CSEMP assessment of benzo[a]pyrene in sediment at inner (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 116.58 | 118.38 | -55.29 | 110.58 | | | |
| linear | 2 | 114.86 | 118.42 | -53.43 | 106.86 | 3.720 | 1 | 0.0538 |
| smooth (df = 2) | 3 | 116.20 | 122.45 | -53.10 | 106.20 | 0.657 | 1 | 0.4176 |
| smooth (df = 3) | 4 | 117.85 | 128.13 | -52.92 | 105.85 | 0.356 | 1 | 0.5506 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2002 | 2018 | 5.076 | 6.233 | 1.1566 | 0.5563 | 2.079 | 0.0618 |
| last 20 years | 2002 | 2018 | 5.076 | 6.233 | 1.1566 | 0.5563 | 2.079 | 0.0618 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 509.2 | 30.0 | -2.8317 | 0.3373 | -8.395 | 1.0000 |
| ERL | 509.2 | 430.0 | -0.1691 | 0.3373 | -0.501 | 0.6870 |
Raw data with supporting information
![Raw data with supporting information for assessment of benzo[a]pyrene in sediment at inner (Firth of Clyde)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_frth_f_clyd_(n)__sdmn_bap_au.jpg "Raw data with supporting information for assessment of benzo[a]pyrene in sediment at inner (Firth of Clyde)")
Raw data with assessment
![Raw data with assessment of benzo[a]pyrene in sediment at inner (Firth of Clyde)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_frth_f_clyd_(n)__sdmn_bap_da.jpg "Raw data with assessment of benzo[a]pyrene in sediment at inner (Firth of Clyde)")
Assessment plot
![Assessment plot for benzo[a]pyrene in sediment at inner (Firth of Clyde)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_frth_f_clyd_(n)__sdmn_bap_as.jpg "Assessment plot for benzo[a]pyrene in sediment at inner (Firth of Clyde)")
PAH (parent) data
![PAH (parent) data for assessment of benzo[a]pyrene in sediment at inner (Firth of Clyde)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_frth_f_clyd_(n)__sdmn_p(p)da.jpg "PAH (parent) data for assessment of benzo[a]pyrene in sediment at inner (Firth of Clyde)")
PAH (parent) assessment
![PAH (parent) assessment of benzo[a]pyrene in sediment at inner (Firth of Clyde)](/projects/data_management/uk/merman/assessments_and_data_access/csemp/assessments/images/sediment_frth_f_clyd_(n)__sdmn_p(p)as.jpg "PAH (parent) assessment of benzo[a]pyrene in sediment at inner (Firth of Clyde)")
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