Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Guidance
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Breadcrumb

  1. Home
  2. Science Matters

Meet EPA Oceanographer Darryl J. Keith Ph.D.

EPA researcher Darryl Keith works with other EPA researchers to provide satellite data products to map the distribution and abundance of seagrass in southern New England estuaries as well as provide water quality information in support of aquaculture farming in two Rhode Island estuaries. Darryl also provides technical assistance to the Rhode Island Department of Environmental Management and Rhode Island Department of Health to monitor the abundance and location of cyanobacteria in lakes and ponds in Rhode Island as well as western Lake Superior through satellite remote sensing. 

Tell us about your background.

I received my bachelor’s degree in geology from the University of North Carolina-Chapel Hill. Next, I went to the University of Rhode Island for a masters in geological oceanography and marine policy, followed by a Ph.D. in biological oceanography.

When did you first know you wanted to be a scientist? 

Senior year of high school but I always had a very strong interest in science and the oceans.

What do you like most about your research? 

Being able to collect data on boats to support research. I also enjoy presenting results to colleagues and interacting with students.

How does your science matter?

Generally, my research uses the power of satellite technology to detect changes in water quality and identify when it’s safe for the public to use waterbodies for recreation and daily use and consumption. Observing changes in water quality across multiple locations and during various times can be difficult. Changes, such as events like toxic harmful algal blooms, may go undetected and result in environmental and human health issues. 

Using this technology for environmental monitoring reduces societal costs such as illness, missed days of work, or decreased recreational opportunities. In addition, my science provides information for more places and more times than has been possible in the past and will reduce the financial burden of state agencies to conduct their missions.

If you weren’t a scientist, what would you be doing?

I would be a high school science teacher

What advice would you give a student interested in a career in science? 

Pursue internships and summer employment opportunities in your area of interest. Develop contacts and network in your area of interest as well.

What’s your role in space research at EPA?

I primarily apply satellite data to monitor cyanobacteria and general water quality conditions of freshwater bodies in terrestrial environments. I also monitor phytoplankton, nutrient dynamics, and general coastal water quality using data from the International Space Station and other earth-orbiting satellites.

What do you think the coolest scientific discovery was and why? 

Launching the James Webb telescope and seeing the beautiful, detailed images from the cosmos. These and future images will expand our view and understanding of the universe.

If you could have dinner with any scientist, past or present, who would you choose and what would you talk about? 

Robert Ballard. The conversation would not only revolve around his discoveries of ancient and recent shipwrecks and their places in history using remotely operated vehicles (ROVs) but the significance of the technologies that he pioneered to make these discoveries possible.

What do you think is our biggest scientific challenge in the next 20/50/100 years? 

Mitigating the effects of global warming through innovation and social change.


Editor's Note: The opinions expressed herein are those of the researcher alone. EPA does not endorse the opinions or positions expressed.  

Science Matters

  • Researchers at Work Profiles
  • All Stories
    • 2024 Stories
    • 2023 Stories
    • 2022 Stories
    • 2021 Stories
    • 2020 Stories
    • 2019 Stories
    • 2018 Stories
    • 2017 Stories
    • 2016 Stories
Contact Us About Science Matters
Contact Us About Science Matters to ask a question, provide feedback, or report a problem.
Last updated on April 17, 2025
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions
  • Site Feedback

Follow.