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 | 231.90 | 233.90 | -112.95 | 225.90 | | | |
| linear | 2 | 233.27 | 237.27 | -112.63 | 225.27 | 0.634 | 1 | 0.4259 |
| smooth (df = 2) | 3 | 232.97 | 240.11 | -111.48 | 222.97 | 2.299 | 1 | 0.1295 |
| smooth (df = 3) | 4 | 233.40 | 245.40 | -110.70 | 221.40 | 1.573 | 1 | 0.2098 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2017 | 4.634 | 3.969 | -0.6653 | 0.8250 | -0.806 | 0.4387 |
| last 20 years | 2000 | 2017 | 4.634 | 3.969 | -0.6653 | 0.8250 | -0.806 | 0.4387 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 52.9 | 30.0 | -0.5678 | 0.4794 | -1.184 | 0.8681 |
| ERL | 52.9 | 430.0 | 2.0948 | 0.4794 | 4.369 | 0.0007 |
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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