Projects

CSEMP assessment of arsenic in sediment at Cosheston Point (Milford Haven)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1-83.35-81.9744.68 -89.35
linear2-91.14-88.4749.57 -99.149.787 10.0018
smooth (df = 2)3-94.56-90.0252.28-104.565.422 10.0199
smooth (df = 3)4-93.46-86.2652.73-105.460.896 10.3439
smooth (df = 4)5-98.41-87.5256.21-112.416.955 10.0084

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920182.67043.15700.48660.09954.8890.0003
last 20 years199920182.67043.15700.48660.09954.8890.0003

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC23.50125.0000.061850.087950.7030.2471

 


Raw data with supporting information

Raw data with supporting information for assessment of  arsenic in sediment at Cosheston Point (Milford Haven)


Raw data with assessment

Raw data with assessment of  arsenic in sediment at Cosheston Point (Milford Haven)


Assessment plot

Assessment plot for  arsenic in sediment at Cosheston Point (Milford Haven)


Metals data

Metals data for assessment of  arsenic in sediment at Cosheston Point (Milford Haven)


Metals assessment

Metals assessment of  arsenic in sediment at Cosheston Point (Milford Haven)


Related pages

  • Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
  • Assessment methodology for metals in sediment
  • Accessment criteria for metals in sediment