How much can a person be fined per day per violation for knowingly releasing a regulated substance that violates the Clean Air Act?

The fine for knowingly releasing a regulated substance in violation of the Clean Air Act can reach $44,539 per day, per violation. This amount reflects both the significant impact that such violations can have on public health and the environment, as well as the need for strong deterrents against non-compliance. The figure is adjusted periodically to account for inflation and the increasing importance of strict adherence to environmental regulations.

On the other hand, the other options represent outdated or lesser amounts that fail to reflect the current legal standards. Understanding the severity of this fine is crucial, as it underscores the responsibility of individuals and organizations to comply with environmental regulations to prevent harmful emissions and protect air quality.