Glossary I

The Environmental Glossary. Letter I +++ Popular Articles: 'International Labour Organization (ILO)', 'Information', 'Impact'

The term "impoundment" may refer to any one of the following:

Deutsch: Verunreinigung / Español: Impureza / Português: Impureza / Français: Impureté / Italiano: Impurità

In the environmental context, "impurity" refers to any substance that is undesired or harmful within a particular environment or ecological system. These impurities can include pollutants, contaminants, or any foreign elements that disrupt the natural balance of the ecosystem. They can be found in water, air, soil, or living organisms and often result from human activities such as industrial processes, agricultural operations, and urban development.

The In a Million Cancer Risk is a risk level of 1 in a million implies a likelihood that up to one person, out of one million equally exposed people would contract cancer if exposed continuously (24 hours per day) to the specific Concentration over 70 years (an assumed lifetime).

incinerators are Disposal systems that burn solid waste or other materials and reduce volume of waste. Air Pollution and toxic Ash are problems associated with incineration.

An inclusion probability is the Probability of including a specific sampling unit within a sample.

An Increasing block rate is Pricing that reduces water use by structuring water rates to increase per-unit charges as the amount used increases (Martin and Kulakowski, 1991).

An Independence is the lack of a causal relationship between things, regardless of their statistical correlation; freedom from bias and external influences that could affect objectivity.

An Independent Assessment is an evaluation performed by a qualified individual, group, or organization that is not part of the organization directly performing and accountable for the work being assessed.

An index is Mathematical aggregation of Indicators or metrics.

An Index of Biological Integrity is an integrative expression of the biological condition that is composed of multiple metrics.

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