CSEMP assessment of benzo[a]anthracene in sediment at Fladen Ground
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 56.86 | 59.43 | -25.43 | 50.86 | | | |
| linear | 2 | 57.15 | 62.48 | -24.58 | 49.15 | 1.705 | 1 | 0.1916 |
| smooth (df = 2) | 3 | 59.15 | 69.15 | -24.57 | 49.15 | 0.003 | 1 | 0.9586 |
| smooth (df = 3) | 4 | 60.73 | 78.73 | -24.37 | 48.73 | 0.414 | 1 | 0.5198 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2005 | 2018 | 1.1773 | 2.0431 | 0.8658 | 0.6354 | 1.363 | 0.2101 |
| last 20 years | 2005 | 2018 | 1.1773 | 2.0431 | 0.8658 | 0.6354 | 1.363 | 0.2101 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 7.71 | 16.00 | 0.729 | 0.438 | 1.667 | 0.0670 |
| ERL | 7.71 | 261.00 | 3.521 | 0.438 | 8.049 | <0.0001 |
Raw data with supporting information
![Raw data with supporting information for assessment of benzo[a]anthracene in sediment at Fladen Ground](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_fl__02_sdmn_baa_au.jpg "Raw data with supporting information for assessment of benzo[a]anthracene in sediment at Fladen Ground")
Raw data with assessment
![Raw data with assessment of benzo[a]anthracene in sediment at Fladen Ground](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_fl__02_sdmn_baa_da.jpg "Raw data with assessment of benzo[a]anthracene in sediment at Fladen Ground")
Assessment plot
![Assessment plot for benzo[a]anthracene in sediment at Fladen Ground](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_fl__02_sdmn_baa_as.jpg "Assessment plot for benzo[a]anthracene in sediment at Fladen Ground")
PAH (parent) data
![PAH (parent) data for assessment of benzo[a]anthracene in sediment at Fladen Ground](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_fl__02_sdmn_p(p)da.jpg "PAH (parent) data for assessment of benzo[a]anthracene in sediment at Fladen Ground")
PAH (parent) assessment
![PAH (parent) assessment of benzo[a]anthracene in sediment at Fladen Ground](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_fl__02_sdmn_p(p)as.jpg "PAH (parent) assessment of benzo[a]anthracene in sediment at Fladen Ground")
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