CSEMP assessment of benzo[a]anthracene in biota at Mostyn Bank (Dee)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 62.06 | 65.66 | -28.03 | 56.06 | | | |
| linear | 2 | 55.52 | 63.52 | -23.76 | 47.52 | 8.541 | 1 | 0.0035 |
| smooth (df = 2) | 3 | 56.07 | 72.74 | -23.04 | 46.07 | 1.449 | 1 | 0.2287 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2003 | 2018 | 0.8908 | -1.0352 | -1.9260 | 0.5076 | -3.794 | 0.0090 |
| last 20 years | 2003 | 2018 | 0.8908 | -1.0352 | -1.9260 | 0.5076 | -3.794 | 0.0090 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.355 | 0.408 | 0.137 | 0.334 | 0.412 | 0.3474 |
| EAC | 0.355 | 13.040 | 3.603 | 0.334 | 10.795 | <0.0001 |
Raw data with supporting information
![Raw data with supporting information for assessment of benzo[a]anthracene in biota at Mostyn Bank (Dee)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/shellfish_irshs_dnw_01_blms_baa_au.jpg "Raw data with supporting information for assessment of benzo[a]anthracene in biota at Mostyn Bank (Dee)")
Raw data with assessment
![Raw data with assessment of benzo[a]anthracene in biota at Mostyn Bank (Dee)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/shellfish_irshs_dnw_01_blms_baa_da.jpg "Raw data with assessment of benzo[a]anthracene in biota at Mostyn Bank (Dee)")
Assessment plot
![Assessment plot for benzo[a]anthracene in biota at Mostyn Bank (Dee)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/shellfish_irshs_dnw_01_blms_baa_as.jpg "Assessment plot for benzo[a]anthracene in biota at Mostyn Bank (Dee)")
PAH (parent) data
![PAH (parent) data for assessment of benzo[a]anthracene in biota at Mostyn Bank (Dee)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/shellfish_irshs_dnw_01_blms_p(p)da.jpg "PAH (parent) data for assessment of benzo[a]anthracene in biota at Mostyn Bank (Dee)")
PAH (parent) assessment
![PAH (parent) assessment of benzo[a]anthracene in biota at Mostyn Bank (Dee)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/shellfish_irshs_dnw_01_blms_p(p)as.jpg "PAH (parent) assessment of benzo[a]anthracene in biota at Mostyn Bank (Dee)")
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