CSEMP assessment of benzo[a]pyrene in sediment at Tancred (Forth)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 35.48 | 44.48 | -14.74 | 29.48 | | | |
| linear | 2 | 37.44 | 69.44 | -14.72 | 29.44 | 0.038 | 1 | 0.8456 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2005 | 2012 | 4.149 | 4.231 | 0.0819 | 0.4206 | 0.195 | 0.8580 |
| last 20 years | 2005 | 2012 | 4.149 | 4.231 | 0.0819 | 0.4206 | 0.195 | 0.8580 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 68.8 | 30.0 | -0.8301 | 0.2899 | -2.863 | 0.9678 |
| ERL | 68.8 | 430.0 | 1.8324 | 0.2899 | 6.320 | 0.0040 |
Raw data with supporting information
![Raw data with supporting information for assessment of benzo[a]pyrene in sediment at Tancred (Forth)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_fr__02_sdmn_bap_au.jpg "Raw data with supporting information for assessment of benzo[a]pyrene in sediment at Tancred (Forth)")
Raw data with assessment
![Raw data with assessment of benzo[a]pyrene in sediment at Tancred (Forth)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_fr__02_sdmn_bap_da.jpg "Raw data with assessment of benzo[a]pyrene in sediment at Tancred (Forth)")
Assessment plot
![Assessment plot for benzo[a]pyrene in sediment at Tancred (Forth)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_fr__02_sdmn_bap_as.jpg "Assessment plot for benzo[a]pyrene in sediment at Tancred (Forth)")
PAH (parent) data
![PAH (parent) data for assessment of benzo[a]pyrene in sediment at Tancred (Forth)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_fr__02_sdmn_p(p)da.jpg "PAH (parent) data for assessment of benzo[a]pyrene in sediment at Tancred (Forth)")
PAH (parent) assessment
![PAH (parent) assessment of benzo[a]pyrene in sediment at Tancred (Forth)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_fr__02_sdmn_p(p)as.jpg "PAH (parent) assessment of benzo[a]pyrene in sediment at Tancred (Forth)")
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