CSEMP assessment of naphthalene 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 | 34.56 | 40.56 | -14.28 | 28.56 | |||
linear | 2 | 36.22 | 52.22 | -14.11 | 28.22 | 0.342 | 1 | 0.5589 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2005 | 2018 | 3.824 | 4.149 | 0.3247 | 0.5467 | 0.594 | 0.5845 |
last 20 years | 2005 | 2018 | 3.824 | 4.149 | 0.3247 | 0.5467 | 0.594 | 0.5845 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 63.34 | 8.00 | -2.0691 | 0.4158 | -4.976 | 0.9962 |
ERL | 63.34 | 160.00 | 0.9267 | 0.4158 | 2.228 | 0.0449 |
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 : Naphthalene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : Forth_LowerForthEstuary_se02, Tancred (Forth)
Determinand : Naphthalene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020