CSEMP assessment of benzo[a]anthracene in biota at Roa Island (Morecambe Bay)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 55.41 | 61.41 | -24.70 | 49.41 | | | |
| linear | 2 | 55.65 | 71.65 | -23.83 | 47.65 | 1.758 | 1 | 0.1849 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2002 | 2015 | 1.0795 | -0.4790 | -1.5585 | 1.1177 | -1.394 | 0.2357 |
| last 20 years | 2002 | 2015 | 1.0795 | -0.4790 | -1.5585 | 1.1177 | -1.394 | 0.2357 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.619 | 0.408 | -0.4187 | 0.8049 | -0.520 | 0.6848 |
| EAC | 0.619 | 13.040 | 3.0470 | 0.8049 | 3.785 | 0.0097 |
Raw data with supporting information
![Raw data with supporting information for assessment of benzo[a]anthracene in biota at Roa Island (Morecambe Bay)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/shellfish_irshs_mrc_01_blms_baa_au.jpg "Raw data with supporting information for assessment of benzo[a]anthracene in biota at Roa Island (Morecambe Bay)")
Raw data with assessment
![Raw data with assessment of benzo[a]anthracene in biota at Roa Island (Morecambe Bay)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/shellfish_irshs_mrc_01_blms_baa_da.jpg "Raw data with assessment of benzo[a]anthracene in biota at Roa Island (Morecambe Bay)")
Assessment plot
![Assessment plot for benzo[a]anthracene in biota at Roa Island (Morecambe Bay)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/shellfish_irshs_mrc_01_blms_baa_as.jpg "Assessment plot for benzo[a]anthracene in biota at Roa Island (Morecambe Bay)")
PAH (parent) data
![PAH (parent) data for assessment of benzo[a]anthracene in biota at Roa Island (Morecambe Bay)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/shellfish_irshs_mrc_01_blms_p(p)da.jpg "PAH (parent) data for assessment of benzo[a]anthracene in biota at Roa Island (Morecambe Bay)")
PAH (parent) assessment
![PAH (parent) assessment of benzo[a]anthracene in biota at Roa Island (Morecambe Bay)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/shellfish_irshs_mrc_01_blms_p(p)as.jpg "PAH (parent) assessment of benzo[a]anthracene in biota at Roa Island (Morecambe Bay)")
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