The thickness or opaqueness of water caused by the suspension of matter. The turbidity of rivers and lakes increases after a rainfall.

1782, from Medieval Latin turbiditas, from Latin turbidus (see turbid). Turbidity current is from 1939.

Sediment in suspension; hazy, murky.

cloudiness or lack of transparency.

The degree of opacity of a fluid.

The opaqueness or reduced clarity of a fluid due to the presence of suspended matter.

the measure of suspended sediment maintained in water by turbulent flow.

Interference with the passage of light rays through a liquid, caused by the presence of suspended matter.

the amount of solid particles that are suspended in water and that cause light rays shining through the water to scatter. Thus, turbidity makes the water cloudy or even opaque in extreme cases. Turbidity is measured in nephelometric turbidity units (NTU).

chemistry - particulate matter in water that scatters light causing a cloudy appearance

A measure of non-transparency of water due to the presence of suspended matter.

(n) muddiness created by stirring up sediment or having foreign particles suspended

The measure of the clarity of water as a result of debris and silt

The weight of particulate matter per unit volume of seawater

The amount of solids (such as sediment or plankton) suspended in a sample of water. This can be affected by wind speed and wind fetch, small-scale circulation features, and many other factors.

the state of having sediment or foreign particles suspended or stirred up in water

The degree to which the water loses its transparency due to the presence of suspended particulates

A measurement of the total suspended solids.

A measure of the cloudiness of water due to suspended particles, that are usually invisible to the naked eye. The more turbid the water, the harder it is to see through.

The measurement of the cloudiness of water due to the entrainment of suspended solids or other particles.

An optical property of water related to light attenuation. Turbidity increases as the amount of suspended sediments in the water column increase (IADC/CEDA, 1998).

(1) A condition of a liquid due to fine visible material in suspension, which may not be of sufficient size to be seen as individual particles by the naked eye but which prevents the passage of light [..]

(1) a condition in water or wastewater caused by the presence of suspended matter, resulting in the scattering and absorption of light rays. (2) a measure of fine suspended matter in liquids. (3) an a [..]

The cloudy appearance of water caused by the presence of suspended and colloidal matter. In the waterworks field, a turbidity measurement is used to indicate the clarity of water. Technically, turbidi [..]

The amount of particulate matter suspended in water.

 The cloudy condition of the water due to the presence of extremely fine particles in suspension that cannot be trapped by the filter because they are too small. Adding a clarifier, such as an organic [..]

1. Haziness in air caused by the presence of particles and pollutants. 2. A cloudy condition in water due to suspended silt or organic matter.

1. Haziness in air caused by the presence of particles and pollutants. 2. A cloudy condition in water due to suspended silt or organic matter.

A cloudy condition in water due to suspended silt or organic matter. The degree of turbidity is measured with a turbidometer.

is the cloudiness of a liquid caused by suspended matter.

Hazy air due to the presence of particles and pollutants; a similar cloudy condition in water due to suspended silt or organic matter.

The "cloudiness" of water; the reduction in transparency in water due to the presence of suspended particles (sediments).

Turdidity is a measure of the cloudiness or opaqueness of the water and is measured in nephelometric turbidity units (ntu). The turbidity is influenced by the amount and nature of suspended organic and inorganic material in water. Typically, the higher the concentration of the suspended material the greater the turbidity. The value of 1 ntu is reco [..]

A cloudiness in transparent coating caused by finely suspended matter.

An insoluble particle that imparts opacity to a liquid.

The visual appearance of cloudy water filled with suspended particles. Turbidity, as an optical property, may be measured and used to rate water quality and clarity.

