An official website of the United States government.

We've made some changes to If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Nutrients Research

Nutrients Research Funding Opportunity

To promote scientific progress towards preventing and controlling harmful algal blooms, EPA is seeking applications proposing research to support "Approaches to Reduce Nutrient Loadings for HABs Management." Visit EPA's Water Research Grants website for information on how to apply for the grant awards.

Excess nutrients (nitrogen and phosphorus) are among the most prevalent cause of water quality impairment in the United States. EPA, state and local governments, and numerous stakeholders have made progress to reduce nutrients loadings that contribute to harmful algal blooms (HABs), hypoxia, fish kills, terrestrial biodiversity changes and degradation of drinking source waters that require costly water treatment. These pollutants continue to be released and discharged at concentrations that cause adverse impacts to human health and aquatic and terrestrial ecosystems.

To help ensure the sustainability of our water, land, and air, and to protect our health while also providing the material, food, and energy required by society, EPA's researchers are exploring solutions to reduce and control nutrient pollution and HABs, maximize efficient nutrient use, promote nutrient removal processes, and protect people and natural resources.

Cyanobacterial Harmful Algal Bloom in Lake ErieEPA's research provides innovative solutions to address the problem of nutrient pollution. Some examples of research being conducted at EPA include sources of nutrient pollution, HABs and associated algal toxins, fate and transport of nutrients in the environment, chemical changes that happen as nutrients move in the environment, effects of nutrient pollution on our environment and health, and benefits and costs associated with different nutrient management choices.

Much of this research supports the development of regulatory limits on nutrient pollution in water resources. At the same time, researchers work to understand the social and economic costs and benefits associated with potential solutions to excess nutrient problems so that optimal solutions for managing water quality over the long term can be achieved.

On this page:

Research Topics

Top of Page

Research Publications

Top of Page

Available Tools

See EPA's Methods, Models, Tools, and Databases for Water Research for a full listing of available water-related tools.

Top of Page

Featured Science Matters Articles

Top of Page

Related Resources

Top of Page