Which of the following are considered conventional pollutants?

Conventional pollutants refer to specific pollutants that are commonly regulated due to their impact on water quality and their widespread occurrence in wastewater discharges. These pollutants are often associated with standard wastewater treatment processes. Biological Oxygen Demand (BOD), Oil and Grease, and Suspended Solids are key indicators of water pollution and are typically measured to assess the quality of treated wastewater.

BOD is a measure of the amount of oxygen that microorganisms will consume while decomposing organic matter in water. The presence of high amounts of BOD indicates a high level of organic pollutants, which can lead to oxygen depletion in water bodies. Oil and Grease are significant pollutants that can form films on the water surface, affecting aquatic life and disrupting the normal functioning of the ecosystem. Suspended Solids encompass a range of materials, including soil, algae, and organic matter, that can clog water treatment systems and lead to habitat degradation in aquatic environments.

While the other groups of pollutants mentioned also have significant environmental impacts, they do not fit the standard classification of conventional pollutants. For example, heavy metals and pesticides are more specific contaminants that require specialized treatment processes, while pathogens and pharmaceuticals represent more complex concerns due to their varying impacts and sources. Therefore, BOD, Oil and Grease,