CSEMP assessment of benzo[a]anthracene in sediment at inner (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 106.24 | 108.24 | -50.12 | 100.24 | | | |
| linear | 2 | 104.38 | 108.38 | -48.19 | 96.38 | 3.851 | 1 | 0.0497 |
| smooth (df = 2) | 3 | 106.35 | 113.49 | -48.17 | 96.35 | 0.038 | 1 | 0.8459 |
| smooth (df = 3) | 4 | 103.91 | 115.91 | -45.96 | 91.91 | 4.434 | 1 | 0.0352 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2002 | 2017 | 4.905 | 6.012 | 1.1067 | 0.5183 | 2.135 | 0.0585 |
| last 20 years | 2002 | 2017 | 4.905 | 6.012 | 1.1067 | 0.5183 | 2.135 | 0.0585 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 408.2 | 16.0 | -3.239 | 0.320 | -10.119 | 1.0000 |
| ERL | 408.2 | 261.0 | -0.447 | 0.320 | -1.397 | 0.9037 |
Raw data with supporting information
![Raw data with supporting information for assessment of benzo[a]anthracene in sediment at inner (Firth of Clyde)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_frth_f_clyd_(n)__sdmn_baa_au.jpg "Raw data with supporting information for assessment of benzo[a]anthracene in sediment at inner (Firth of Clyde)")
Raw data with assessment
![Raw data with assessment of benzo[a]anthracene in sediment at inner (Firth of Clyde)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_frth_f_clyd_(n)__sdmn_baa_da.jpg "Raw data with assessment of benzo[a]anthracene in sediment at inner (Firth of Clyde)")
Assessment plot
![Assessment plot for benzo[a]anthracene in sediment at inner (Firth of Clyde)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_frth_f_clyd_(n)__sdmn_baa_as.jpg "Assessment plot for benzo[a]anthracene in sediment at inner (Firth of Clyde)")
PAH (parent) data
![PAH (parent) data for assessment of benzo[a]anthracene in sediment at inner (Firth of Clyde)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_frth_f_clyd_(n)__sdmn_p(p)da.jpg "PAH (parent) data for assessment of benzo[a]anthracene in sediment at inner (Firth of Clyde)")
PAH (parent) assessment
![PAH (parent) assessment of benzo[a]anthracene in sediment at inner (Firth of Clyde)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_frth_f_clyd_(n)__sdmn_p(p)as.jpg "PAH (parent) assessment of benzo[a]anthracene in sediment at inner (Firth of Clyde)")
Related pages
