Domingo J L, Schuhmacher M, Agramunt M C, Llobet J M, Rivera J, Müller L
Laboratory of Toxicology and Environmental Health, Rovira i Virgili, University, Reus, Spain.
Environ Int. 2002 Apr;28(1-2):19-27. doi: 10.1016/s0160-4120(01)00129-5.
In 1998 and 1999, the concentrations of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) were determined in soil and herbage samples collected in the vicinity of an old municipal solid waste incinerator (MSWI) (S. Adrià del Besòs, Barcelona, Spain). Just after the 1999 collection, an adaptation to the EU legislation on pollutant emissions from the stack was carried out in this facility. The purpose of the present study was to determine the current concentrations of PCDD/Fs in soil and herbage samples collected in the neighbourhood of the MSWI and to compare these concentrations with those obtained in the 1998 and 1999 surveys. During the period 1998-1999, an increase of 31% (P>.05) was found in the median PCDD/F levels in soils, while a reduction of 40% (P>.05) was observed in the period 1999-2000. Similarly, in the period 1998-1999 an increase of 41% (P>.05) was found in the levels of PCDD/Fs in vegetation, while a 30% decrease (P<.05) was seen in the period 1999-2000. Although after introduction of the technical improvements in the MSWI a notable reduction in the levels of PCDD/Fs in soil and vegetation has been noted, the median decreases have not been as great as it could be expected according to the very pronounced reductions in PCDD/F emissions from the stack. It indicates that other emission sources of PCDD/Fs also have a notable impact on the area under direct influence of the MSWI.
1998年和1999年，对在一座旧的城市固体废物焚烧炉（MSWI）（西班牙巴塞罗那阿德里亚德尔贝索斯）附近采集的土壤和草本植物样本中的多氯二苯并对二恶英和二苯并呋喃（PCDD/Fs）浓度进行了测定。1999年采集样本后不久，该设施针对欧盟关于烟囱污染物排放的法规进行了调整。本研究的目的是测定在MSWI附近采集的土壤和草本植物样本中PCDD/Fs的当前浓度，并将这些浓度与1998年和1999年调查中获得的浓度进行比较。在1998 - 1999年期间，土壤中PCDD/Fs的中位数水平增加了31%（P >.05），而在1999 - 2000年期间观察到下降了40%（P >.05）。同样，在1998 - 1999年期间，植被中PCDD/Fs的水平增加了41%（P >.05），而在1999 - 2000年期间下降了30%（P <.05）。尽管在MSWI引入技术改进措施后，土壤和植被中PCDD/Fs的水平有显著降低，但中位数的下降幅度并不像根据烟囱中PCDD/F排放的显著减少所预期的那么大。这表明PCDD/Fs的其他排放源对MSWI直接影响区域也有显著影响。
