Metadata Analysis of Persistent Organic Pollutants in National Pools of Human Milk in Support of the Stockholm Convention Implementation.

For PCB 6 , there is even an increasing trend observed for the last years, but the values are close together.

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General observations include the following: (a) SCCP shows a decreasing trend with increasing income ( Figure 3 above left), (b) heptachlor ( Figure 3 above right), dl-PCB, and HBCD (see Figure S3 ) show an increase with increasing income, and finally (c) PCB 6 exhibits an unclear trend with first increasing and then decreasing values ( Figure 3 below). 3.2.2 Population Density The amounts of POPs in the national pools grouped according to the six population density codes (PD_Codes) are shown in Figure 4 .

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