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Overview
Metals have played an integral part in human societies for thousands of years; from clothing, to infrastructure, to transport and weapons, metal is an ubiquitous part of our environment. Metals have many beneficial uses, but unfortunately, many of them are also toxic, posing health risks for both humans and the environment should they be released into the environment. This essay will discuss the toxicity of metals and the associated health risks, as well as the methods used in controlling their emission.
Definition
In simplest terms, metals are substances that are harder than glass, are malleable and ductile, and are able to conduct electricity and heat. Metals are found naturally in ores and are extracted through mining, smelting and refining processes. Metals have useful and beneficial properties, such as being relatively strong and malleable, making them well suited for producing construction materials and tools, but they can also be toxic.
Types of Toxic Metals
The metals most likely to be toxic are heavy metals; that is, metals that are denser than most other types of metal. Common examples of heavy metals include lead, mercury, cadmium, chromium and arsenic, but there are many more. These metals are toxic due to their tendency to accumulate in living organisms, which can lead to a variety of negative health effects.
Health Risks
Exposure to metals can have a number of health effects, depending on the type of metal and the dose of exposure. For some metals, such as lead and mercury, even low-level exposure can have harmful health effects. The long-term health effects of metal exposure can include; neurological damage, kidney damage, respiratory problems, reproductive problems, cancer and immunological problems. In addition, metals are commonly found in water supplies and can lead to a variety of health problems if ingested, including skin and eye problems, liver and kidney damage, and reproductive problems.
Controlling Metal Toxicity
There are a number of ways in which metal toxicity can be controlled. The most important steps are to reduce or limit exposure to the metal, and to ensure that it is not released into the environment. Controlling metal exposure can include using protective equipment, such as masks and gloves when working with metals, and ensuring that any waste materials are safely disposed of.
In addition, there are a number of methods that can be used to prevent the release of metals into the environment. One of the most effective strategies is to use ‘best practice’ in industrial processes. This involves following established procedures to reduce emissions and contamination, such as using smokestack scrubbers and other air pollution control technologies.
Conclusion
Metals are an important and ubiquitous part of our society; they play a vital role in a number of industrial processes, and have a variety of beneficial uses. However, some metals are toxic and can pose a risk to human health and the environment if not properly controlled. In order to reduce the risk of metal toxicity, exposure and emissions must be controlled, and best practices must be followed in industrial processes.