e-journal

Application of Ecological Risk Assessment in Managing Residual Fly Ash in TVA's Watts Bar Reservoir, Tennessee

---

The Tennessee Valley Authority conducted a Baseline Ecological Risk Assessment (BERA) for the Kingston Fossil Plant ash release site to evaluate potential effects of residual coal ash on biota in Watts Bar Reservoir, Tennessee. The BERA was in response to a release of 4.1 millionm3 of coal ash on December 22, 2008. It used multiple lines of evidence to assess risks for 17 different ecological receptors to approximately 400 000m3 of residual ash in the Emory and Clinch rivers. Here, we provide a brief overview of the BERA results and then focus on how the results were used to help shape risk management decisions. Those decisions included selecting monitored natural recovery for remediation of the residual ash in the Emory and Clinch rivers and designing a long-term monitoring plan that includes adaptive management principles for timely adjustment to changing conditions.This study demonstrates the importance of ite-specific ecological data (e.g., tissue concentrations for food items, reproductive data, and populatio n data) in complex ecological risk assessments.It also illustrates the value of the US Environmental Protection Agency's (USEPA) data quality objectives process in building consensus and identifying multiple uses of results. The relatively limited adverse effects of this likely worst-case scenario for ash-related exposures in a lotic environment provide important context for the USEPA's new coal combustion residue disposal rules. Integr Environ Assess Manag 2015;11:80–87

---

Ketersediaan

Tidak ada salinan data

Informasi Detail

Judul Seri

Integrated Environmental Assessment and Management

No. Panggil

-

Penerbit

: SETAC., 2014

Deskripsi Fisik

Integrated Environmental Assessment and Management 2014, pp. 80 – 87 80

Bahasa

English

ISBN/ISSN

DOI: 10.1002/ieam.15

Klasifikasi

-

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

2014, Volume 11, Number 1

Subjek

Integrated Environmental Assessment and Management

Info Detail Spesifik

-

Pernyataan Tanggungjawab

deliza

Versi lain/terkait

Lampiran Berkas

Komentar

---

Anda harus masuk sebelum memberikan komentar