Parameters Measured

Sulfur Dioxide

Sulfur Dioxide is measured in parts per billion.

Sulfur dioxide is produced by burning sulfur-containing fuels (such as coal), smelting metallic ores containing sulfur, and removing sulfur from fuels.

The Houston-Galveston-Brazoria, Beaumont-Port Arthur, and El Paso areas have historically shown the highest measured sulfur dioxide levels in the state. There are three sulfur dioxide standards which include a 24-hour average, an annual average, and a three-hour average.