Comparative study of heavy metals in "soil-wheat" systems between sewage-irrigated areas and clean-water-irrigated areas in suburban Beijing.
J Environ Health
; 77(6): 28-34, 2015.
Article
em En
| MEDLINE
| ID: mdl-25619033
ABSTRACT
After years of irrigating farmland with wastewater, concern is increasing about health risks from heavy metals contaminating wheat grown in sewage-irrigated soils in suburban areas of Beijing, China. The study discussed in this article aimed to compare the characteristics of heavy metal distribution in a sewage-irrigated "soil-wheat" system with those from a clean-water-irrigated area by collecting and analyzing samples from both areas. The results indicated that the average concentrations of copper, chromium, lead, and zinc in sewage-irrigated soil were higher than the values in the clean-water-irrigated region. Irrigation with wastewater could lead to increased bioconcentration factors. Therefore, issues of food contamination caused by sewage irrigation deserve more attention.
Buscar no Google
Base de dados:
MEDLINE
Assunto principal:
Poluentes do Solo
/
Poluentes Químicos da Água
/
Triticum
/
Metais Pesados
/
Agricultura
/
Águas Residuárias
Idioma:
En
Revista:
J Environ Health
Ano de publicação:
2015
Tipo de documento:
Article