Comparison of organochlorine pesticides and polychlorinated biphenyls residues in vegetables, grain and soil from organic and conventional farming in Poland.
J Environ Sci Health B
; 47(4): 343-54, 2012.
Article
em En
| MEDLINE
| ID: mdl-22428896
ABSTRACT
Organic and conventional crops were studied by identifying the relationship between persistent organic pollutants in cereals, vegetables and soil. The residues of organochlorine pesticides and polychlorinated biphenyls (PCBs) were determined in grains (rye and wheat), vegetables (carrots and beets) and soil collected from the fields. PCB residues recorded in the beets from organic farming were as high as 3.71 ppb dry weight (dry wt.), while in the soil from conventional farming of beets 0.53 ppb dry wt. Among vegetables, higher concentrations of pesticides were detected in organically grown beets (190.63 ppb dry wt.). Soil samples from the organic farming contained lower levels of organochlorine pesticide residues compared to the conventional farming. Taking into account toxicity equivalent (TEQ), the conventionally grown carrots accumulated the most toxic PCBs. Non-ortho and mono-ortho PCBs were also noted in the grain of conventionally grown rye and amounted to 3.05 pg-TEQ/g wet wt.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Poluentes do Solo
/
Verduras
/
Resíduos de Praguicidas
/
Grão Comestível
/
Bifenilos Policlorados
/
Agricultura
/
Hidrocarbonetos Clorados
País/Região como assunto:
Europa
Idioma:
En
Revista:
J Environ Sci Health B
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Polônia