California government agency provides information about pesticides and pesticide use

EPA provides information about lead, lead hazards, and provides some simple steps to protect your family

the Center for Disease Control provides an ongoing assessment of the U.S. population's exposure to environmental chemicals using biomonitoring

National Institutes of Health's interagency program whose mission is to evaluate agents of public health concern by developing and applying tools of modern toxicology and molecular biology

provided by Defra, the UK government body that seeks to ensure that pesticides in the UK are safe for users, consumers and the environment

registers, evaluates, and enforces pesticides and their use in the United States