File:PCDD sediment core.svg

Description	English: Concentration profile of PCDD in a dated sediment core from Esthwaite Water, Cumbria
Date	2001(2001)
Source	Environ. Sci. Technol., 2001, 35, (14), S. 2882–2888, doi:10.1021/es000225+
Author	Nicholas J. L. Green, Joanne L. Jones, Kevin C. Jones
Permission (Reusing this file)	This file is licensed under the Creative Commons Attribution 1.0 Generic license. You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work). www.creativecommons.org/licenses/by/1.0 CC-BY-1.0 Creative Commons Attribution 1.0 truetrue
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[edit] Data table

       1990s   1980s   1970s   1960s   1950s   1940s   1930s   1920s   1910s   1900s   1890s   1880s   1870s   1860s   1850s   1840s
Cl1DD   <ld     <ld     8       11      <ld     17      11      13      9       11      15      30      25      31      27      <ld
Cl2DD   98      65      41      32      25      29      23      20      11      13      18      34      39      48      70      118
Cl3DD   10      10      15      14      24      29      20      18      9       11      13      25      29      30      110     207
Cl4DD   33      37      42      35      65      50      40      31      8       6       4       10      5       4       54      34
Cl5DD   62      79      89      77      88      74      64      53      22      8       4       5       3       <ld     16      6
Cl6DD   128     166     187     198     156     120     115     94      43      17      9       10      7       7       22      11
Cl7DD   212     282     317     389     224     110     114     100     57      18      9       11      8       7       13      10
Cl8DD   454     594     675     785     380     148     162     157     119     38      22      28      23      22      26      27