What is Arsenic? What are Arsenic in Water and its Hazards?

The question of what is arsenic is one of the most curious topics for both individuals who want to protect their health and families aiming to reach clean drinking water. Basically, arsenic (As) is a highly toxic chemical element found naturally in the earth's crust, known for its tasteless, colourless and odourless structure. Throughout history, this colourless and odourless nature has caused it to be referred to as "the perfect murder weapon" in the detective novels of legendary authors such as Agatha Christie and Arthur Conan Doyle. This element, which was frequently preferred in political assassinations from Ancient Rome to the Middle Ages, has been nicknamed the "King of Poisons" in history because its poisoning symptoms are very similar to cholera.

Today, it appears as an invisible public health threat rather than a murder mystery. Leaching into water sources and agricultural lands, this heavy metal accumulates in our environment both naturally and as a result of human activities. This toxic element, which can be found naturally in soil and rocks, poses a serious risk, especially when it enters groundwater. In this comprehensive guide, we will examine in detail what arsenic is, its devastating effects on our health, how it is harboured in municipal water, and most importantly, how to purify water to protect our family from this hidden danger.

What is Arsenic?

Arsenic is found in various forms both in nature and as a result of human activities. The answer to the question "What is arsenic?" can explain the chemical properties of the element. While organic arsenic compounds are generally less toxic, inorganic arsenic compounds carry serious risks to human health.

Arsenic is widely used in the production of metal alloys, glass and ceramic industry, electronic devices and some pesticides. In natural resources, it can be found in rocks, soil and mineral deposits. Therefore, there is a possibility of environmental exposure. Arsenic shows toxic effects when it enters the body in high doses and may cause organ damage in long-term exposure.

Where is Arsenic Found?

Arsenic is never found free in nature; it is usually present in the structure of rocks and soils as inorganic compounds combined with other elements such as sulphur, oxygen and iron. Purely natural geological processes such as volcanic eruptions, natural erosion of rocks and dissolution of minerals are the primary cause of the release of this element into the environment. However, the problem is not only the cycle of nature itself; the human factor carries the spread of this toxic element to dangerous dimensions.

Industrial activities exponentially increase the presence of arsenic in nature. Mining wastes, coal-burning thermal power plants, wood preservative chemicals, some paints and pesticides used uncontrolled in agriculture in the past are the main human sources of leaching of this toxic substance into the environment. In fact, as an interesting historical fact, women in Victorian England used arsenic-containing lotions and creams for the sake of dangerous beauty trends such as having paler and smoother skin, which led to many cases of poisoning. In addition, before the invention of modern antibiotics (penicillin), compounds of this heavy metal were used in the treatment of diseases such as syphilis.

Is There Arsenic in Mains and Drinking Water?

The biggest and most dangerous way for this toxic element to enter the human body is through drinking water. As rainwater percolates deep into the soil, it dissolves the natural arsenic found in the underground rocks and carries it to the groundwater (aquifers). Especially artesian wells and mains water systems fed from underground sources can contain a significant amount of arsenic in the water when they are not properly filtered. As it is colourless and odourless, it is impossible to tell if this substance is present in your water with the naked eye or by tasting it; this situation definitely requires a professional water analysis.

The seriousness of the issue is quite large on a global scale. According to World Health Organisation (WHO) data, approximately 140 million people worldwide are exposed to drinking water containing arsenic above legal limits. The population at risk of exposure to high concentrations in groundwater is estimated to range between 94 million and 220 million. The most tragic example that proves how vital it is to control tap and drinking water is the Bangladesh crisis, known as the largest mass poisoning in history. Due to improperly drilled wells, 35 to 77 million people in this country were exposed to highly arsenic water and tens of thousands of people lost their lives. Bangladesh, India, China, Argentina, Chile, Chile, Mexico and certain parts of the United States are the places where underground arsenic levels have raised alarms.

What is Arsenic in Water?

Arsenic in water occurs when arsenic compounds from groundwater, natural sources or industrial activities mix into water. The question "What is arsenic in water?" indicates that water contains arsenic through measurement results. Water contains mostly inorganic arsenic and this form is more dangerous than organic arsenic compounds.

When arsenic levels in drinking water are high, even everyday uses of water, such as preparing meals, making tea or coffee, increase health risks. Arsenic in water can have adverse effects on the kidney, liver and nervous system in long-term exposures and may increase the risk of cancer. It is therefore vital that water supplies are regularly tested for arsenic and that necessary treatment methods are applied.

What is Arsenic in Rice?

Since rice is a wetland cereal, it is directly affected by arsenic accumulation in soil and water. Arsenic in rice is mostly in inorganic form and this form carries a higher risk for human health. Regular consumption of rice with high arsenic content can lead to developmental problems, especially in pregnant women and children.

In addition, arsenic accumulation can also be seen in flour, semolina and rice-based snacks obtained from rice. For this reason, preferring low arsenic-containing varieties in rice consumption and applying the correct cooking methods significantly reduces arsenic exposure.

What is Heavy Arsenic?

Heavy arsenic refers to the form of arsenic that has a high toxic effect and has the ability to accumulate in the body. Long-term exposure causes permanent damage to the kidneys, liver and nervous system. Heavy arsenic is particularly prevalent in areas where groundwater is rich in arsenic and can enter the body through drinking water. Therefore, regular inspection of water sources and implementation of appropriate treatment methods play a critical role in preventing heavy arsenic exposure.

What are Arsenic Hazards?

