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 | 16.21 | 19.81 | -5.11 | 10.21 | | | |
| linear | 2 | 17.93 | 25.93 | -4.97 | 9.93 | 0.279 | 1 | 0.5974 |
| smooth (df = 2) | 3 | 19.67 | 36.33 | -4.83 | 9.67 | 0.266 | 1 | 0.6057 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2005 | 2016 | 4.881 | 4.697 | -0.1841 | 0.3476 | -0.530 | 0.6154 |
| last 20 years | 2005 | 2016 | 4.881 | 4.697 | -0.1841 | 0.3476 | -0.530 | 0.6154 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 109.6 | 30.0 | -1.2954 | 0.2408 | -5.379 | 0.9992 |
| ERL | 109.6 | 430.0 | 1.3672 | 0.2408 | 5.677 | 0.0006 |
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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