Projects

CSEMP assessment of arsenic in sediment at Bann Estuary

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean12.84 5.091.58-3.16
linear24.49 9.061.76-3.510.347 10.5559
smooth (df = 2)34.9513.292.52-5.051.536 10.2152
smooth (df = 3)45.7520.153.12-6.251.201 10.2730

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall200620171.96181.8280-0.13384 0.22464-0.5960.5660
last 20 years200620171.96181.8280-0.13384 0.22464-0.5960.5660

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 6.22125.0001.39090.14279.746<0.0001

 


Raw data with supporting information

Raw data with supporting information for assessment of  arsenic in sediment at Bann Estuary


Raw data with assessment

Raw data with assessment of  arsenic in sediment at Bann Estuary


Assessment plot

Assessment plot for  arsenic in sediment at Bann Estuary


Metals data

Metals data for assessment of  arsenic in sediment at Bann Estuary


Metals assessment

Metals assessment of  arsenic in sediment at Bann Estuary


Related pages

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