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  • Keyword = ambient water quality.
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Records 26 to 50 of 128

Using deep learning and active learning methods to streamline literature curation for the ECOTOX Knowledgebase
(PRESENTATION) [Presented : Nov 07, 2019]
The ECOTOXicology Knowledgebase (ECOTOX) is a comprehensive, publicly available knowledgebase providing single chemical environmental toxicity data on aquatic life, terrestrial plants and wildlife. The ECOTOX database (as of March 2019) contains data for 11,695 chemicals and 12,7...
Developing protective aquatic life values for data-limited chemicals considerations for PFAS
(PRESENTATION) [Presented : Nov 07, 2019]
Quality Criteria for the Protection of Aquatic Organisms and Their Uses specifies Minimum Data Requirements (MDRs) for developing national Aquatic Life Ambient Water Quality Criteria (WQC) under Section 304(a) (l) of the Clean Water Act. MDRs define minimum toxicity test data, by...
The ECOTOXicology Knowledgebase: Curated ecologically-relevant toxicity data for risk assessments, criteria derivation, and environmental research.
(PRESENTATION) [Presented : Nov 07, 2019]
The ECOTOXicology Knowledgebase (ECOTOX, http://www.epa.gov/ecotox/), is a comprehensive, curated database that summarizes toxicity data fromsingle-chemical exposure studies to aquatic life, terrestrial plants, and wildlife. For over 30 years, ECOTOX has provided ecologically-rel...
Identifying and curating ecologically-relevant toxicity data with the ECOTOXicology Knowledgebase literature search and review processes.
(PRESENTATION) [Presented : Nov 07, 2019]
The ECOTOXicology Knowledgebase (ECOTOX, http://www.epa.gov/ecotox/) is a nationally and internationally recognized source of curated single-chemical toxicity data for aquatic life, terrestrial plants, and wildlife. This publicly available database provides private industries, fe...
Traditional Toxicity Tests used for Protection of Aquatic Life and Behavioural Endpoints
(PRESENTATION) [Presented : Nov 01, 2019]
Toxicity tests used in regulatory programs to develop ambient water quality criteria (AWQC) or Environmental Quality Standards (EQS) have historically consisted of single organism assays of either 48-96 hr (acute) or 7-28-day (chronic or short term chronic) duration. Resulting da...
Overview of ecological studies on the fate and effects of nanomaterials in the marine environment
(PRESENTATION) [Presented : Sep 24, 2019]
Little information is available on the fate and effects of nanomaterials in the marine environment; however, to develop informed regulations for these materials, this type of information is essential. In 2010, a research program was initiated by the U.S. EPA’s Office of Re...
ECOTOX knowledgebase 5.2 quick reference guide
(PUBLISHED REPORT) [Published : Jul 18, 2019]
The ECOTOXicology knowledgebase (ECOTOX) is a comprehensive, curated database that summarizes toxicology data from single chemical exposure studies to terrestrial and aquatic organisms. The ECOTOX Knowledgebase provides risk assessors and researchers consistent information on tox...
ECOTOXicology knowledgebase system user guide -- version 5.2
(PUBLISHED REPORT) [Published : Jul 17, 2019]
The ECOTOXicology knowledgebase (ECOTOX) is a comprehensive, curated database that summarizes toxicology data from single chemical exposure studies to terrestrial and aquatic organisms. The ECOTOX Knowledgebase provides risk assessors and researchers consistent information on tox...
ECOTOXicology knowledgebase system user guide - version 5.1
(PUBLISHED REPORT) [Published : Dec 01, 2018]
The ECOTOXicology knowledgebase (ECOTOX) is a comprehensive, curated database that summarizes toxicology data from single chemical exposure studies to terrestrial and aquatic organisms. The ECOTOX Knowledgebase provides risk assessors and researchers consistent information on tox...
Acute toxicity of sodium chloride and potassium chloride to a unionid mussel ( Lampsilis siliquoidea) in water exposures
(JOURNAL) [Published : Dec 01, 2018]
Freshwater mussels (order Unionoida) are one of the most imperiled groups of animals in the world. However, freshwater mussels are generally under-represented in toxicity databases used to derive the US Environmental Protection Agency ambient water quality criteria (WQC) and othe...
ECOTOX Knowledgebase 5.1 Reference Guide
(PUBLISHED REPORT) [Published : Dec 15, 2018]
The ECOTOXicology knowledgebase (ECOTOX) is a comprehensive, curated database that summarizes toxicology data from single chemical exposure studies to terrestrial and aquatic organisms. The ECOTOX Knowledgebase provides risk assessors and researchers consistent information on tox...
ECOTOX: ECOTOXicology Knowledgebase System User Guide -- Version 5.1
(PUBLISHED REPORT) [Published : Dec 15, 2018]
The ECOTOXicology knowledgebase (ECOTOX) is a comprehensive, curated database that summarizes toxicology data from single chemical exposure studies to terrestrial and aquatic organisms. The ECOTOX Knowledgebase provides risk assessors and researchers consistent information on tox...
