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Table 1 Heavy metals safe limits for vegetables

From: Assessment of heavy metal accumulation and health risks in okra (Abelmoschus Esculentus L.) and spinach (Spinacia Oleracea L.) fertigated with wastwater

  

Safe limits (ppm)

Samples

References

Pb

Cd

Water (mg/L)

WHO/FAO(2008)

5.01

0.01

USEPA, 2010, USEPA., 2010

0.015

0.005

Soil (mg/kg)

USEPA, 2010, USEPA., 2010

250–500

300

3.0–6.0

0.3-3.0

Plant (mg/kg)

USEPA, 2010,

5.0

0.2

USEPA., 2010

-

-

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Food Safety and Risk

ISSN: 2731-9245

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