About Us


The Adult Blood Lead Epidemiology and Surveillance Program (ABLES) maintains a surveillance system of blood lead test results on individuals 15 years of age and older. Laboratories and physicians are required by the Texas Reportable Occupational Conditions Act to report all blood lead levels. Follow-up is conducted on blood lead levels that are 10 micrograms of lead per deciliter (10 mcg/dL) of blood or higher.

Historical reporting rules

In 1986, the Texas Legislature enacted the Health and Safety Code Chapter 84 “Reporting of Occupational Conditions” and required the reporting of adult blood lead levels DSHS. Initially, the reporting level was 40 mcg/dL. In 1999, the Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health (NIOSH) defined an elevated blood lead level in an adult as 25 mcg/dL. In accordance with NIOSH’s case definition, the level at which blood lead levels were to be reported changed from 40 mcg/dL to 25 mcg /dL. In 2002, an amendment to the Texas Administrative Code (Title 25, Part 1, Chapter 99, Rule §99.1) required the reporting of all blood lead levels.

Recent research has documented harmful health effects of blood lead levels well below 25 mcg /dL. Because of this, NIOSH recommended lowering the elevated blood lead level in an adult from 25 mcg /dL to 10 mcg /dL.


Last updated February 11, 2016