Health Hazard Evaluation Report HETA 97-0291-2681, U.S. Immigration and Naturalization Service, San Ysidro, California.
On August 15, 1997, the National Institute for Occupational Safety and Health (NIOSH) received a request for health hazard evaluation at the San Ysidro Port of Entry (POE) from the U.S. Immigration and Naturalization Service (INS). The request asked NIOSH to assess employee exposures to vehicle exhaust and noise. Reported health effects among INS inspectors included headaches, dizziness, breathing problems, and difficulty hearing. A site visit was conducted September 17-19, 1997, by NIOSH scientists including two industrial hygienists and a psychoacoustician. Personal air samples were collected for carbon monoxide (CO), hydrocarbons, lead particulate, and noise exposures were measured. Area air samples were collected for carbon monoxide, hydrocarbons, noise, carbon dioxide, temperature, humidity, and qualitative volatile organic compounds. A limited ventilation survey was also conducted as part of the initial site visit.