CSEMP assessment of benzo[a]anthracene in sediment at Inner Firth of Clyde, Nth of Cumbrae
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 52.51 | 58.51 | -23.25 | 46.51 | | | |
| linear | 2 | 53.95 | 69.95 | -22.97 | 45.95 | 0.561 | 1 | 0.4537 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2002 | 2013 | 5.720 | 5.262 | -0.4583 | 0.5937 | -0.772 | 0.4832 |
| last 20 years | 2002 | 2013 | 5.720 | 5.262 | -0.4583 | 0.5937 | -0.772 | 0.4832 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 192.88 | 16.00 | -2.4895 | 0.4601 | -5.411 | 0.9972 |
| ERL | 192.88 | 261.00 | 0.3025 | 0.4601 | 0.657 | 0.2734 |
Raw data with supporting information
![Raw data with supporting information for assessment of benzo[a]anthracene in sediment at Inner Firth of Clyde, Nth of Cumbrae](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_clyd_f_01_sdmn_baa_au.jpg "Raw data with supporting information for assessment of benzo[a]anthracene in sediment at Inner Firth of Clyde, Nth of Cumbrae")
Raw data with assessment
![Raw data with assessment of benzo[a]anthracene in sediment at Inner Firth of Clyde, Nth of Cumbrae](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_clyd_f_01_sdmn_baa_da.jpg "Raw data with assessment of benzo[a]anthracene in sediment at Inner Firth of Clyde, Nth of Cumbrae")
Assessment plot
![Assessment plot for benzo[a]anthracene in sediment at Inner Firth of Clyde, Nth of Cumbrae](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_clyd_f_01_sdmn_baa_as.jpg "Assessment plot for benzo[a]anthracene in sediment at Inner Firth of Clyde, Nth of Cumbrae")
PAH (parent) data
![PAH (parent) data for assessment of benzo[a]anthracene in sediment at Inner Firth of Clyde, Nth of Cumbrae](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_clyd_f_01_sdmn_p(p)da.jpg "PAH (parent) data for assessment of benzo[a]anthracene in sediment at Inner Firth of Clyde, Nth of Cumbrae")
PAH (parent) assessment
![PAH (parent) assessment of benzo[a]anthracene in sediment at Inner Firth of Clyde, Nth of Cumbrae](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_clyd_f_01_sdmn_p(p)as.jpg "PAH (parent) assessment of benzo[a]anthracene in sediment at Inner Firth of Clyde, Nth of Cumbrae")
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