Nutrient Pollution

An Overview of Harmful Algal Blooms and their Impacts: June 25, 2013

  • Dr. Jennifer Graham, Research Hydrologist, U.S. Geological Survey
  • Dr. Quay Dorth, Coordinator, Ecology and Oceanography of Harmful Algal Bloom Program, National Oceanic and Atmospheric Administration

This presentation is the first in a series about harmful algal blooms (HABs), a worsening environmental problem and public health threat. The presentation provides an introduction to HABs, their causes and their impacts.

You may need Adobe Reader to view files on this page. See EPA’s About PDF page to learn more.