Monday, March 30, 2009

What is 1 ug/L of mercury discharge limit equivalent to?

A water concentration of 1 ug/L (or parts per billion) of mercury is roughly equivalent to the mercury contained in a small thermometer diluted in 0.5 million gallons of water. This small amount of mercury left in a sink trap could contaminate the wastewater discharged from a large facility for many months.

Caltha LLP provides expert consulting services to public and private sector clients nationwide to address water quality standards, wastewater permitting and assessing potential impacts of chemicals in the aquatic environment.

Caltha LLP Aquatic Toxicology / WQ Standards Services Website