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| EPA Office of Water: Atmospheric Deposition Initiative Studies how air pollution deposits on land and water can have undesirable health and environmental impact, such as contaminated fish, harmful algal blooms and unsafe drinking water. |   |
| European Commission Directorate for Environment Contains publications, news, legislation updates and funding opportunity links. EC directorate responsible for air quality, water quality and nuclear safety. |   | |
| Colorado Division of Water Resources Provides competent and dependable distribution of water in accordance with statutes, decrees and interstate compacts, and ensures public safety through safe dams and properly permitted and constructed water wells. |   | |
| Texas Natural Resource Conservation Commission (TNRCC) Strives to protect the state's human and natural resources through clean air, clean water and the safe management of waste. |   | |
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