Vickie Reat

4 Questions 3 Answers 0 Followers

Questions related from Vickie Reat

Using Tier 1 or 2 of the ERICA tool, can it determine an HQ for a terrestrial receptor for exposure to radionuclides in water & soil combined?

I am comparing options to evaluate site data using RESRAD or ERICA. I know RESRAD allows you to enter water (as drinking water) and soil radionuclide concentrations for the Tier 1 calculation. It...

05 June 2020 2,951 0 View

Is a sediment BAF or BSAF more appropriate for back-calculating from a fish tissue concentration to a sediment target concentration for pond dioxins?

Crappie and sunfish were caught in the pond. We are trying to decide if we should add percent lipids to the tissue analyses. We are looking at potential human and wildlife risks associated with...

24 April 2018 9,373 4 View

How to evaluate risks to freshwater benthos from ammonia in bulk sediment?

I am evaluating a risk assessment for a former fertilizer site that is discharging ammonia-impacted groundwater to an adjacent small perennial stream. I can use the U.S. federal ammonia criterion...

25 May 2017 5,942 4 View

Does anyone have suggestions for evaluating invertebrate sensitivity to nitrate/nitrite in bulk sediment in a freshwater location?

From a regulatory standpoint, I am evaluating nitrate/ nitrite concentrations as N based on bulk sediment concentrations for a small freshwater watershed in north Texas. I am evaluating this for...

21 January 2015 1,497 4 View