Citizens for a Better Environment (CBE) is an organization that works to reduce exposure to toxic substances in land, water, and air. Founded in 1971, CBE has 30,000 members and operates with a $1.8 million budget. The organization also maintains...

Reaction of a substance or combination of substances to deter or inhibit metabolic processes without completely altering or destroying a species. Toxicity is a function of the nature of the substances, concentration, sensitivity of the target species,...

(1) The ability of a substance to cause injury to living tissue once it reaches a susceptible site in or on the body. (2) The quality of having a toxic effect on a...

A single encounter to toxic concentrations of a hazardous material or multiple encounters over a short period of time (usually 24...

Toxicity is the degree to which something is able to produce illness or damage to an exposed organism. Toxicity can refer to the effect on a whole organism, such as a human or a bacterium or a plant, or to a substructure, such as a cell (cytotoxicity)...

Improved laboratory testing could speed the process of checking chemicals for toxicity and reduce reliance on test animals, according to an analysis released Tuesday.The National Research Council said improvements in methods of testing cells and tissues could lead to fundamental changes in the way toxicity...

A freight train derailed and released a cloud of toxic gas that sent at least 20 people to hospitals, an accident that touched nerves still raw more than two decades after the Chernobyl nuclear plant disaster.Hundreds of people were evacuated and others fled their homes...

The number of people treated for exposure to toxic smoke from a phosphorus fire more than tripled to 69 Wednesday, officials said a day after a train carrying the chemical derailed and caught fire.About half those affected, including 19 children, were hospitalized for exposure to...

The Federal Emergency Management Agency manipulated scientific research in order to play down the danger posed by formaldehyde in trailers issued to hurricane victims, according to an investigation by congressional Democrats released Monday.FEMA "ignored, hid and manipulated government research on the potential impact of long-term...