CSEMP assessment of benzo[a]anthracene in sediment at Bann Estuary
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 253.08 | 254.88 | -123.54 | 247.08 | | | |
| linear | 2 | 254.90 | 258.46 | -123.45 | 246.90 | 0.182 | 1 | 0.6694 |
| smooth (df = 2) | 3 | 254.97 | 261.22 | -122.48 | 244.97 | 1.932 | 1 | 0.1645 |
| smooth (df = 3) | 4 | 255.68 | 265.97 | -121.84 | 243.68 | 1.285 | 1 | 0.2570 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2018 | 4.560 | 4.192 | -0.3680 | 0.8594 | -0.428 | 0.6768 |
| last 20 years | 2000 | 2018 | 4.560 | 4.192 | -0.3680 | 0.8594 | -0.428 | 0.6768 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 66.17 | 16.00 | -1.4196 | 0.4911 | -2.891 | 0.9927 |
| ERL | 66.17 | 261.00 | 1.3723 | 0.4911 | 2.794 | 0.0087 |
Raw data with supporting information
![Raw data with supporting information for assessment of benzo[a]anthracene in sediment at Bann Estuary](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_b_01_sdmn_baa_au.jpg "Raw data with supporting information for assessment of benzo[a]anthracene in sediment at Bann Estuary")
Raw data with assessment
![Raw data with assessment of benzo[a]anthracene in sediment at Bann Estuary](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_b_01_sdmn_baa_da.jpg "Raw data with assessment of benzo[a]anthracene in sediment at Bann Estuary")
Assessment plot
![Assessment plot for benzo[a]anthracene in sediment at Bann Estuary](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_b_01_sdmn_baa_as.jpg "Assessment plot for benzo[a]anthracene in sediment at Bann Estuary")
PAH (parent) data
![PAH (parent) data for assessment of benzo[a]anthracene in sediment at Bann Estuary](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_b_01_sdmn_p(p)da.jpg "PAH (parent) data for assessment of benzo[a]anthracene in sediment at Bann Estuary")
PAH (parent) assessment
![PAH (parent) assessment of benzo[a]anthracene in sediment at Bann Estuary](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_b_01_sdmn_p(p)as.jpg "PAH (parent) assessment of benzo[a]anthracene in sediment at Bann Estuary")
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