Journal
SCIENCE OF THE TOTAL ENVIRONMENT
Volume 630, Issue -, Pages 34-45Publisher
ELSEVIER
DOI: 10.1016/j.scitotenv.2018.02.175
Keywords
Trace elements; Dioxins and furans; Soil; Air; MSWI; Back-trajectories; Risk assessment
Categories
Funding
- TRARGISA, Girona, Spain
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Previously to the modernization of the municipal solid waste incinerator (MSWI) of Campdora (Girona, Catalonia, Spain) two sampling campaigns (2015 and 2016) were conducted. In each campaign, 8 soil and 4 air samples (PM10 and total particle phase and gas phase) were collected. The levels of As, Cd, Co, Cr, Cu, Hg, Mn, Ni, Pb, Sb, Sn, Tl and V, and PCDD/Fswere analysed at different distances and wind directions around the MSWI. Environmental levels of trace elements and PCDD/Fs were used to assess exposure and health risks (carcinogenic and non-carcinogenic) for the population living around the facility. In soils, no significant differences were observed for trace elements and PCDD/Fs between both campaigns. In air, significant higher levels of As, Cd, Co, Mn, Ni, Pb, Tl and V were detected in 2016. Regarding soil levels, only Cd (distances) and As, Cu, Mn, and Ni (wind directions) showed significant differences. No differences were noted in the concentrations of trace elements and PCDD/Fs in air levels with respect to distances and directions to the MSWI. No differences were registered in air levels (elements and PCDD/Fs) between points influenced by MSWI emissions and background point. However some differences in congener profile were noted regarding from where back-trajectories come from (HYSPLIT model results), pointing some influence of Barcelona metropolitan area. The concentrations of trace elements and PCDD/Fs were similar -or even lower-than those reported around other MSWIs in Catalonia and various countries. Non-carcinogenic risks were below the safety limit (HQ < 1). In turn, carcinogenic risks due to exposure to trace elements and PCDD/Fs were in acceptable ranges, according to national and international standard regulations. (C) 2018 Elsevier B.V. All rights reserved.
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