Arsenic is a toxic element that can cause serious health problems in long-term exposure. Due to its ability to accumulate in the body, its effects occur over time and adversely affect different organ systems. Arsenic exposure can cause both chronic and acute health problems. The main harms of arsenic exposure are as follows:

  • Skin problems: Pigmentation changes, skin spots and lesions occur.
  • Respiratory system effects: Irritation, chronic cough and shortness of breath may develop.
  • Liver and kidney function: Long-term arsenic exposure may impair organ function and produce toxic effects.
  • Cancer risk: Increased chance of developing skin, lung and bladder cancer.
  • Nervous system effects: Headache, fatigue, impaired balance and nervous system damage may occur.
  • Cardiovascular problems: Increased risk of high blood pressure and cardiovascular diseases.
  • Developmental effects: Risks of developmental problems and growth retardation arise for pregnant women and children.

Arsenic accumulates in the body and affects many organs and systems, especially in long-term exposures. It has adverse effects on the skin, respiratory, liver, kidney, nervous and cardiovascular systems and increases the risk of cancer. Therefore, it is vital to protect against arsenic exposure and to keep the consumption of arsenic-containing water and food under control.

How to Clean Arsenic in Drinking Water?

Since arsenic in drinking water poses serious health risks, it should be removed from water by effective treatment methods. One of the most widely used systems for this purpose is reverse osmosis (RO) filters. RO systems remove 95% to 99% of arsenic and other heavy metals from water while allowing the passage of water molecules and provide safe drinking water.

Activated alumina filters also significantly reduce arsenic levels in water by chemically binding arsenic ions. Iron filters help prevent arsenic accumulation by allowing iron added to the water to react with arsenic and precipitate. Carbon filters, often used as pre-treatment, contribute to the reduction of arsenic and other chemical impurities and improve the taste of water. Sediment filters, on the other hand, filter sediment and particles in the water, prevent arsenic accumulation areas and enable filtration systems to work more effectively.

All these filtration methods, when supported by regular maintenance and filter changes, keep arsenic levels in drinking water within safe limits and significantly reduce the risk of arsenic exposure.

Do Water Purifiers Remove Arsenic?

The answer to this question is definitely yes, but only when using devices with the right technology. Although standard carbon filters or simple pitcher-type purifiers remove chlorine and bad odours, they are completely inadequate to retain heavy metals such as arsenic. This is where reverse osmosis technology comes into play. Reverse osmosis physically blocks heavy metals, carcinogens and viruses in water by passing water through a semi-permeable membrane at high pressure, thanks to its pores one millionth of a millimetre in size. The success of reverse osmosis technology in arsenic filtration has been proven by authorities worldwide and is an indisputable fact.

In order to provide your family with safe drinking water in your homes, treatment systems with NSF (National Sanitation Foundation) certification and high membrane quality should be preferred. Strict adherence to the filter change periods of the device is a critical step to ensure that the membrane's capacity to hold these heavy metals does not decrease. Aesthetic designs and powerful reverse osmosis technology with water purifiers, aesthetic designs and powerful reverse osmosis technology, aims to deliver the purest and healthiest water to your home by eliminating the invisible dangers in your mains water.

The arsenic limits of the legal authorities in drinking water show how sensitive the treatment devices have to work:

Institution / OrganisationMaximum Acceptable Arsenic Limit
World Health Organisation (WHO)10 micrograms/litre (10 µg/L)
US Environmental Protection Agency(EPA)10 micrograms/litre (10 µg/L)
Republic of Turkey Ministry of Health10 micrograms/litre (10 µg/L)

As can be seen from the table, even 10 micrograms (one thousandth of a milligram) in 1 litre of water is considered to be the limit for human health. Advanced reverse osmosis systems can reduce these values in your water much lower than safe limits.

Why is Arsenic in Drinking Water Dangerous?

Arsenic in drinking water, when consumed regularly, accumulates in the body and causes serious health problems. The use of a water purifier reduces arsenic levels to safe limits and reduces cancer, kidney disease and cardiovascular risks in the long term. Especially reverse osmosis and activated alumina systems are recommended as the most effective solutions for arsenic removal.

How to Recognise Arsenic in Water?

The presence of arsenic in water is determined by laboratory tests or household arsenic test kits. Precipitate formation, colour change or colour indicator of chemical test kits are used to determine the arsenic level. Arsenic concentration can also be monitored by regular analyses.

Frequently Asked Questions

What is arsenic, what are the harms? (What is arsenic, does it kill?)

Arsenic is a chemical element that occurs naturally in the earth's crust, is tasteless and odourless, and is absolutely lethal in high doses. The major damages to the human body are severe vomiting, diarrhoea, abdominal pain and heart failure in acute poisoning. In case of long-term (chronic) exposure, skin thickening, dark spots, liver damage, collapse of the immune system and neurological problems occur. Proven to be carcinogenic.

Where is arsenic most commonly found? (Where is arsenic found?)

In its natural state, it is mostly found in rocks, underground minerals and soil. The areas where it accumulates most intensively are artesian wells and underground drinking water. In human sources, it is found in pesticides, mining wastes, wood preservatives and tobacco smoke.

How does arsenic poisoning occur?

It is often caused by drinking water high in arsenic or consuming food and agricultural products prepared with such water. Accidental ingestion or inhalation of chemical pesticides used in agriculture or industry or inhalation of arsenic gas (arsine) can also cause acute poisoning.

Which foods contain arsenic?

Rice and rice-based products, which easily absorb arsenic from the soil through their roots, are the most important dietary sources. It can also be found in apple juices, some root vegetables, chicken and meat products. Seafood and seaweed species, on the other hand, contain high levels of "organic arsenic", which is harmless to humans.

For a healthy future and safe water consumption, do not neglect to pay attention to the quality of your mains water, have water analyses done in suspicious cases and use a water purifier with high standards in your home. Remember, water is life; it gives life only when it is clean.