Implications of the Phytoremediation of Heavy Metal Contamination of Soils and Wild Plants in the Industrial Area of Haina, Dominican Republic

Agripina Ramírez, Gregorio García, Olaf Werner, José Navarro-Pedreño and Rosa M. Ros
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Agripina Ramírez: Instituto de Innovación en Biotecnología e Industria, Santo Domingo, Calle Oloff Palme esquina Nuñez de Cáceres, Urb. San Gerónimo, 10135 Santo Domingo, Dominican Republic
Gregorio García: Departamento de Ingeniería Agronómica, Universidad Politécnica de Cartagena, ETSIA, Paseo Alfonso XIII 48, 30203 Cartagena, Spain
Olaf Werner: Departamento de Biología Vegetal, Facultad de Biología, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain
José Navarro-Pedreño: Departamento de Agroquímica y Medio Ambiente, Universidad Miguel Hernández de Elche, Avd. de la Universidad s/n, 03202 Elche, Spain
Rosa M. Ros: Departamento de Biología Vegetal, Facultad de Biología, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain

Sustainability, 2021, vol. 13, issue 3, 1-26

Abstract: The study evaluates pollution by Pb, Zn, and Cr, and a possible sustainable solution through phytoremediation technologies, in the surroundings of Haina, a very polluted area of the Dominican Republic. Soils and plants were analyzed at 11 sampling points. After sample processing, the elemental composition was analyzed by ICP-OES. Soil metal concentrations, contaminating factors, pollution load indexes, and the Nemerow pollution index were assessed. Soil metal concentrations showed Pb > Zn > Cr, resulting in very strong Pb pollution and medium-impact Zn pollution, with an anthropogenic origin in some sites. This means that some agricultural and residential restrictions must be applied. Accumulation levels in plant tissues, bioaccumulation factors in roots and shoots, and translocation factors were determined for Acalypha alopecuroidea , Achyranthes aspera , Amaranthus dubius , Bidens pilosa , Heliotropium angiospermum , Parthenium hysterophorus, and Sida rhombifolia . The vast majority of the plants showed very low levels of the potentially toxic elements studied, although it may be advisable to take precautions before consumption as they are all considered edible, fodder, and/or medicinal plants. Despite their low rate of bioaccumulation, most of the plants studied could be suitable for the application of phytoremediation of Zn in the field, although further studies are needed to assess their potential for this.

Keywords: bioaccumulation; environmental risk assessment; phytotechnologies; pollution assessment; soil pollution; translocation; tropical areas (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:13:y:2021:i:3:p:1403-:d:489330

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