Homologue distribution patterns of 2,3,7,8-chloro-substituted PCDD/F in Bavarian soils
Abstract Background Soil-background values of PCDD/F concentrations are usually conveniently displayed as toxic equivalent (TEq), being a bulk parameter of all relevant 7 PCDD- and 10 PCDF-congeneres, chloro-subsidized at the 2nd, 3rd, 7th and 8th carbon atom. Data here are ample, not so survey on c...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2017-11-01
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| Series: | Environmental Sciences Europe |
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| Online Access: | http://link.springer.com/article/10.1186/s12302-017-0126-9 |
| _version_ | 1818135123833389056 |
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| author | Raimund Prinz |
| author_facet | Raimund Prinz |
| author_sort | Raimund Prinz |
| collection | DOAJ |
| description | Abstract Background Soil-background values of PCDD/F concentrations are usually conveniently displayed as toxic equivalent (TEq), being a bulk parameter of all relevant 7 PCDD- and 10 PCDF-congeneres, chloro-subsidized at the 2nd, 3rd, 7th and 8th carbon atom. Data here are ample, not so survey on congenere/homologue patterns occurring in soils. The sufficient number of samples taken within this analysis allowed first a well-grounded evaluation. Results OCDD proved to be the dominant congenere in all samples (forest and agriculture), however, in considerably different concentrations. As expected, highest level was detected in forest organic layers, followed by forest top soils, cropland- and grassland top soils. Although highest in concentration, OCDD only contributes to 0.17% (both forest organic- and top soil layer), respectively, 0.4% (cropland) and 0.3% (grassland) to TEq. The influence of lower chlorinated homologues on TEq is strongest in forest top soils (72%) followed by 67% (forest organic layers), cropland top soil (63%) and grassland (61%). Although all homologue patterns (forest and agriculture) give a fairly similar picture, a test of significance (χ 2) proved a different population of forest samples. Conclusions The resemblance of the homologue patterns throughout all utilization suggests that agent levels are explained mainly by diffuse atmospheric depositions rather than by specific land use input. |
| first_indexed | 2024-12-11T09:19:31Z |
| format | Article |
| id | doaj.art-2a70aee8e7f842fbbba89fdd2bd42495 |
| institution | Directory Open Access Journal |
| issn | 2190-4707 2190-4715 |
| language | English |
| last_indexed | 2024-12-11T09:19:31Z |
| publishDate | 2017-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Environmental Sciences Europe |
| spelling | doaj.art-2a70aee8e7f842fbbba89fdd2bd424952022-12-22T01:13:16ZengSpringerOpenEnvironmental Sciences Europe2190-47072190-47152017-11-0129111010.1186/s12302-017-0126-9Homologue distribution patterns of 2,3,7,8-chloro-substituted PCDD/F in Bavarian soilsRaimund Prinz0Bavarian Environment AgencyAbstract Background Soil-background values of PCDD/F concentrations are usually conveniently displayed as toxic equivalent (TEq), being a bulk parameter of all relevant 7 PCDD- and 10 PCDF-congeneres, chloro-subsidized at the 2nd, 3rd, 7th and 8th carbon atom. Data here are ample, not so survey on congenere/homologue patterns occurring in soils. The sufficient number of samples taken within this analysis allowed first a well-grounded evaluation. Results OCDD proved to be the dominant congenere in all samples (forest and agriculture), however, in considerably different concentrations. As expected, highest level was detected in forest organic layers, followed by forest top soils, cropland- and grassland top soils. Although highest in concentration, OCDD only contributes to 0.17% (both forest organic- and top soil layer), respectively, 0.4% (cropland) and 0.3% (grassland) to TEq. The influence of lower chlorinated homologues on TEq is strongest in forest top soils (72%) followed by 67% (forest organic layers), cropland top soil (63%) and grassland (61%). Although all homologue patterns (forest and agriculture) give a fairly similar picture, a test of significance (χ 2) proved a different population of forest samples. Conclusions The resemblance of the homologue patterns throughout all utilization suggests that agent levels are explained mainly by diffuse atmospheric depositions rather than by specific land use input.http://link.springer.com/article/10.1186/s12302-017-0126-9PCDD/F-homologuesSoil samplesForest organic layersTop soil layersUbiquitous emission |
| spellingShingle | Raimund Prinz Homologue distribution patterns of 2,3,7,8-chloro-substituted PCDD/F in Bavarian soils Environmental Sciences Europe PCDD/F-homologues Soil samples Forest organic layers Top soil layers Ubiquitous emission |
| title | Homologue distribution patterns of 2,3,7,8-chloro-substituted PCDD/F in Bavarian soils |
| title_full | Homologue distribution patterns of 2,3,7,8-chloro-substituted PCDD/F in Bavarian soils |
| title_fullStr | Homologue distribution patterns of 2,3,7,8-chloro-substituted PCDD/F in Bavarian soils |
| title_full_unstemmed | Homologue distribution patterns of 2,3,7,8-chloro-substituted PCDD/F in Bavarian soils |
| title_short | Homologue distribution patterns of 2,3,7,8-chloro-substituted PCDD/F in Bavarian soils |
| title_sort | homologue distribution patterns of 2 3 7 8 chloro substituted pcdd f in bavarian soils |
| topic | PCDD/F-homologues Soil samples Forest organic layers Top soil layers Ubiquitous emission |
| url | http://link.springer.com/article/10.1186/s12302-017-0126-9 |
| work_keys_str_mv | AT raimundprinz homologuedistributionpatternsof2378chlorosubstitutedpcddfinbavariansoils |