Health risk assessment of trace metals from spinach grown on compost-amended soil.
Int J Phytoremediation
; 20(13): 1330-1336, 2018.
Article
em En
| MEDLINE
| ID: mdl-30666891
ABSTRACT
The present study evaluates the impact of two commercially available composts on the accumulation of trace metals in soil and spinach, and their potential health risks to humans. The treatments were municipal waste compost (MC) and agricultural waste compost (AC) applied at 0.5, 1.0, and 1.5% (w/w)-with the recommended dose of NPK fertilizers (50250) as a control. Trace metals concentrations (Cd, Cu, Pb, and Zn) in both composts were below the threshold level. The improved spinach yield with MC was 2.77, 16.88, and 42.34% and with AC 5.53, 17.19, and 53.38% over the control at 0.5, 1.0, and 1.5% levels, respectively. Concentrations of Cd, Cu, Pb, and Zn in spinach leaves were found higher than permissible limits at all levels of MC. However, Cu, Pb, and Zn were recorded within safe limits with AC except for Cd (which was at 1.0% and 1.5%). The daily intake of trace metals and their health risk index were found higher at elevated levels (1.0% and 1.5%) of MC and AC. The results revealed that besides all the benefits of commercial composts, they must be regularly monitored to avoid buildup of trace metals in soils and plants as well as their potential risks to human health at higher dose.
Palavras-chave
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Poluentes do Solo
/
Compostagem
/
Metais Pesados
Tipo de estudo:
Etiology_studies
/
Risk_factors_studies
Limite:
Humans
Idioma:
En
Revista:
Int J Phytoremediation
Assunto da revista:
BOTANICA
/
SAUDE AMBIENTAL
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
Paquistão