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Comparison of δ15N human hair values from various countries
Range of human hair δ15N values from the Netherlands (this study and previously published data41), and selected countries, such as Mexico,49 United States,53 Colombia,54 China,55 India,55 Mongolia,55 Pakistan.55 The data for all other countries are taken from the study by Lehn et al.56 All isotope values in per mil (‰). More reference data can be found elsewhere.9,57
