The State Implementation Plan (SIP) is developed to show how a state will meet the National Ambient Air Quality Standards (NAAQS) for six common pollutants, called "criteria pollutants," as set forth by the Clean Air Act.

Below are some of the memorandums, determinations, and summaries that the Asbestos section has distributed concerning Regulation 61-86.1, Standards of Performance for Asbestos Projects (pdf).

Air Quality Modeling Guidance and Forms

• Modeling Guidelines for Air Quality Permits (10/15/2018; revised 1/9/2025)
• Emission Point Information Form (D-2573) - Use this form to submit emission point locations and parameters. (3/10/2022)
  • Emission Point Data Instructions (9/25/2023)

Ozone is a highly reactive, colorless gas pollutant that is not typically emitted directly into the air by any one source.  Instead, ozone is considered a secondary pollutant, which means that it is formed through complex chemical reactions of molecules in the air. Specifically, ground-level ozone is formed when nitrogen oxides (NOx) and volatile organic compounds (VOCs) chemically react in the presence of sunlight.

Ambient Air Monitoring Network

SCDES operates air monitoring stations throughout South Carolina to measure the concentrations of pollutants in outdoor (ambient) air that are considered harmful to public health and the environment. The EPA sets national ambient air standards for each type of pollutant and sets minimum requirements for both the number and distribution of monitors among metropolitan statistical areas. The EPA also requires states to meet quality assurance and other standards.

SCDES Spare the Air