Q: 07 of 30Which of the following is NOT a common water pollutant regulated under the Clean Water Act?Options :Carbon dioxide emissionsFecal coliform bacteriaOil and greaseHeavy metals

To determine which of the options is NOT a common water pollutant regulated under the Clean Water Act, we need to analyze each option individually.

1. Carbon dioxide emissions: Carbon dioxide is a greenhouse gas that is primarily associated with air pollution and climate change. While it can indirectly affect water quality through its impact on the environment, it is not typically regulated as a water pollutant under the Clean Water Act. Therefore, carbon dioxide emissions can be considered a common water pollutant regulated under the Clean Water Act.

2. Fecal coliform bacteria: Fecal coliform bacteria are commonly found in the intestines of warm-blooded animals, including humans. Their presence in water bodies indicates contamination by fecal matter and can pose a risk to human health. Fecal coliform bacteria are indeed regulated as water pollutants under the Clean Water Act.

3. Oil and grease: Oil and grease can enter water bodies through various sources, such as spills, leaks, or improper disposal. They can have detrimental effects on aquatic ecosystems and water quality. Therefore, oil and grease are commonly regulated as water pollutants under the Clean Water Act.

4. Heavy metals: Heavy metals, such as lead, mercury, and cadmium, can be toxic to both humans and aquatic organisms. They can enter water bodies through industrial discharges, mining activities, and other sources. Heavy metals are indeed regulated as water pollutants under the Clean Water Act.

Based on the analysis above, the option that is NOT a common water pollutant regulated under the Clean Water Act is carbon dioxide emissions.