Landfill

1. Sanitary landfills are disposal sites for non-hazardous solid wastes spread in layers, compacted to the smallest practical volume, and covered by material applied at the end of each operating day.

2. Secure chemical landfills are disposal sites for hazardous waste, selected and designed to minimize the chance of release of hazardous substances into the environment.

Lethal Dose (LD50)

Also referred to as LD50, the dose of a toxicant that will kill 50 percent of test organisms within a designated period of time; the lower the LD50, the more toxic the compound.

Linear Alkyl Benzene Sulfonates

(See alkyl benzene sulfonates)

Linear Alkyl Sulfonates

(See alkyl benzene sulfonates)