CSEMP assessment of benzo[a]anthracene in sediment at Lough Foyle
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 149.57 | 151.82 | -71.78 | 143.57 | | | |
| linear | 2 | 149.88 | 154.45 | -70.94 | 141.88 | 1.687 | 1 | 0.1940 |
| smooth (df = 2) | 3 | 148.47 | 156.80 | -69.23 | 138.47 | 3.411 | 1 | 0.0648 |
| smooth (df = 3) | 4 | 148.54 | 162.94 | -68.27 | 136.54 | 1.933 | 1 | 0.1644 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2017 | 3.846 | 3.033 | -0.8135 | 0.6012 | -1.353 | 0.2090 |
| last 20 years | 2000 | 2017 | 3.846 | 3.033 | -0.8135 | 0.6012 | -1.353 | 0.2090 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 20.75 | 16.00 | -0.2600 | 0.3225 | -0.806 | 0.7795 |
| ERL | 20.75 | 261.00 | 2.5319 | 0.3225 | 7.850 | <0.0001 |
Raw data with supporting information
![Raw data with supporting information for assessment of benzo[a]anthracene in sediment at Lough Foyle](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_f_01_sdmn_baa_au.jpg "Raw data with supporting information for assessment of benzo[a]anthracene in sediment at Lough Foyle")
Raw data with assessment
![Raw data with assessment of benzo[a]anthracene in sediment at Lough Foyle](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_f_01_sdmn_baa_da.jpg "Raw data with assessment of benzo[a]anthracene in sediment at Lough Foyle")
Assessment plot
![Assessment plot for benzo[a]anthracene in sediment at Lough Foyle](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_f_01_sdmn_baa_as.jpg "Assessment plot for benzo[a]anthracene in sediment at Lough Foyle")
PAH (parent) data
![PAH (parent) data for assessment of benzo[a]anthracene in sediment at Lough Foyle](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_f_01_sdmn_p(p)da.jpg "PAH (parent) data for assessment of benzo[a]anthracene in sediment at Lough Foyle")
PAH (parent) assessment
![PAH (parent) assessment of benzo[a]anthracene in sediment at Lough Foyle](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_f_01_sdmn_p(p)as.jpg "PAH (parent) assessment of benzo[a]anthracene in sediment at Lough Foyle")
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