CSEMP assessment of benzo[g,h,i]perylene 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 | -4.37 | -0.77 | 5.19 | -10.37 | |||
linear | 2 | -3.70 | 4.30 | 5.85 | -11.70 | 1.322 | 1 | 0.2503 |
smooth (df = 2) | 3 | -1.99 | 14.68 | 5.99 | -11.99 | 0.290 | 1 | 0.5903 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2005 | 2017 | 5.384 | 5.727 | 0.3427 | 0.2885 | 1.188 | 0.2798 |
last 20 years | 2005 | 2017 | 5.384 | 5.727 | 0.3427 | 0.2885 | 1.188 | 0.2798 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 307.09 | 80.00 | -1.3451 | 0.1951 | -6.893 | 0.9998 |
Raw data with supporting information
Raw data with assessment
Assessment plot
PAH (parent) data
PAH (parent) assessment
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for pah_(parent) in sediment
- Accessment criteria for pah_(parent) in sediment
Media : Sediment (unsieved)
Station : TyneTees_TTInter_se01 (Off Tyne)
Determinand : Benzo[g,h,i]perylene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : TyneTees_TTInter_se01 (Off Tyne)
Determinand : Benzo[g,h,i]perylene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020