Application of the Ecotoxicology Knowledgebase (ECOTOX) to support environmental research and risk assessment
(PRESENTATION) [Presented : Nov 08, 2018]
The ECOTOX Knowledgebase (http://cfpub.epa.gov/ecotox/) is a nationally and internationally recognized source of curated single-chemical toxicity data for aquatic life, terrestrial plants, and wildlife. This publicly available database currently includes data on more than 11,000 ...
State of the science of metals bioavailability in natural waters
(PRESENTATION) [Presented : Nov 08, 2018]
As part of the SETAC Workshop on Metals Bioavailability, December, 2017 the history of the development of metal bioavailability concepts was reviewed. This presentation gives an overview of metal bioavailability developments for aquatic organisms, development of models and applic...
Research Update: Nutrient Management and Control
(PRESENTATION) [Presented : Jun 07, 2018]
Presentation to be given at the 2018 Nutrients Permitting Workshop, Columbus, OH. Presentation Outline: U.S. EPA, ORD Overview Research Plans – Safe and Sustainable Water Examples: Green Infrastructure Performance Monitoring LCA of Nutrient Control Technologies Nutrient Con...
Microbial Source Tracking: From Basic Science to Management Tool
(PRESENTATION) [Presented : May 22, 2018]
Presentation to be given at the Annual UNC Water Microbiology Meeting. Fecal Pollution is a Worldwide Problem. Fecal microbes are a common biological contaminant in surface waters worldwide. EPA Responsibilities are to protect and restore waters for recreational use, Clean Water ...
Exposure to human-associated chemical markers of fecal contamination and self-reported illness among swimmers at recreational beaches
(JOURNAL) [Published : Jul 03, 2018]
Abstract Anthropogenic chemicals have been proposed as potential markers of human fecal contamination in recreational water. However, to date, there are no published studies describing their relationships with illness risks. Using a cohort of swimmers at seven U.S. beaches, we e...
ECOTOXicology knowledgebase system user guide version 5.0
(PUBLISHED REPORT) [Published : Jul 20, 2018]
The ECOTOXicology knowledgebase (ECOTOX) is a comprehensive, curated database that summarizes toxicology data from single chemical exposure studies to terrestrial and aquatic organisms. The ECOTOX Knowledgebase provides risk assessors and researchers consistent information on tox...
ECOTOXicology knowledgebase reference guide
(PUBLISHED REPORT) [Published : Jul 20, 2018]
The ECOTOXicology knowledgebase (ECOTOX) is a comprehensive, curated database that summarizes toxicology data from single chemical exposure studies to terrestrial and aquatic organisms. The ECOTOX Knowledgebase provides risk assessors and researchers consistent information on tox...
What have we learned after more than 30 years of research into the effects of sunlight, water type, nutrients, temperature and biotic interactions on decay of fecal indicators and pathogens?
(PRESENTATION) [Presented : May 24, 2018]
Many waterborne pathogens originate in the gastrointestinal tract of humans or other animals (the primary habitat), and enter water bodies (secondary habitat) via direct fecal deposition, runoff, or sewage discharges. Fecal indicator bacteria (FIB) such as fecal coliforms, entero...
ECOTOX Knowledgebase: New tools for data visualization and database interoperability (poster)
(PRESENTATION) [Presented : May 17, 2018]
The ECOTOXicology knowledgebase (ECOTOX) is a comprehensive, curated database that summarizes toxicology data from single chemical exposure studies to terrestrial and aquatic organisms. The ECOTOX Knowledgebase provides risk assessors and researchers consistent information on tox...
Acute sensitivity of a broad range of freshwater mussels to chemicals with different modes of toxic action
(JOURNAL) [Published : Mar 01, 2017]
Freshwater mussels, one of the most imperiled groups of animals in the world, are generally underrepresented in toxicity databases used for the development of ambient water quality criteria and other environmental guidance values. Acute 96-h toxicity tests were conducted to evalu...
Developing Sediment Remediation Goals at Superfund Sites Based on Pore Water for the Protection of Benthic Organisms from Direct Toxicity to Non-ionic Organic Contaminants
(PUBLISHED REPORT) [Published : Oct 16, 2017]
A methodology for developing remediation goals for sites with contaminated sediments is provided. The remediation goals are based upon the concentrations of chemicals in the sediment interstitial water measured using the passive sampling technique. The passive sampling technique ...
Prior knowledge-based approach for associating contaminants with biological effects: A case study in the St. Croix river basin, MN, WI, USA.
(JOURNAL) [Published : Feb 28, 2017]
Evaluating the potential human health and/or ecological risks associated with exposures to complex chemical mixtures in the ambient environment is one of the central challenges of chemical safety assessment and environmental protection. There is a need for approaches that can he...
ECOTOX Knowledgebase: New tools for data visualization and database interoperability -Poster
(PRESENTATION) [Presented : Mar 15, 2018]
The ECOTOXicology knowledgebase (ECOTOX) is a comprehensive, curated database that summarizes toxicology data from single chemical exposure studies to terrestrial and aquatic organisms. The ECOTOX Knowledgebase provides risk assessors and researchers consistent information on tox...