Most of the ferrous metals are in the group of Transition Metals, which are harmful to living things.
Soil improvement such as chemical fertilizers, organic fertilizers, lime or non-metallic soil additives are highly contaminated and within the standard criteria.
• Arsenic should not exceed 2,7
• Cadmium compound should not exceed 810
• Chromium 6 Chromium Hexavalent not to exceed 640
• Lead should not exceed 750
• Manganese compound should not exceed 32,000
• Mercury compound should not exceed 610
• Nickel should not exceed 41,000
• Selenium should not exceed 10,000
For more information, please contact us at:
Office phone number: 021 410 214
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