Municipal solid waste compost (MSWC) is quite often used for soil amendment in agricultural crops and yet little is known about its effect on tea (Camellia sinensis L.) cultivation. This study investigates the effect of MSWC application on cadmium (Cd) concentrations in soil, tea plants, and infusions. Different doses of MSWC are added to soil with two Tocklai vegetative (TV) tea clones (TV1 and TV23) for 2 years in pot experiments. Several fractions of Cd in amended soils, biomass yield, and Cd content in different parts of tea plants and in tea infusions are measured. Several indexes related to risk assessment are also calculated. The geo-accumulation index values of Cd in soil amended with MSWC ranges from -1.74 to 3.12, indicating class 0 (practically uncontaminated) to class 4 (heavily contaminated) contamination level. Average daily intakes (ADI) of Cd through tea infusion produced from tea plant amended with MSWC are 8.9x10-6 and 9.2 x10-6 mgkg-1 per body weight and day for men and women, respectively. These values are much lower than those given in the Joint FAO/WHO Provisional Tolerable Monthly Intake Guideline for Cd. The non-carcinogenic risk values (also called hazard quotient) for Cd, estimated from the ADI values, are found to be 1.78 x10-2 and 1.94 x10-2 mgkg-1 per day for men and women, respectively, suggesting no health hazard. The results suggested the possibility of management of MSW through composting and the feasibility of compost application for tea cultivation.

Achievability of Municipal Solid Waste Compost for Tea Cultivation with Special Reference to Cadmium

Abollino O.;Giacomino A.;
2018-01-01

Abstract

Municipal solid waste compost (MSWC) is quite often used for soil amendment in agricultural crops and yet little is known about its effect on tea (Camellia sinensis L.) cultivation. This study investigates the effect of MSWC application on cadmium (Cd) concentrations in soil, tea plants, and infusions. Different doses of MSWC are added to soil with two Tocklai vegetative (TV) tea clones (TV1 and TV23) for 2 years in pot experiments. Several fractions of Cd in amended soils, biomass yield, and Cd content in different parts of tea plants and in tea infusions are measured. Several indexes related to risk assessment are also calculated. The geo-accumulation index values of Cd in soil amended with MSWC ranges from -1.74 to 3.12, indicating class 0 (practically uncontaminated) to class 4 (heavily contaminated) contamination level. Average daily intakes (ADI) of Cd through tea infusion produced from tea plant amended with MSWC are 8.9x10-6 and 9.2 x10-6 mgkg-1 per body weight and day for men and women, respectively. These values are much lower than those given in the Joint FAO/WHO Provisional Tolerable Monthly Intake Guideline for Cd. The non-carcinogenic risk values (also called hazard quotient) for Cd, estimated from the ADI values, are found to be 1.78 x10-2 and 1.94 x10-2 mgkg-1 per day for men and women, respectively, suggesting no health hazard. The results suggested the possibility of management of MSW through composting and the feasibility of compost application for tea cultivation.
2018
46
6
1800093
1800093
http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1863-0669
Camellia sinensis L; geo-accumulation index; health risk; heavy metals; municipal solid waste compost
Karak T.; Abollino O.; Paul R.K.; Dutta A.K.; Giacomino A.; Khare P.; Boruah R.K.
File in questo prodotto:
File Dimensione Formato  
OA_Clean_2019_Achievability of municipal_Karak et al.pdf

Open Access dal 02/02/2019

Descrizione: Postprint
Tipo di file: POSTPRINT (VERSIONE FINALE DELL’AUTORE)
Dimensione 687.68 kB
Formato Adobe PDF
687.68 kB Adobe PDF Visualizza/Apri
Clean_2018_Achievability of municipal_Karak et al.pdf

Accesso riservato

Descrizione: Pdf Editoriale
Tipo di file: PDF EDITORIALE
Dimensione 2.3 MB
Formato Adobe PDF
2.3 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1711134
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 4
  • ???jsp.display-item.citation.isi??? 4
social impact