Glossary H
The hardness is the water-quality indication of the Concentration of Alkaline salts in water, mainly calcium and magnesium. If the water you use is "hard" then
Deutsch: Ernte / Español: Cosecha / Français: Rêcolte / Italiano: Raccolta
Harvest in the environmental context refers to the process of gathering mature crops from fields or the collection of other natural resources, such as timber, fish, or wildlife, for various purposes. It is a critical aspect of agriculture, forestry, and fisheries management and plays a significant role in ensuring the availability of food, raw materials, and other essential resources. The term encompasses activities like crop harvesting, timber harvesting, and wildlife harvesting, each serving distinct purposes within the environmental domain.
Deutsch: Gefahr / Español: Peligro / Português: Perigo / Français: Danger / Italiano: Pericolo /
In the environmental context, a 'hazard' refers to any agent, substance, condition, or event that has the potential to cause harm, damage, or adverse effects to the environment, living organisms, property, or human health. Hazards can arise from both natural and human-induced sources and can manifest in various forms. Understanding hazards is essential for risk assessment, management, and the development of strategies to mitigate their impacts.
A Hazard Index (HI): is the sum of hazard quotients for substances that affect the same target organ or organ system.
A Hazard Ranking System (HRS) is the method EPA uses to assess and score the hazards posed by a site that takes into account the nature and extent of Contamination and the potential for the hazardous substances to migrate from the site through air, soil, surface water, or groundwater; HRS scores are used to determine whether a site should be placed on the National Priorities List (NPL)
The Hazardous Air Pollutant Exposure Model, Version 4 (HAPEM4) is a computer model that has been designed to estimate inhalation exposure for specified population groups and air toxics.