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4. Physico-chemical characterization of the soil-plant system
4.1 Sampling and analysis
Vegetable crops (vegetables, herbs, fruit) were sampled over the course of a single growing season at a stage of development corresponding to that of their usual consumption. Uneaten parts were removed, and preparation mimicked the practices of a meticulous consumer. After three washes, and peeling if necessary, the samples were dried, mechanically ground and analyzed for Cd and Pb concentrations.
Given the presumption of intra-plot variability in metal concentrations within vegetable gardens, soil samples were collected for each of the beds where vegetable plants were collected. For each bed, a composite soil sample was taken from around ten samples taken from the worked soil layer (0-20 cm). The soil samples were dried, sieved to...
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Physico-chemical characterization of the soil-plant system
Reporting results
Bibliography
Standards and norms
- Soil quality – Determining the particle size distribution of soil particles – Pipette method. - NF X 31-107 - 2003
- Soil quality – pH determination. - NF ISO 10390 - 2005
- Soil quality – determination of organic carbon and total carbon after dry combustion (elemental analysis). - NF ISO 10694 - 1995
- Soil quality – Determination of carbonate content – Volumetric method. - NF ISO 10693 - 2014 ...
Regulations
Commission Regulation (EC) No 1881/2006 of December 19, 2006 setting maximum levels for certain contaminants in foodstuffs, amended by Commission Regulation (EU) 2015/1005 of June 25, 2015 as regards maximum levels for lead in certain foodstuffs.
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