The Texas Commission on Environmental Quality (TCEQ) recently issued a public comment period and public meeting regarding the Galena Park Air Pollutant Watch List (APWL) area for benzene. The purpose of the APWL is to reduce air toxic emissions in areas of Texas where ambient air monitoring indicates a potential health concern.
Galena Park is listed on the APWL due to elevated annual average concentrations of benzene. Benzene is a known human carcinogen – both the National Toxicology Program (NTP) and the International Agency for Research on Cancer (IARC) have found sufficient evidence that high benzene exposure causes acute myeloid leukemia (AML).
Why the change?
Between 1998 and 2007, annual average benzene concentrations in Galena Park exceeded the long-term, health-based Air Monitoring Comparison Values (AMCV) of 1.4 parts per billion by volume (ppbv). In 2009, annual average benzene concentration at the Pasadena North monitoring site equaled the long-term AMCV of 1.4 ppbv.
TCEQ recently conducted a reevaluation of Galena Park and identified significant man-made benzene sources located outside of the current APWL boundary that are likely contributing to annual average benzene concentrations at the Galena Park and Pasadena North monitoring sites. As such, TCEQ is proposing to expand the Galena Park APWL boundary to include these sources of benzene. Read More