CSEMP assessment of benzo[a]anthracene in sediment at Forth Estuary
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 71.87 | 74.12 | -32.94 | 65.87 | | | |
| linear | 2 | 73.62 | 78.19 | -32.81 | 65.62 | 0.253 | 1 | 0.6150 |
| smooth (df = 2) | 3 | 74.28 | 82.61 | -32.14 | 64.28 | 1.342 | 1 | 0.2466 |
| smooth (df = 3) | 4 | 76.27 | 90.67 | -32.14 | 64.27 | 0.005 | 1 | 0.9425 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2018 | 5.220 | 4.859 | -0.3606 | 0.7129 | -0.506 | 0.6252 |
| last 20 years | 2000 | 2018 | 5.220 | 4.859 | -0.3606 | 0.7129 | -0.506 | 0.6252 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 128.91 | 16.00 | -2.0866 | 0.4219 | -4.945 | 0.9996 |
| ERL | 128.91 | 261.00 | 0.7054 | 0.4219 | 1.672 | 0.0644 |
Raw data with supporting information
![Raw data with supporting information for assessment of benzo[a]anthracene in sediment at Forth Estuary](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_fr___sdmn_baa_au.jpg "Raw data with supporting information for assessment of benzo[a]anthracene in sediment at Forth Estuary")
Raw data with assessment
![Raw data with assessment of benzo[a]anthracene in sediment at Forth Estuary](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_fr___sdmn_baa_da.jpg "Raw data with assessment of benzo[a]anthracene in sediment at Forth Estuary")
Assessment plot
![Assessment plot for benzo[a]anthracene in sediment at Forth Estuary](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_fr___sdmn_baa_as.jpg "Assessment plot for benzo[a]anthracene in sediment at Forth Estuary")
PAH (parent) data
![PAH (parent) data for assessment of benzo[a]anthracene in sediment at Forth Estuary](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_fr___sdmn_p(p)da.jpg "PAH (parent) data for assessment of benzo[a]anthracene in sediment at Forth Estuary")
PAH (parent) assessment
![PAH (parent) assessment of benzo[a]anthracene in sediment at Forth Estuary](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_fr___sdmn_p(p)as.jpg "PAH (parent) assessment of benzo[a]anthracene in sediment at Forth Estuary")
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