A quantitative value for the clarity of water sample—the higher the turbidity the more cloudy the water. Turbidity is measured with a turbidimeter, which measures the scattering effect that suspended particles have on light. Virus

A measure of water clarity. Low turbidity means the water is clear. Technically, turbidity is an optical property of the water based on the amount of light reflected by suspended particles. The cloudy appearance of water is caused by the presence of suspended and colloidal matter, but turbidity cannot be directly equated to suspended solids because [..]

is a measure of the cloudiness of water, caused by the presence of suspended particles of sediment, organic and inorganic matter. High turbidity levels can interfere with drinking water treatment proc [..]

increased “cloudiness” of water caused by floating material, such as silt or organic matter.

  Any finely divided insoluble impurities that mark the clarity of the water.

The amount of solid material floating in water. It may be organic (from plants and animals) or inorganic (silt and clay).

A measure of the cloudiness of water which indicates the amount of dispersed solid matter.

Cloudiness of a solution caused by the scattering of light by colloidal particles or by suspended precipitate or sediment.

The cloudy appearance of water caused by the presence of suspended and colloidal matter. In the waterworks field, a turbidity measurement is used to indicate the clarity of water. Technically, turbidi [..]

The measurement of the amount of scattering and absorption of light rays, caused by small particles of solid matter, suspended in water. back to top

Any finely divided, insoluble impurities that mar the clarity of the water.

To water engineers, turbidity means cloudiness. Turbidity in water can be harmless, or it may indicate to water engineers that extra filtration, flocculation, and sedimentation is needed.

Turbidity is the measure of the relative clarity of water. Turbid water is caused by suspended and colloidal matter such as clay, silt, organic and inorganic matter, and microscopic organisms. Water [..]

The thickness, opaqueness or reduced clarity of water caused by the suspension of sediments. The turbidity of rivers and streams increases after a rainfall.

The amount of solid particles that are suspended in water and that cause light rays shining through the water to scatter. Thus, turbidity makes the water cloudy or even opaque in extreme cases. Turbid [..]

Clarity of the water.

A measure of material, usually fine sediments, suspended in water; determined by passing light through a water sample.

A condition caused by the presence of suspended matter and/or absorption of light rays.

Any condition of the atmosphere (except clouds) which reduces its transparency to radiation, especially to visible radiation: smoke, haze, dust, scintillation effects.

The thickness or opaqueness of water caused by the suspension of matter. The turbidity of rivers and lakes increases after a rainfall.

a measure of the opacity of the atmosphere. A perfectly clear sky has a turbidity of 0, and a perfectly opaque sky has a turbidity of 1. Turbidity is affected by air molecules and aerosols

The thickness or opaqueness of water caused by the suspension of matter. The turbidity of rivers and lakes increases after a rainfall.

the cloudiness of the water caused by suspended particles.

a cloudy condition in water due to suspended silt or organic matter.

A measure of the amount of material suspended in the water. Increasing the turbidity of the water decreases the amount of light that penetrates the water column. High levels of turbidity are harmful to aquatic life.

The presence of suspended material such as clay, silt, finely divided organic material, plankton, and other inorganic material in the water.

measure of the amount of fine particles of solid matter suspended water.

Any finely divided, insoluble impurities that mar the clarity of the water.

The cloudiness or haziness of a fluid caused by individual particles that are generally invisible to the naked eye, similar to smoke in air.

the cloudy or muddy appearance of a naturally clear liquid caused by the suspension of particulate matter.

A measure of the degree to which light is scattered by suspended particulate material and soluble colored compounds in the water. It provides an estimate of the muddiness or cloudiness of the water du [..]

the degree of opacity of a fluid.

Hazy or cloudy condition of water due to the presence of suspended particles.

The thickness or opaqueness of water caused by the suspension of matter. The turbidity of rivers and lakes increases after a rainfall.

The measure of suspended matter in, a water sample which contributes to the reflection of light or cloudiness.

A measure of the murkiness of water, reflecting the amount of suspended sediment in the water. High turbidity reduces the amount of light available to the plants and animals living in the water. It re [..]

Turbidity is the cloudiness or haziness of a fluid caused by large numbers of individual particles that are generally invisible to the naked eye, similar to smoke in air. The measurement of turbidity [..]