liter; a unit of volume equaling 1000 ml

Small containers (such as ampoules) of hazardous waste placed in overpack
drums (lab packs) with non-biodegradable sorbent.

Lowest Achievable Emission Rate, (CAA).  Applied to major new or
modified sources in non-attainment areas.  More strict than BACT or RACT.

The application of sewage sludge to land to condition the soil or fertilize
crops or other vegetation.

Under RCRA prohibits the land disposal of certain wastes unless they meet
applicable treatment standards, (40 CFR 268).

Lead-Based Paint; (TSCA 40 CFR 745)

Lethal Concentration:  The median lethal concentration at which 50% of
test species died.  Concentration lethal to 50% of tested recipients.

Lead Contamination Control Act

Lethal Concentration Low:  The lowest concentration of a substance in
air, other than LC50, which has been reported to have caused death in humans or
animals..  The reported concentrations may be entered for periods of
exposure which are less than 24 hours (acute) or greater than 24 hours
(subacute and chronic).

Lethal Dose - Amount to cause death in 50% of exposed species

Land Disposal Facilities

Lethal Dose Low - Lowest dose to cause death in humans or animals

Land Disposal Prohibitions

Land Disposal Restrictions
(40 CFR Part 268)

Lower Explosive Limit.  The minimum concentration of a combustible gas
or vapor in air which will ignite if an ignition source is present, also called
LFL.

Local Emergency Planning Committee:  Established under EPCRA as the
local focal point for reporting chemical storage and emergency response planning
activities (SARA Title III).

Lead Exposure Reduction Act

Lower Flammable Limit (see LEL)

Laboratory Information Management Systems, specialized software for lab
operations.

Light Non-Aqueous Phase Liquid