Environmental monitoring of PCDD/Fs and metals in the vicinity of a cement plant after using sewage sludge as a secondary fuel.

摘要: Abstract In 2005, the partial substitution (20%) of fossil fuel by sewage sludge was tested in a Spanish cement plant. order to establish environmental impact for surroundings, 2006, levels polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) heavy metals (As, Cd, Co, Cr, Cu, Hg, Mn, Ni, Pb, Sn, Tl, V, Zn) were monitored soil vegetation samples collected near The temporal trends pollutant studied comparing concentrations with those obtained previous survey (2003) same sampling sites. Very slight changes PCDD/F both monitors registered period 2003–2006 (0.17–0.15 0.94–1.10 ng I-TEQ kg −1 dw herbage soil, respectively). turn, there notable heterogeneity evolution metal levels, which varied according each particular element. Anyhow, current organic inorganic pollutants are low part range comparison other zones impacted plants, as well industrial urban areas worldwide. human health risks derived from exposure PCDD/Fs also assessed. Although cancer due slightly increased, reduction total carcinogenic risks, including metals, noted. conclusion, not observed local population consequence using secondary fuel.