title: Multivariate Exploratory Analysis of Metals and Phosphorus Concentrations of Leachates Collected Monthly from a Municipal Sanitary Landfill.
abstract: Concentrations of 11 elements (P, Cu, Ni, Co, Pb, Ca, Mn, Fe, Zn, Cr and Al) were measured in leachate samples collected monthly from the municipal landfill in Jequié, Bahia, Brazil. P (0.943-23.8 mg L(-1)), Ca (19.90-129 mg L(-1)) and Fe (0.115-2.87 mg L(-1)) were found in the highest levels, while Cu (<LOQ-0.230 mg L(-1)), Ni (<LOQ-0.540 mg L(-1)), Co (<LOQ-0.268 mg L(-1)), Pb (<LOQ-0.563 mg L(-1)), Mn (<LOQ-3.40 mg L(-1)), Zn (<LOQ-0.594 mg L(-1)), Cr (<LOQ-0.163 mg L(-1)) and Al (<LOQ-2.27 mg L(-1)) were found in lower concentrations. Principal components analysis and hierarchical clustering analysis revealed two distinct groups associated with dry and rainy periods. Overall, this study revealed that concentrations of elements in landfill leachate vary temporally, and rainfall strongly influences their levels.
authors.affiliation: Universidade Estadual do Sudoeste da Bahia, Campus de Jequié, Rua José Moreira Sobrinho, s/n, Jequié, Bahia, 45206-190, Brazil.
authors.forename: Daniel Meira
authors.initials: DM
authors.lastname: de Oliveira
authors.forename: Márcio José
authors.initials: MJ
authors.lastname: Silva Dos Santos
authors.forename: Hélio Rocha
authors.initials: HR
authors.lastname: Sousa Filho
authors.forename: Luiz Augusto
authors.initials: LA
authors.lastname: Martins Cardoso
authors.forename: Cheilane Tavares
authors.initials: CT
authors.lastname: de Souza
authors.forename: Marcos Almeida
authors.initials: MA
authors.lastname: Bezerra
authors.forename: Anderson Santos
authors.initials: AS
authors.lastname: Souza
mesh_terms: D001938:Brazil; D016000:Cluster Analysis; D004784:Environmental Monitoring / Q000379:methods*; D008670:Metals / Q000032:analysis*; D015999:Multivariate Analysis; D010758:Phosphorus / Q000032:analysis*; D025341:Principal Component Analysis; D011891:Rain; D012037:Refuse Disposal / Q000379:methods*; D015203:Reproducibility of Results; D012621:Seasons; D064091:Waste Disposal Facilities; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D008670:Metals; D014874:Water Pollutants, Chemical; D010758:Phosphorus