Which of the following is part of the pollution prevention hierarchy after source reduction?

The choice of treatment as part of the pollution prevention hierarchy after source reduction is significant because it aims to manage waste that cannot be reduced at the source. Source reduction refers to minimizing waste generation and the use of hazardous substances before they are created. Once those measures are in place and waste is still produced, treatment becomes the next step to manage that waste safely.

Treatment methods help to change the physical, chemical, or biological character of pollutants, making them less harmful before they are released into the environment or disposed of. This can involve processes such as neutralization, filtration, or chemical treatment to reduce toxicity and volume, thereby mitigating the impact on the environment.

In contrast, other options like disposal, incineration, and landfill are methods that deal with waste after it has been generated. They do not prevent pollution but rather manage it post-generation. By employing treatment techniques after source reduction, the goal is to further minimize the environmental impact and comply with regulations aimed at protecting public health and the environment. This reflects a proactive approach to waste management and pollution control that is crucial in environmental compliance efforts.