Hexachlorobenzene

Hexachlorobenzene (HCB) is a chemical compound that was used in the agricultural industry as a fungicide. It is a persistent organic pollutant (POP) that is harmful to human health and the environment.

History

Hexachlorobenzene was first produced in 1825, but it was not used widely until the 1940s. It was used as a fungicide in the agricultural industry, particularly for the treatment of seeds. However, due to its harmful effects on human health and the environment, its use was banned in many countries in the 1980s.

Properties

Hexachlorobenzene is a white crystalline solid with a characteristic odor. It is not soluble in water but is soluble in most organic solvents. It is highly resistant to degradation and can persist in the environment for many years.

Health Effects

Exposure to hexachlorobenzene can cause a variety of health effects. These include skin lesions, respiratory problems, and changes in the liver and immune system. It is also a potential carcinogen.

Environmental Impact

Hexachlorobenzene is a persistent organic pollutant that can remain in the environment for many years. It can accumulate in the food chain and cause harm to wildlife. It is also a potential contributor to global warming due to its ability to absorb and emit heat.

Regulation

Due to its harmful effects, the use of hexachlorobenzene has been banned in many countries. It is also listed as a persistent organic pollutant under the Stockholm Convention.

See Also

• Persistent organic pollutant
• Stockholm Convention
• Fungicide
• Carcinogen

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