CSEMP assessment of benzo[a]pyrene in sediment at Sea of Hebrides
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 147.77 | 150.77 | -70.89 | 141.77 | | | |
| linear | 2 | 148.74 | 155.14 | -70.37 | 140.74 | 1.033 | 1 | 0.3094 |
| smooth (df = 2) | 3 | 150.35 | 162.85 | -70.17 | 140.35 | 0.390 | 1 | 0.5324 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2006 | 2016 | 2.5562 | 2.8610 | 0.30474 | 0.28329 | 1.076 | 0.3177 |
| last 20 years | 2006 | 2016 | 2.5562 | 2.8610 | 0.30474 | 0.28329 | 1.076 | 0.3177 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 17.5 | 30.0 | 0.540 | 0.180 | 3.007 | 0.0099 |
| ERL | 17.5 | 430.0 | 3.203 | 0.180 | 17.829 | <0.0001 |
Raw data with supporting information
![Raw data with supporting information for assessment of benzo[a]pyrene in sediment at Sea of Hebrides](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_s_01_sdmn_bap_au.jpg "Raw data with supporting information for assessment of benzo[a]pyrene in sediment at Sea of Hebrides")
Raw data with assessment
![Raw data with assessment of benzo[a]pyrene in sediment at Sea of Hebrides](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_s_01_sdmn_bap_da.jpg "Raw data with assessment of benzo[a]pyrene in sediment at Sea of Hebrides")
Assessment plot
![Assessment plot for benzo[a]pyrene in sediment at Sea of Hebrides](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_s_01_sdmn_bap_as.jpg "Assessment plot for benzo[a]pyrene in sediment at Sea of Hebrides")
PAH (parent) data
![PAH (parent) data for assessment of benzo[a]pyrene in sediment at Sea of Hebrides](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_s_01_sdmn_p(p)da.jpg "PAH (parent) data for assessment of benzo[a]pyrene in sediment at Sea of Hebrides")
PAH (parent) assessment
![PAH (parent) assessment of benzo[a]pyrene in sediment at Sea of Hebrides](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_s_01_sdmn_p(p)as.jpg "PAH (parent) assessment of benzo[a]pyrene in sediment at Sea of Hebrides")
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