CSEMP assessment of benzo[g,h,i]perylene in sediment at Tancred (Forth)
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 34.70 | 40.70 | -14.35 | 28.70 | |||
linear | 2 | 36.69 | 52.69 | -14.35 | 28.69 | 0.013 | 1 | 0.9091 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2005 | 2018 | 4.099 | 4.163 | 0.0636 | 0.5572 | 0.114 | 0.9146 |
last 20 years | 2005 | 2018 | 4.099 | 4.163 | 0.0636 | 0.5572 | 0.114 | 0.9146 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 64.27 | 80.00 | 0.2190 | 0.4262 | 0.514 | 0.3172 |
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 : Forth_LowerForthEstuary_se02, Tancred (Forth)
Determinand : Benzo[g,h,i]perylene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Forth_LowerForthEstuary_se02, Tancred (Forth)
Determinand : Benzo[g,h,i]perylene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020