Office of Environmental Health Hazard Assessment , California

California Air Resources Board/Office of Environmental Health Hazard Assessment, Benzol a] pyrene as a Toxic Air Contaminant (1994) Office of Environmental Health Hazard Assessment/California Environmental Protection Agency, Air Toxics Hot Spot Program Risk Assessment Guideline, Part II Technical Support Document for Describing Available Cancer Potency Factors (1998) Collins et al. (1998). 

From California Air Resources Board (1994) and Office of Environmental Health Hazard Assessment, California Environmental Protection Agency (Cal EPA) (1998). 

The Office of Environmental Health Hazard Assessment, California Environmental Protection Agency, has developed an inhalation reference exposure level of 50ppb (300 pgm ) based on a whole-body inhalation study in rats, 7hday, 5 days week for 6 months. The critical effects are pathological changes in the liver and kidney, with an (average experimental exposure) LOAEL of 5.3 ppm, and a total uncertainty factor of 300. 

OEHHA (2008). Proposition 65 Safe Harbor Levels No significant risk levels for carcinogens and maximum allowable dose levels for chemicals causing reproductive toxicity. Office of Environmental Health Hazard Assessment, California Environmental Protection Agency, Oakland, CA. Accessed at http //www.oehha.ca.gOv/prop65/pdf/Feb2008StatusReport.pdf. 

OEHHA Office of Environmental Health Hazard Assessment, California EPA... 

California - Office of Environmental Health Hazard Assessment - Education - Art Hazards. Online. Available HTTP (accessed 10 April 2003). 

Clearly, a sound evaluation of the total mutagenic/carcinogenic potencies of a complex mixture of POM emissions (e.g., diesel exhaust) should include not only the PEFs of the primary particle- and vapor-phase PAHs and PACs but also those of the mutagens formed in atmospheric reactions of precursor PAHs (see, for example, Arey et al. (1992), Lewtas (1993b), Atkinson and Arey (1994), Nielsen et al. (1996), Arey (1998a), and Section F). For examples of such formal scientific health risk assessments prepared by the State of California Air Resources Board and Office of Environmental Health Hazard Assessment, see Benzo[ ]pyrene as a Toxic Air Contaminant (CARB, 1994) and Identification of Diesel Exhaust as a Toxic Air Contaminant (CARB, 1998). 

California Environmental Protection Agency, Health Effects of Exposure to Environmental Tobacco Smoke, Final Report, September 1997. Available from the Office of Environmental Health Hazard Assessment, 301 Capitol Mall, Second Floor, Sacramento, CA 95814 http //www.calepa. cahwnet. gov/oehha/. 

Chemicals Known to the State to Cause Cancer or Reproductive Toxicity, Office of Environmental Health Hazard Assessment Safe Drinking Water and Toxic Enforcement Act of 1986, State of California Environmental Protection Agency, 2005, p.65. 

International occupational exposure limits (OELs) for NMP generally range between 5 and 50 ppm as an 8h time-weighted average (TWA). The American Conference of Governmental Industrial Hygienists has not established an 8 h TWA OEL for NMP. Several countries have established a short-term excursion limit of 75 ppm. The California Office of Environmental Health Hazard Assessment has identified NMP as a reproductive toxin and established maximum allowable daily limits for exposure of 3200 pg day (via inhalation) and 17 000pgday ... 

The Office of Environmental Health Hazard Assessment of the California Environmental Protection Agency has established a public health goal of 10 ppb for vinylidene chloride in drinking water. This... 

The California Environmental Protection Agency s Office of Environmental Health Hazard Assessment (OEHHA) has applied this approach in several recent dose-response analyses, including that for naphthalene (OEHHA 2004 Hoover et al. 2005). 

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