Time in years to exceed the 10th or 90th quantile of the post-2015 data for each constituent and study area.

Table columns include REGION—four study areas, DELTA—fractional year-on-year change, ANALYTE—analyte analysed, MEAN_TIME_Q10—time in years for projected linear trend to go below the 10th percentile of the post-2015 data, MEAN_TIME_Q90—time in years for projected linear trend to go above the 90th percentile of the post-2015 data. (XLS)