CSEMP assessment of benzo[a]pyrene 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 | 248.86 | 250.66 | -121.43 | 242.86 | | | |
| linear | 2 | 250.57 | 254.13 | -121.29 | 242.57 | 0.287 | 1 | 0.5922 |
| smooth (df = 2) | 3 | 249.52 | 255.77 | -119.76 | 239.52 | 3.053 | 1 | 0.0806 |
| smooth (df = 3) | 4 | 249.86 | 260.15 | -118.93 | 237.86 | 1.661 | 1 | 0.1975 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2018 | 4.552 | 4.128 | -0.4235 | 0.7888 | -0.537 | 0.6020 |
| last 20 years | 2000 | 2018 | 4.552 | 4.128 | -0.4235 | 0.7888 | -0.537 | 0.6020 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 62.1 | 30.0 | -0.7272 | 0.4506 | -1.614 | 0.9326 |
| ERL | 62.1 | 430.0 | 1.9354 | 0.4506 | 4.295 | 0.0006 |
Raw data with supporting information
![Raw data with supporting information for assessment of benzo[a]pyrene in sediment at Bann Estuary](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_b_01_sdmn_bap_au.jpg "Raw data with supporting information for assessment of benzo[a]pyrene in sediment at Bann Estuary")
Raw data with assessment
![Raw data with assessment of benzo[a]pyrene in sediment at Bann Estuary](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_b_01_sdmn_bap_da.jpg "Raw data with assessment of benzo[a]pyrene in sediment at Bann Estuary")
Assessment plot
![Assessment plot for benzo[a]pyrene in sediment at Bann Estuary](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_b_01_sdmn_bap_as.jpg "Assessment plot for benzo[a]pyrene in sediment at Bann Estuary")
PAH (parent) data
![PAH (parent) data for assessment of benzo[a]pyrene 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]pyrene in sediment at Bann Estuary")
PAH (parent) assessment
![PAH (parent) assessment of benzo[a]pyrene 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]pyrene in sediment at Bann Estuary")
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