New York Low Pressure Boiler COF Practice 2026 – All-in-One Guide to Exam Success!

The primary concern for boiler operations prior to the Clean Air Act was sulfur dioxide. This compound is a byproduct of burning fossil fuels containing sulfur, such as coal and oil. The emissions of sulfur dioxide were particularly problematic as they contributed significantly to environmental issues like acid rain, which can harm ecosystems, lakes, and buildings.

Before regulations like the Clean Air Act were put in place, there were few measures to control these emissions, leading to widespread air quality problems. The Clean Air Act aimed to reduce pollutants, including sulfur dioxide, to improve air quality and protect public health. Understanding the historical context of sulfur dioxide's impact on the environment highlights why this was such a major focus before the implementation of stricter environmental regulation.