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 | 123.86 | 126.11 | -58.93 | 117.86 | | | |
| linear | 2 | 121.52 | 126.09 | -56.76 | 113.52 | 4.335 | 1 | 0.0373 |
| smooth (df = 2) | 3 | 117.32 | 125.65 | -53.66 | 107.32 | 6.204 | 1 | 0.0127 |
| smooth (df = 3) | 4 | 118.19 | 132.59 | -53.09 | 106.19 | 1.130 | 1 | 0.2878 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2017 | 5.062 | 3.768 | -1.2939 | 0.4633 | -2.793 | 0.0235 |
| last 20 years | 2000 | 2017 | 5.062 | 3.768 | -1.2939 | 0.4633 | -2.793 | 0.0235 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 43.3 | 30.0 | -0.3669 | 0.3497 | -1.049 | 0.8376 |
| ERL | 43.3 | 430.0 | 2.2957 | 0.3497 | 6.566 | <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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