About the Environmental Health Laboratory
The mission of the Environmental Health Lab (EHL) is to provide public health leadership in development of laboratory methods, information, and guidance for the assessment and prevention of indoor and outdoor air pollution, and human exposures to toxic chemicals.
Laboratory Accreditation, Certification, and Ethics
The EHL has earned distinguished recognition and
Accreditation (PDF) by the American Industrial Hygiene Association for more than twenty-five years. EHL is accredited in Industrial Hygiene testing and as a USEPA National Lead Laboratory Accreditation Program (NLLAP) testing laboratory. EHLB holds a
Certificate of Compliance (PDF) under the Centers for Medicare and Medicaid Services, Clinical Laboratory Improvement Amendments for performing clinical tests to diagnose environmental diseases such as lead poisoning and exposures to other toxins in the environment. EHL research and testing activities comply with the
Ethical Principles (PDF) that guide the Division of Environmental and Occupational Disease Control.
The EHL contains the following laboratory units:
This program provides environmental and clinical analytical services, and leadership in the development of laboratory methods. It is a partner in the
California Environmental Contaminant Biomonitoring Program, and it provides technical assistance and advice to the
California Childhood Lead Poisoning Prevention Branch. It also serves as a reference laboratory for public health agencies and as a referee laboratory for determining levels of analytes in reference and proficiency materials for biological testing. The Section maintains a list of laboratories proficient in blood lead analysis (for reimbursement by the California Child Health and Disability Program) and a list of laboratories approved to perform cholinesterase testing for occupational health surveillance.
This program was created in 1983 and was the first state IAQ program in the nation. Assembly Bill 3200 (Tanner, 1982) established the program's statutory mandate to safeguard the public interest through a coordinated and coherent effort to protect and enhance indoor environmental quality in California residences, public buildings, and offices. The program's mission is to conduct studies related to the causes and control of indoor air pollution in California. See
California Health and Safety Code (105400-105430. The program coordinates IAQ activities among key governmental agencies, academic institutions, and industry stakeholders through the
California Interagency Working Group on IAQ. The program provides technical guidance, on behalf of CDPH, on proposed legislation, regulations, and professional standards, as well as information to city and county health agencies and the public.
This program conducts applied research, develops innovative analytical methods, and performs complex laboratory analysis to investigate sources of human exposure to airborne toxicants in the outdoor environment. The OAQ section includes the Forensic Special Studies Unit, which investigates the identity and likely sources of environmental toxics using microscopy, passive air samplers, and portable, continuous monitors; the Environmental Exposure Investigations Unit, which employs ICP-MS, XRF, XRD, LC, GC-MS, Raman micro-spectroscopy, and ambient and source sampling equipment in its work; and the Emergency Preparedness Unit, which provides All Hazards Preparedness Training statewide and operates the Emergency Mobile Laboratory and the All Hazards Risk Assessment Laboratory.