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  1. Impacts of Plastic Pollution | US EPA

    May 15, 2025 · Environmental Impacts Plastic pollution poses a threat to the marine environment. It puts marine species at higher risk of ingesting plastic, suffocating, or becoming entangled in plastic …

  2. Environmental Topics | US EPA

    Dec 8, 2025 · EPA's resources on environmental issues include research, basics, what you can do, and an index covering more specific terms.

  3. Nutrient Pollution | US EPA

    6 days ago · Nutrient pollution is one of America's most widespread, costly and challenging environmental problems, and is caused by excess nitrogen and phosphorus in the air and water.

  4. Health and Environmental Effects of Particulate Matter (PM)

    May 23, 2025 · Health and Environmental Effects of Particulate Matter (PM) Health Effects The size of particles is directly linked to their potential for causing health problems. Small particles less than 10 …

  5. Sources and Solutions: Fossil Fuels - US EPA

    Nov 12, 2025 · Fossil fuel use in power generation, transportation and energy emits nitrogen pollution to the air that gets in the water through air deposition.

  6. Basic Information on Nutrient Pollution | US EPA

    Apr 22, 2025 · It’s important to understand nutrient pollution because it has affected many of our water bodies and other aspects of environmental health, human health and the economy. What is Nutrient …

  7. Healthy School Environments | US EPA

    Nov 20, 2025 · The health of a school's environment can affect the attendance, concentration, performance and health of both students and educators. This website presents information on key …

  8. Cement Manufacturing Enforcement Initiative | US EPA

    Jul 22, 2025 · Description of the the Cement Manufacturing Initiative, begun in 2008 and listing of enforcement actions, civil case settlements, achieved under this initiative.

  9. Economic Incentives | US EPA

    Nov 4, 2025 · The impact of economic incentives on environmental protection.

  10. Basic Information about NO2 | US EPA

    Jul 10, 2025 · Nitrogen Dioxide (NO2) and other nitrogen oxides (NOx) damage the human respiratory system and contribute to acid rain. These air pollutants are regulated as part of EPA's National …