Based on the provided information, under the Clean Air Act, the plant not using equipment to reduce its emission is most likely a violation. (Option A)
The Clean Air Act is the primary federal air quality law in the United States, which focuses to reduce and control air pollution nationwide. The act was initially enacted in 1963 and amended several times. It is one of the United States' first and most influential modern environmental laws. The act provides the Environmental Protection Agency (EPA) with the necessary guidelines and tools to protect individuals from a number of harmful pollutants that can cause health issues, especially in children. It also EPA to establish emissions standards based on technology performance for major sources of hazardous air pollutants, also called air toxics. A plant that does not attempt to reduce its emission is most likely in violation of the standards.
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