Estimation of PCBs content in agricultural soils associated with long-term fertilization with organic waste

Antolín Rodríguez, J.M. ; Sánchez Báscones, M. ; Martín Ramos, P. (Universidad de Zaragoza) ; Bravo Sánchez, C.T. ; Martín Gil, J.

Resumen: Polychlorinated biphenyl (PCB) pollution related to the use of organic waste as fertilizers in agricultural soils is a cause of major concern. In the study presented herein, PCB concentration was studied through a field trial conducted in two agricultural soils in the province of Palencia (Spain) over a 4-year period, assessing the impact of irrigation and of different types of organic waste materials. The amounts of organic waste added to the soil were calculated according to the nitrogen needs of the crop, and the concentration of PCBs was determined before and after the application of the organic waste. The resulting persistence of the total PCB content in the agricultural soils, compared with the PCB concentration in the original soils, ranged from 27% to 90%, with the lowest value corresponding to irrigated soils treated with municipal solid waste compost (MSWC) and the highest value to non-irrigated soils treated with composted sewage sludge (CSS). An estimate of the PCB content in agricultural soils after the application of organic waste materials until year 2050 was obtained, resulting in a value below 5 ng·g-1, considered a background value for soils in sites far away from potential pollution sources.

Idioma: Inglés

DOI: 10.1007/s11356-016-6439-1

Año: 2016

Publicado en: Environmental Science and Pollution Research 23, 12 (2016), 12372-12383
ISSN: 0944-1344

Factor impacto JCR: 2.741 (2016)

Categ. JCR: ENVIRONMENTAL SCIENCES rank: 79 / 229 = 0.345 (2016) - Q2 - T2

Factor impacto SCIMAGO: 0.891 - Medicine (miscellaneous) (Q1) - Pollution (Q1) - Environmental Chemistry (Q2) - Health, Toxicology and Mutagenesis (Q2)

Tipo y forma: Artículo (PostPrint)

Área (Departamento): Area Ingeniería Agroforestal (Dpto. CC.Agrar.y Medio Natural)