CSEMP assessment of indeno[123-cd]pyrene in sediment at Bann Estuary
Statistical analysis
Trend assessment
Analysis of variance
Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) | |
---|---|---|---|---|---|---|---|---|
mean | 1 | 229.99 | 231.79 | -111.99 | 223.99 | |||
linear | 2 | 231.09 | 234.65 | -111.55 | 223.09 | 0.895 | 1 | 0.3442 |
smooth (df = 2) | 3 | 225.28 | 231.53 | -107.64 | 215.28 | 7.817 | 1 | 0.0052 |
smooth (df = 3) | 4 | 226.42 | 236.70 | -107.21 | 214.42 | 0.861 | 1 | 0.3534 |
Change in log concentration
Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) | |
---|---|---|---|---|---|---|---|---|
overall | 2000 | 2018 | 4.963 | 4.536 | -0.4268 | 0.5459 | -0.782 | 0.4524 |
last 20 years | 2000 | 2018 | 4.963 | 4.536 | -0.4268 | 0.5459 | -0.782 | 0.4524 |
Status assessment
Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) | |
---|---|---|---|---|---|---|
BAC | 93.35 | 103.00 | 0.0984 | 0.4281 | 0.230 | 0.4115 |
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 (< 63 micron fraction)
Station : MinchMalin_BannEstuary_se01 (Bann Estuary)
Determinand : Indeno[123-cd]pyrene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020
Station : MinchMalin_BannEstuary_se01 (Bann Estuary)
Determinand : Indeno[123-cd]pyrene
Units : μg kg-1 dry weight normalised to 2.5% organic carbon
Data extraction : 30 April 2020