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Testing the validity of a Cd soil quality standard in representative Mediterranean agricultural soils under an accumulator crop.
Sci Total Environ. 2010 Dec 01; 409(1):9-18.ST

Abstract

The validity of a quality standard for cadmium (Cd) in representative agricultural Mediterranean soils under an accumulator crop (Lactuca sativa L.) is evaluated in this work considering both its effect on the crop growth (biomass production) and the metal accumulation in the edible part of the plant. Four soils with different properties relevant to regulate the behaviour of heavy metals were selected from the Valencian Region, a representative area of the European Mediterranean Region. For all soils, the effective concentration of added Cd causing 50% inhibition (EC(50)) on the biomass production was much higher than the minimum legal concentration used to declare soils as contaminated by cadmium, i.e. 100 times the baseline value for Cd, in Spain (Spanish Royal Decree 9/2005). As expected, Cd toxicity in the crop was higher in the soils having less carbonate content. On the other hand, for all soils, from the second dose on, which represents 10-times the baseline value for Cd, the metal content in crops exceeded the maximum level established for leaf crops by the European legislation (Regulation EC no. 466/2001). Soil salinity and coarse textures make the accumulation of Cd in the edible part of the plant easier. Therefore, the legal baseline soil cadmium content established by the Spanish legislation seems not valid neither from the point of view of the effect on the crop growth nor from the point of view of the metal accumulation in the edible part of the plant. In order to realistically declare contaminated soils by heavy metals, soil quality standards should be proposed taking into account the soil properties. Further research in other agricultural areas of the region would improve the basis for proposing adequate soil quality standards for heavy metals as highlighted by the European Thematic Strategy for Soil Protection.

Authors+Show Affiliations

Departamento de Planificación Territorial, Centro de Investigaciones sobre Desertificación-CIDE (CSIC-Universitat de València-Generalitat Valenciana), Camí de la Marjal S/N, 46470 Albal, Valencia, Spain. luis.recatala@uv.esNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Validation Study

Language

eng

PubMed ID

20947133

Citation

Recatalá, L, et al. "Testing the Validity of a Cd Soil Quality Standard in Representative Mediterranean Agricultural Soils Under an Accumulator Crop." The Science of the Total Environment, vol. 409, no. 1, 2010, pp. 9-18.
Recatalá L, Sánchez J, Arbelo C, et al. Testing the validity of a Cd soil quality standard in representative Mediterranean agricultural soils under an accumulator crop. Sci Total Environ. 2010;409(1):9-18.
Recatalá, L., Sánchez, J., Arbelo, C., & Sacristán, D. (2010). Testing the validity of a Cd soil quality standard in representative Mediterranean agricultural soils under an accumulator crop. The Science of the Total Environment, 409(1), 9-18. https://doi.org/10.1016/j.scitotenv.2010.09.021
Recatalá L, et al. Testing the Validity of a Cd Soil Quality Standard in Representative Mediterranean Agricultural Soils Under an Accumulator Crop. Sci Total Environ. 2010 Dec 1;409(1):9-18. PubMed PMID: 20947133.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Testing the validity of a Cd soil quality standard in representative Mediterranean agricultural soils under an accumulator crop. AU - Recatalá,L, AU - Sánchez,J, AU - Arbelo,C, AU - Sacristán,D, Y1 - 2010/10/13/ PY - 2010/06/25/received PY - 2010/09/03/revised PY - 2010/09/14/accepted PY - 2010/10/16/entrez PY - 2010/10/16/pubmed PY - 2010/12/18/medline SP - 9 EP - 18 JF - The Science of the total environment JO - Sci Total Environ VL - 409 IS - 1 N2 - The validity of a quality standard for cadmium (Cd) in representative agricultural Mediterranean soils under an accumulator crop (Lactuca sativa L.) is evaluated in this work considering both its effect on the crop growth (biomass production) and the metal accumulation in the edible part of the plant. Four soils with different properties relevant to regulate the behaviour of heavy metals were selected from the Valencian Region, a representative area of the European Mediterranean Region. For all soils, the effective concentration of added Cd causing 50% inhibition (EC(50)) on the biomass production was much higher than the minimum legal concentration used to declare soils as contaminated by cadmium, i.e. 100 times the baseline value for Cd, in Spain (Spanish Royal Decree 9/2005). As expected, Cd toxicity in the crop was higher in the soils having less carbonate content. On the other hand, for all soils, from the second dose on, which represents 10-times the baseline value for Cd, the metal content in crops exceeded the maximum level established for leaf crops by the European legislation (Regulation EC no. 466/2001). Soil salinity and coarse textures make the accumulation of Cd in the edible part of the plant easier. Therefore, the legal baseline soil cadmium content established by the Spanish legislation seems not valid neither from the point of view of the effect on the crop growth nor from the point of view of the metal accumulation in the edible part of the plant. In order to realistically declare contaminated soils by heavy metals, soil quality standards should be proposed taking into account the soil properties. Further research in other agricultural areas of the region would improve the basis for proposing adequate soil quality standards for heavy metals as highlighted by the European Thematic Strategy for Soil Protection. SN - 1879-1026 UR - https://www.unboundmedicine.com/medline/citation/20947133/Testing_the_validity_of_a_Cd_soil_quality_standard_in_representative_Mediterranean_agricultural_soils_under_an_accumulator_crop_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0048-9697(10)00982-4 DB - PRIME DP - Unbound Medicine ER -