CSEMP assessment of benzo[a]pyrene in sediment at Lough Foyle
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 129.89 | 131.89 | -61.94 | 123.89 | | | |
| linear | 2 | 128.52 | 132.52 | -60.26 | 120.52 | 3.372 | 1 | 0.0663 |
| smooth (df = 2) | 3 | 122.48 | 129.63 | -56.24 | 112.48 | 8.034 | 1 | 0.0046 |
| smooth (df = 3) | 4 | 123.35 | 135.35 | -55.68 | 111.35 | 1.129 | 1 | 0.2880 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2018 | 5.037 | 3.906 | -1.1311 | 0.4311 | -2.624 | 0.0276 |
| last 20 years | 2000 | 2018 | 5.037 | 3.906 | -1.1311 | 0.4311 | -2.624 | 0.0276 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 49.7 | 30.0 | -0.5047 | 0.3139 | -1.608 | 0.9288 |
| ERL | 49.7 | 430.0 | 2.1579 | 0.3139 | 6.875 | <0.0001 |
Raw data with supporting information
![Raw data with supporting information for assessment of benzo[a]pyrene in sediment at Lough Foyle](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_f_01_sdmn_bap_au.jpg "Raw data with supporting information for assessment of benzo[a]pyrene in sediment at Lough Foyle")
Raw data with assessment
![Raw data with assessment of benzo[a]pyrene in sediment at Lough Foyle](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_f_01_sdmn_bap_da.jpg "Raw data with assessment of benzo[a]pyrene in sediment at Lough Foyle")
Assessment plot
![Assessment plot for benzo[a]pyrene in sediment at Lough Foyle](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_f_01_sdmn_bap_as.jpg "Assessment plot for benzo[a]pyrene in sediment at Lough Foyle")
PAH (parent) data
![PAH (parent) data for assessment of benzo[a]pyrene in sediment at Lough Foyle](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_f_01_sdmn_p(p)da.jpg "PAH (parent) data for assessment of benzo[a]pyrene in sediment at Lough Foyle")
PAH (parent) assessment
![PAH (parent) assessment of benzo[a]pyrene in sediment at Lough Foyle](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_mnchmln_f_01_sdmn_p(p)as.jpg "PAH (parent) assessment of benzo[a]pyrene in sediment at Lough Foyle")
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