CSEMP assessment of benzo[a]pyrene in sediment at Celtic Deep
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 16.99 | 19.99 | -5.50 | 10.99 | | | |
| linear | 2 | 17.51 | 23.91 | -4.76 | 9.51 | 1.476 | 1 | 0.2245 |
| smooth (df = 2) | 3 | 18.91 | 31.41 | -4.45 | 8.91 | 0.609 | 1 | 0.4352 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2005 | 2018 | 4.918 | 4.522 | -0.3964 | 0.3144 | -1.261 | 0.2478 |
| last 20 years | 2005 | 2018 | 4.918 | 4.522 | -0.3964 | 0.3144 | -1.261 | 0.2478 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 92 | 30 | -1.1207 | 0.2140 | -5.238 | 0.9994 |
| ERL | 92 | 430 | 1.5418 | 0.2140 | 7.206 | <0.0001 |
Raw data with supporting information
![Raw data with supporting information for assessment of benzo[a]pyrene in sediment at Celtic Deep](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_svrn_s_01_sdmn_bap_au.jpg "Raw data with supporting information for assessment of benzo[a]pyrene in sediment at Celtic Deep")
Raw data with assessment
![Raw data with assessment of benzo[a]pyrene in sediment at Celtic Deep](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_svrn_s_01_sdmn_bap_da.jpg "Raw data with assessment of benzo[a]pyrene in sediment at Celtic Deep")
Assessment plot
![Assessment plot for benzo[a]pyrene in sediment at Celtic Deep](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_svrn_s_01_sdmn_bap_as.jpg "Assessment plot for benzo[a]pyrene in sediment at Celtic Deep")
PAH (parent) data
![PAH (parent) data for assessment of benzo[a]pyrene in sediment at Celtic Deep](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_svrn_s_01_sdmn_p(p)da.jpg "PAH (parent) data for assessment of benzo[a]pyrene in sediment at Celtic Deep")
PAH (parent) assessment
![PAH (parent) assessment of benzo[a]pyrene in sediment at Celtic Deep](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_svrn_s_01_sdmn_p(p)as.jpg "PAH (parent) assessment of benzo[a]pyrene in sediment at Celtic Deep")
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