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Supplementary information for the original paper is available at https://doi.org/10.1038/s41893-019-0338-7. Requests for additional data should be addressed to M.O.-M. or P.M.
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Orta-Martínez, M., Mayor, P., Cartró-Sabaté, M. et al. Reply to: Improper estimation of lead contamination. Nat Sustain 4, 19–20 (2021). https://doi.org/10.1038/s41893-020-00612-3