CSEMP assessment of benzo[a]pyrene 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 | 111.65 | 113.65 | -52.82 | 105.65 | | | |
| linear | 2 | 108.52 | 112.52 | -50.26 | 100.52 | 5.127 | 1 | 0.0236 |
| smooth (df = 2) | 3 | 110.46 | 117.60 | -50.23 | 100.46 | 0.064 | 1 | 0.8010 |
| smooth (df = 3) | 4 | 111.25 | 123.25 | -49.62 | 99.25 | 1.211 | 1 | 0.2711 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2002 | 2017 | 4.959 | 6.418 | 1.4596 | 0.5749 | 2.539 | 0.0294 |
| last 20 years | 2002 | 2017 | 4.959 | 6.418 | 1.4596 | 0.5749 | 2.539 | 0.0294 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 613 | 30 | -3.0171 | 0.3530 | -8.547 | 1.0000 |
| ERL | 613 | 430 | -0.3545 | 0.3530 | -1.004 | 0.8305 |
Raw data with supporting information
![Raw data with supporting information for assessment of benzo[a]pyrene 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_bap_au.jpg "Raw data with supporting information for assessment of benzo[a]pyrene in sediment at inner (Firth of Clyde)")
Raw data with assessment
![Raw data with assessment of benzo[a]pyrene 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_bap_da.jpg "Raw data with assessment of benzo[a]pyrene in sediment at inner (Firth of Clyde)")
Assessment plot
![Assessment plot for benzo[a]pyrene 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_bap_as.jpg "Assessment plot for benzo[a]pyrene in sediment at inner (Firth of Clyde)")
PAH (parent) data
![PAH (parent) data for assessment of benzo[a]pyrene 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]pyrene in sediment at inner (Firth of Clyde)")
PAH (parent) assessment
![PAH (parent) assessment of benzo[a]pyrene 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]pyrene in sediment at inner (Firth of Clyde)")
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