Glossary H

The Environmental Glossary. Letter H +++ Popular Articles: 'Human', 'Hazard', 'Health'

A Hazardous and Solid Waste Amendments (HSWA) is amendments to RCRA,

A Hazardous Chemical is see Hazardous Substance

A Hazardous Material is see Hazardous Substance

A Hazardous Substance is a broad term that includes all substances that can be harmful to people or the environment; toxic substances, hazardous materials and other similar terms are

Deutsch: Gefährlicher Abfall / Español: Residuos Peligrosos / Português: Resíduos Perigosos / Français: Déchets Dangereux / Italiano: Rifiuti Pericolosi /

A Hazardous Waste is by-product s or waste materials of manufacturing and other processes that have some dangerous property; generally categorized as corrosive, ignitable, toxic, or reactive, or in some way harmful to people or the environment

A haze is an atmospheric condition marked by a slight reduction in atmospheric visibility, resulting from the formation of photochemical smog, radiation of Heat from the ground surface on hot days, or the development of a thin mist.

Deutsch: Kopfabbruch / Español: Cabeceo erosivo / Português: Corte de cabeceira / Français: Érosion de tête / Italiano: Erosione di testa

A headcut in the environmental context refers to the abrupt change in elevation or a vertical step in a streambed or soil surface, often caused by erosion processes. It is commonly seen in gullies, stream channels, or riverbanks and represents an active zone of erosion where water flow causes the soil or sediment to break and retreat upstream.

A Heading is the stage in which the head pushes its way through the flag leaf collar.

Headlocks are Self-locking stanchions along a feed Alley in which cows voluntarily enter the head slot when going to eat. All cows may be held until Herd health work is completed, and

Headwaters are Small creeks at the uppermost end of a stream system, often found in the mountains, that contribute to larger creeks and rivers.