated soils, noting that current initiatives often rely on international standards due to a lack of explicit domestic regulations.

Pastén emphasized the distinction between bureaucratic delays and essential risk assessment studies, particularly in mining cities where metals pose significant health risks. While some projects, such as the use of techno-soils in Andacollo, have successfully promoted vegetation growth in contaminated areas, the absence of national norms remains a critical gap.

Simultaneously, in Calama, the Regional Ministerial Secretariat of the Environment reported a decrease in MP10 particulate matter following the implementation of provisional measures. This response follows an international study that detected arsenic, lead, copper, and molybdenum in the dust of 38 schools. However, authorities have not provided new measurements to confirm if metal concentrations inside classrooms have decreased. This lack of specific data has drawn criticism from social organizations in the Antofagasta Region, who demand more decisive action against historical pollutant accumulation.