CSEMP assessment of benzo[a]anthracene in sediment at Off Tyne
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | -31.27 | -27.67 | 18.63 | -37.27 | | | |
| linear | 2 | -29.32 | -21.32 | 18.66 | -37.32 | 0.056 | 1 | 0.8130 |
| smooth (df = 2) | 3 | -27.85 | -11.19 | 18.93 | -37.85 | 0.531 | 1 | 0.4661 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2005 | 2017 | 5.371 | 5.433 | 0.06188 | 0.26108 | 0.237 | 0.8205 |
| last 20 years | 2005 | 2017 | 5.371 | 5.433 | 0.06188 | 0.26108 | 0.237 | 0.8205 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 228.79 | 16.00 | -2.6602 | 0.1745 | -15.248 | 1.0000 |
| ERL | 228.79 | 261.00 | 0.1317 | 0.1745 | 0.755 | 0.2394 |
Raw data with supporting information
![Raw data with supporting information for assessment of benzo[a]anthracene in sediment at Off Tyne](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_tynts_ttn_01_sdmn_baa_au.jpg "Raw data with supporting information for assessment of benzo[a]anthracene in sediment at Off Tyne")
Raw data with assessment
![Raw data with assessment of benzo[a]anthracene in sediment at Off Tyne](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_tynts_ttn_01_sdmn_baa_da.jpg "Raw data with assessment of benzo[a]anthracene in sediment at Off Tyne")
Assessment plot
![Assessment plot for benzo[a]anthracene in sediment at Off Tyne](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_tynts_ttn_01_sdmn_baa_as.jpg "Assessment plot for benzo[a]anthracene in sediment at Off Tyne")
PAH (parent) data
![PAH (parent) data for assessment of benzo[a]anthracene in sediment at Off Tyne](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_tynts_ttn_01_sdmn_p(p)da.jpg "PAH (parent) data for assessment of benzo[a]anthracene in sediment at Off Tyne")
PAH (parent) assessment
![PAH (parent) assessment of benzo[a]anthracene in sediment at Off Tyne](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_tynts_ttn_01_sdmn_p(p)as.jpg "PAH (parent) assessment of benzo[a]anthracene in sediment at Off Tyne")
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