To protect the health of Metropolis Towers residents and their neighbors during the chromium cleanup of the site, PPG implemented a dust-control program.

Airborne concentrations of hexavalent chromium during the cleanup were less than the limit permitted by the New Jersey Department of Environmental Protection.

That’s according to the final air-monitoring report on the effectiveness of the dust-suppression plan, which is based on the results from air monitors that operated on the fence line of the site.

Among the exposure-prevention measures were:

• Water misting work areas to suppress dust;
• Restricting open-air soil stockpiles;
• Spraying surfaces with dust-suppression materials;
• Limiting truck traffic to paved areas on-site;
• Pressure-washing trucks in protected areas before exiting sites; and
• Covering open excavations when not being worked.

For more details about dust suppression and air quality at the Metropolis Towers site during its cleanup, contact the Site Administrator.