Characterization of polychlorinated dibenzo-p-dioxins and dibenzofurans, dioxin-like polychlorinated biphenyls, and polychlorinated naphthalenes in the environment surrounding secondary copper and aluminum metallurgical facilities in China.

Characterization of polychlorinated dibenzo-p-dioxins and dibenzofurans, dioxin-like polychlorinated biphenyls, and polychlorinated naphthalenes in the environment surrounding secondary copper and aluminum metallurgical facilities in China.

Environmental pollution (Barking, Essex : 1987) (2014-07-02)

Jicheng Hu, Minghui Zheng, Wenbin Liu, Zhiqiang Nie, Changliang Li, Guorui Liu, Ke Xiao

ABSTRACT

Unintentionally produced persistent organic pollutants (UP-POPs) were determined in ambient air from around five secondary non-ferrous metal processing plants in China, to investigate the potential impacts of the emissions of these plants on their surrounding environments. The target compounds were polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), dioxin-like polychlorinated biphenyls (dl-PCBs), and polychlorinated naphthalenes (PCNs). The PCDD/F, dl-PCB, and PCN concentrations in the ambient air downwind of the plants were 4.70-178, 8.23-7520 and 152-4190 pg/m(3), respectively, and the concentrations upwind of the plants were lower. Clear correlations were found between ambient air and stack gas concentrations of the PCDD/Fs, dl-PCBs, and PCNs among the five plants, respectively. Furthermore, the UP-POPs homolog and congener patterns in the ambient air were similar to the patterns in the stack gas samples. These results indicate that UP-POPs emissions from the plants investigated have obvious impacts on the environments surrounding the plants.

MATERIALS

Product Number

Brand

Product Description

349151

Sigma-Aldrich

Copper, foil, thickness 0.5 mm, 99.98% trace metals basis

349208

Sigma-Aldrich

Copper, foil, thickness 0.025 mm, 99.98% trace metals basis

349216

Sigma-Aldrich

Copper, wire, diam. 1.0 mm, ≥99.9%

326429

Sigma-Aldrich

Copper, wire, diam. 0.25 mm, 99.999% trace metals basis

326410

Sigma-Aldrich

Copper, wire, diam. 0.64 mm, 99.995% trace metals basis

349224

Sigma-Aldrich

Copper, wire, diam. 2.0 mm, 99.999% trace metals basis

433705

Sigma-Aldrich

Aluminum, evaporation slug, diam. × L 6.3 mm × 6.3 mm, 99.999% trace metals basis

326887

Sigma-Aldrich

Aluminum, wire, diam. 0.58 mm, ≥99.99% trace metals basis

236373

Sigma-Aldrich

Dibenzofuran, 98%

GF74488900

Copper, tube, 200mm, outside diameter 5.0mm, inside diameter 4mm, wall thickness 0.5mm, as drawn, 99.9%

GF96312326

Aluminum, honeycomb, 600x600mm, thickness 26.5mm, cell size 6.3mm, cell wall 0.064mm, core density 0.083g/cm³, phenolic adhesive (resin), facing skin carbon fiber / epoxy, 99.9%

GF97918644

Copper - O.F.H.C., foil, 10m coil, thickness 0.125mm, hard, 99.95+%

GF87997000

Aluminum, honeycomb, 300x300mm, thickness 20mm, cell size 4.8mm, cell wall 0.038mm, core density 0.070g/cm³, phenolic adhesive (resin), 99.5%

GF69207240

Copper - O.F.H.C., foil, 10m coil, thickness 0.075mm, half hard, 99.95+%

GF98440027

Aluminum, honeycomb, 600x600mm, thickness 10mm, cell size 6.3mm, cell wall 0.064mm, core density 0.083g/cm³, phenolic adhesive (resin), 99.5%

GF98944600

Copper - O.F.H.C., foil, 25mm disks, thickness 0.025mm, hard, 99.95+%

GF93055901

Copper - O.F.H.C., foil, 2m coil, thickness 0.025mm, hard, 99.95+%

GF84027988

Copper, tube, 500mm, outside diameter 4.0mm, inside diameter 3.2mm, wall thickness 0.4mm, as drawn, 99.9%

GF92248128

Copper - O.F.H.C., foil, 10m coil, thickness 0.1mm, coil width 100mm, hard, 99.95+%

GF94804779

Copper - O.F.H.C., foil, 50mm disks, thickness 0.25mm, half hard, 99.95+%

GF88138952

Copper - O.F.H.C., foil, 15mm disks, thickness 0.5mm, half hard, 99.95+%

GF85240694

Aluminum, honeycomb, 600x600mm, thickness 20mm, cell size 3.2mm, cell wall 0.025mm, core density 0.072g/cm³, phenolic adhesive (resin), 99.5%

GF69818855

Copper - O.F.H.C., foil, 50mm disks, thickness 0.05mm, hard, 99.95+%

GF84156262

Copper, tube, 500mm, outside diameter 1.75mm, inside diameter 0.33mm, wall thickness 0.71mm, as drawn, 99.9%

GF84372521

Copper, tube, 200mm, outside diameter 12.7mm, inside diameter 10.26mm, wall thickness 1.22mm, as drawn, 99.9%

GF82329172

Copper, tube, 200mm, outside diameter 0.95mm, inside diameter 0.29mm, wall thickness 0.33mm, as drawn, 99.9%

GF68687038

Copper - O.F.H.C., foil, 10m coil, thickness 0.1mm, hard, 99.95+%

GF93757786

Copper - O.F.H.C., foil, 15mm disks, thickness 0.125mm, hard, 99.95+%

GF87158650

Copper, tube, 500mm, outside diameter 1.0mm, inside diameter 0.24mm, wall thickness 0.38mm, as drawn, 99.9%

GF86118969

Aluminum, honeycomb, 300x300mm, thickness 5mm, cell size 19mm, cell wall 0.064mm, core density 0.029g/cm³, phenolic adhesive (resin), 99.5%