Histograms of the organochlorine compound levels [ng g^{-1}] in breast milk in relation to the maternal age (a) and parity (b).

Interactive figure 2

Aggregation plots of the organochlorine compound concentrations [ng g^{-1}] in the milk samples and maternal age (a) and parity (b).

Interactive figure 3

Organochlorine compound concentration [ng g^{-1}] (a) and Unmix derived source contribution (b) loess regression in breast milk based on maternal age for the mothers with first, second and third child delivery.

Interactive figure 4

Ratios of Unmixed-derived source contributions (a) and organochlorine compounds (b) in relation to the maternal age and parity

Supplementary file 1

Probability density function, linear and loess regression, and Pearson’s correlation coefficients for the organochlorine pollutants in the breast milk and maternal parameters - age and parity (p-value: *** < 0.0001, ** < 0.001, * < 0.01).