Water Quality Monitoring Parameters

Multiparameter

Multiparameter

RS Hydro provide a wide range of multiparameter water quality instruments, sensors and meters ranging from process analysers to single parameter sensors and multiparameter water quality sondes.

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Ammonia / Ammonium

Ammonia / Ammonium

Ammonia is normally found in very low concentrations in natural waters. It is a result of microbiological activity breaking down nitrogen-containing material. Elevated levels of ammonia can be very harmful to aquatic life and fish in particular. 

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Blue Green Algae

Blue Green Algae

Blue-green algae or cyanobacteria represent a group of organisms that can produce potent natural toxins. When excess nutrients are present the algae populations can explode causing large blooms. These can deplete oxygen levels and block light from reaching aquatic plants

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BOD

BOD

Biological Oxygen Demand (BOD) provides an estimate of the oxygen uptake by microorganisms during the breakdown of organic material present in a water sample. It is usually measured in the laboratory under controlled conditions over a 5-day period (i.e. BOD5) and oxygen depletion compared to a control.

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Bromide

Bromide

Bromide is a Chemical compound commonly used as a tracer for the detection of fertilizers within the natural environment. In many cases bromide is used as an alternative to Chloride as there are less occurrences of bromide with the natural environment. Bromide is detected using a sensor called an ISE (ion selective electrode).

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CDOM

CDOM

Dissolved organic matter (DOM) is a mixture of soluble organic compounds and is an essential component of biochemical cycling. In aquatic systems it controls nutrient availability, UV light penetration, metal availability and transport, ecosystem productivity and can create disinfectant by-products during water treatment processes. CDOM, or Coloured Dissolved Organic Matter, represents a large proportion of the total DOM pool particularly terrestrially derived humic and fulvic acids.

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Chloride

Chloride

Almost all natural waters contain chloride ions; the concentration varies according to local mineral content of the underlying geology. Road salt used as de-icer can lead to elevated levels of chloride, which are harmful to aquatic life. High levels of chloride in drinking water can lead to an unpleasant briny taste.

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Chlorine

Chlorine

Chlorine has a primary use within water treatment systems in particularly drinking water, swimming pools and many water treatment systems. The main role of chlorine is to kill off any micro organisms within the water. Chlorine is commonly measured as residual and total chlorine.

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Chlorophyll

Chlorophyll

Chlorophyll is a green pigment found in almost all plants, algae, and cyanobacteria. High amounts of chlorophyll in a water body are an indicator of nutrient pollution, as excess nutrients fuel the growth of algae.

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COD

COD

Chemical Oxidation Demand (COD) is a test that measures the amount of oxygen required to chemically oxidize the organic material present in water. The most commonly adopted method involves the addition of potassium dichromate and concentrated sulphuric acid to the water sample with oxygen concentration measured before and after. Many governments impose strict regulations regarding the maximum COD that wastewater discharge can exhibit.

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