Projects

CSEMP assessment of arsenic in sediment at Gabbard 2 (Thames)

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean144.6948.29-19.3438.69
linear246.5754.57-19.2938.570.112 10.7374
smooth (df = 2)347.9364.60-18.9737.930.641 10.4232

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200120173.1063.5080.40170.73800.5440.6059
last 20 years200120173.1063.5080.40170.73800.5440.6059

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC33.3725.00-0.2889 0.4442-0.6500.7302

 


Raw data with supporting information

Raw data with supporting information for assessment of  arsenic in sediment at Gabbard 2 (Thames)


Raw data with assessment

Raw data with assessment of  arsenic in sediment at Gabbard 2 (Thames)


Assessment plot

Assessment plot for  arsenic in sediment at Gabbard 2 (Thames)


Metals data

Metals data for assessment of  arsenic in sediment at Gabbard 2 (Thames)


Metals assessment

Metals assessment of  arsenic in sediment at Gabbard 2 (Thames)


Related pages

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