Table 1 Levels (μg/g d.w.) of chromium, cadmium, lead and mercury in ewe's milk, fresh, mature cheese and ricotta collected in 8 farms located in southern Italy.

0.06

0.40

0.14 ± 0.113

0.05

0.10

0.07 ± 0.019

0.11

0.28

0.18 ± 0.069

0.0014

0.0029

0.002 ± 0.005

0.03

0.68

0.32 ± 0.226

0.06

0.24

0.13 ± 0.212

0.12

0.70

0.391 ± 0.212

0.0006

0.0028

0.0017 ± 0.0008

0.40

0.53

0.46 ± 0.042

0.05

0.35

0.19 ± 0.114

0.13

1.15

0.47 ± 0.365

0.0006

0.0017

0.008 ± 0.0005

0.34

0.67

0.47 ± 0.102

0.06

0.15

0.11 ± 0.041

0.21

1.07

0.58 ± 0.271

0.0002

0.0056

0.0014 ± 0.0001