Arsenic is a naturally occurring element with chemical symbol **As** and atomic number 33. It is found in small amounts in the Earth’s crust and is usually mixed with other elements such as oxygen, chlorine and sulphur. Arsenic has historically been used in a variety of industrial processes, including pesticides, wood preservatives and glass production.
### Types of Arsenic:
– **Inorganic Arsenic**: This form is found in combination with other elements, usually in minerals. It is highly toxic and is often found as an industrial and environmental pollutant.
– **Organic Arsenic**: This form is commonly found in plant and animal tissues and is generally considered to be less toxic.
### Health Hazards:
Exposure to arsenic, especially in inorganic form, can be harmful. Chronic exposure to arsenic, often through contaminated water or food, can cause a variety of health problems, including:
– **Cancer**: Long-term exposure has been linked to skin, lung, bladder and kidney cancers.
– **Skin conditions**: such as hyperpigmentation and keratosis.
– **Cardiovascular Effects**: Long-term exposure can cause cardiovascular disease and neurological problems.
Sources of exposure:
– **Contaminated Water**: Groundwater in some areas may contain high levels of arsenic.
– **Food**: Some foods, especially rice, can accumulate arsenic from the environment.
– **Industrial Process**: Industrial workers may be at risk of using compounds containing arsenic.
### Code:
Arsenic levels in drinking water are regulated by agencies such as the US Environmental Protection Agency (EPA) to reduce health risks. The maximum arsenic contamination level in drinking water in the United States is set at 10 parts per billion (ppb).
Overall, although arsenic is a naturally occurring element, its potential health hazards require careful management, especially in areas with high natural groundwater levels or certain occupations. Professional settings.