Science Inventory

Next >>

Whole Effluent Toxicity (WET) test methods for measuring the toxicity of effluents and receiving waters are found in 40 CFR Part 136. Short-term chronic freshwater toxicity test methods include the use of three species – a cladoceran (Ceriodaphnia. dubia), the fathead minno...

The ECOTOXicology Knowledgebase (ECOTOX) is a comprehensive, publicly available resource providing single chemical environmental toxicity data on aquatic life, terrestrial plants, and wildlife. The database is updated quarterly, and to identify relevant references and extract per...

The ECOTOXicology Knowledgebase (ECOTOX) is a nationally and internationally recognized source of curated, single-chemical toxicity data for aquatic and terrestrial organisms. ECOTOX has been locating and curating ecotoxicity data using systematic and transparent literature revie...

FY22 Quick Guide: Periodical updates are required for the ECOTOX end user documentation. This ECOTOX Quick User Guide provides a simple, two-page reference document on the methods and features available for querying information in the ECOTOX Knowledgebase. This brief summary of t...

FY22 User Guide: Periodical updates are required for the ECOTOX end user documentation. This User Guide provides documentation on utilizing and searching for information in the ECOTOX Knowledgebase to help users easily retrieve information from the electronic database through the...

What are Harmful Algal Blooms (HABs)? Most species of algae are not harmful, but sometimes certain types bloom in excessive amounts and can cause harm to health and economies. HABs, include both algae and cyanobacteria that can produce toxins and other irritants in freshwater.&nb...

Because Clostridium perfringens spores are both specific to sewage contamination and environmentally stable, they are considered as possible conservative indicators of human fecal contamination and possible surrogates for environmentally stable pathogens. This review discusses th...

EPA currently has aquatic toxicity testing methods for effluent and ambient testing that were promulgated in 2002. Currently, EPA’s Whole Effluent Toxicity (WET) test methods include the freshwater toxicity test methods for acute lethality include cladocerans (Daphnia magna...

To investigate how the sulfate anion (SO42-) may be related to the adverse effects associated with elevated ionic concentrations in freshwaters, we measured influx and efflux of SO42- in four freshwater groups represented by a fish (Pimephales promelas) and three invertebrates: a...

The ECOTOX Knowledgebase is a comprehensive, publicly available application providing chemical environmental toxicity data on aquatic life, terrestrial plants and wildlife. ECOTOX data has been compiled over more than 30 years and currently includes over 51,000 references coverin...

The ECOTOXicology Knowledgebase (ECOTOX) is a comprehensive, publicly available resource providing single chemical environmental toxicity data on aquatic life, terrestrial plants and wildlife. The database is updated quarterly, and to identify relevant references and extract pert...

Ecological risk assessment relies on multiple sources of chemical toxicity data, including results from standard in vivo toxicity tests, in vitro chemical screening assays, and other new approach methodologies (e.g., QSARs). This webinar provides an introduction to example data s...

The ECOTOX Knowledgebase is a comprehensive, publicly available application providing chemical environmental toxicity data on aquatic life, terrestrial plants and wildlife compiled from over 51,000 references covering over 12,000 chemicals and over 13,000 species. This webinar pr...

The ECOTOXicology Knowledgebase (ECOTOX) is a publicly available web-based database providing curated single-chemical toxicity data for aquatic life, terrestrial plants, and wildlife. For over 30 years, ECOTOX has curated ecologically-relevant toxicity data to meet the systematic...

To understand how the anion, sulfate (SO42-), may contribute to the adverse effects associated with elevated ionic strength or salinity in freshwaters, we measured the uptake and efflux of SO42- in representatives of 4 freshwater groups: a fish, Pimephales promelas, and 3 in...

Metals are widely studied environmental contaminants for several reasons, including their ubiquity, potential toxicity to aquatic life, and tendency for their aquatic toxicity to vary widely with the chemistry of the surface water in which they occur. These interactions between ...

The ECOTOX Knowledgebase (ECOTOX) is a comprehensive, publicly available application providing chemical environmental toxicity data on aquatic life, terrestrial plants and wildlife. Data are curated from the scientific literature after exhaustive search protocols and contains mo...

The ECOTOXicology Knowledgebase (ECOTOX) is a comprehensive, publicly available resource providing single chemical environmental toxicity data on aquatic life, terrestrial plants and wildlife. The database is updated quarterly, and to identify relevant references and extract pert...

Per‐ and polyfluoroalkyl substances (PFAS) are a group of man‐made chemicals of concern across the globe, and some of the PFAS chemicals are known to be bioaccumulative in aquatic species. In developing ambient water quality criteria for PFASs, bioaccumulation data a...

The U.S. Environmental Protection Agency (EPA) publishes and periodically updates ambient water quality criteria (AWQC) for the protection of human health and aquatic life through its authority under Section 304(a) of the Clean Water Act. The number of toxic chemicals generated ...

The ECOTOX Knowledgebase is a comprehensive, publicly available application providing chemical environmental toxicity data on aquatic life, terrestrial plants and wildlife compiled from over 49,000 references covering more than 11,700 chemicals and 12,900 species. ECOTOX data are...

To better understand how the sulfate (SO42−) anion may contribute to the adverse effects associated with elevated ionic strength or salinity in freshwaters, we measured the uptake and efflux of SO42− in four freshwater species: the fathead minnow (Pimephales promelas,...

A field-based model was developed to identify the annual maximum specific conductivity (SC) that may be tolerated by salt-intolerant genera and that may be used as an acute benchmark or ambient water quality criterion for SC. This approach used only water chemistry. The results f...

An important goal of the Clean Water Act is to protect and restore waters for recreational use. In response, EPA routinely publishes and/or updates recommended Ambient Water Quality Criteria (AWQC). Research conducted by EPA Office of Research and development supports this effort...

The ECOTOX Knowledgebase (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 currently includes data on more than 11,000 chemicals...