CSEMP assessment of benzo[a]anthracene in sediment at Bann Estuary
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 234.94 | 236.94 | -114.47 | 228.94 | | | |
| linear | 2 | 236.55 | 240.55 | -114.28 | 228.55 | 0.387 | 1 | 0.5340 |
| smooth (df = 2) | 3 | 237.06 | 244.20 | -113.53 | 227.06 | 1.498 | 1 | 0.2210 |
| smooth (df = 3) | 4 | 237.87 | 249.87 | -112.93 | 225.87 | 1.189 | 1 | 0.2755 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2017 | 4.629 | 4.060 | -0.5689 | 0.9079 | -0.627 | 0.5449 |
| last 20 years | 2000 | 2017 | 4.629 | 4.060 | -0.5689 | 0.9079 | -0.627 | 0.5449 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 58 | 16 | -1.2878 | 0.5279 | -2.440 | 0.9826 |
| ERL | 58 | 261 | 1.5041 | 0.5279 | 2.849 | 0.0086 |
Raw data with supporting information
![Raw data with supporting information for assessment of benzo[a]anthracene in sediment at Bann Estuary](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_b_01_sdmn_baa_au.jpg "Raw data with supporting information for assessment of benzo[a]anthracene in sediment at Bann Estuary")
Raw data with assessment
![Raw data with assessment of benzo[a]anthracene in sediment at Bann Estuary](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_b_01_sdmn_baa_da.jpg "Raw data with assessment of benzo[a]anthracene in sediment at Bann Estuary")
Assessment plot
![Assessment plot for benzo[a]anthracene in sediment at Bann Estuary](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_b_01_sdmn_baa_as.jpg "Assessment plot for benzo[a]anthracene in sediment at Bann Estuary")
PAH (parent) data
![PAH (parent) data for assessment of benzo[a]anthracene in sediment at Bann Estuary](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_b_01_sdmn_p(p)da.jpg "PAH (parent) data for assessment of benzo[a]anthracene in sediment at Bann Estuary")
PAH (parent) assessment
![PAH (parent) assessment of benzo[a]anthracene in sediment at Bann Estuary](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_b_01_sdmn_p(p)as.jpg "PAH (parent) assessment of benzo[a]anthracene in sediment at Bann Estuary")
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