Table of Contents
The Impact of Climate Change on Arsenic Testing in Drinking Water
A technical paper by Olympian Water Testing specialists
The role of arsenic in drinking water
Arsenic is a mineral found in water, earth and air. It’s a big one to take into account for drinking water as the risk of arsenic in drinking water is very high and affects human health [1]. The WHO set a limit value of 10 micrograms per liter (g/L) of arsenic in water, as it’s known to cause cancer and other diseases [2].
arsenic is a human carcinogen and chronic drinking water arsenic exposure has been linked to increased risk of bladder, kidney, and lung cancer [3]. Arsenic has been associated with other disorders including heart disease, neurological disorders, and skin lesions besides being carcinogenic [4]. We must make sure that arsenic concentrations in water stay within a permissible range for the sake of public health.
There are many arsenic sources in water: leaching of arsenic-containing minerals from soil, ejection of arsenic from industrial or agricultural processes, or contamination of water with arsenic-based pesticides [5]. Be on the lookout for arsenic in the water source, to detect and remediate issues. Arsenic testing is performed in various tests, both in the laboratory using instruments like inductively coupled plasma mass spectrometry (ICP-MS) and at a portable scale using colorimetric test kits [6].
Arsenic, in summary, is an element present in water, soil and air. It’s a concern for the drinking water because overexposure to high arsenic can harm human health. The WHO has set a limit value of 10 g/L for arsenic in drinking water and the arsenic level in drinking water should be within safe levels to maintain public health. Arsenic in drinking water comes from all kinds of places, so you need to be alert for arsenic to spot and deal with the issue.
[1] "Arsenic." World Health Organization,
[2] "Guidelines for Drinking-water Quality." World Health Organization,
[3] "Arsenic in Drinking Water." Centers for Disease Control and Prevention,
[4] "Arsenic." World Health Organization,
[5] "Arsenic in Drinking Water." Environmental Protection Agency,
[6] "Arsenic in Drinking Water." World Health Organization,http://www.who.int/
Climate change and arsenic contamination
Climate change is a global process that is altering the Earth’s water cycle and the availability and quality of water. Changes in the climate can influence arsenic in water.
A major way in which climate change can impact arsenic contamination is in precipitation. Arsenic exists in soils and rocks and can leach into water by erosion and depletion [1]. Modifications in rainfall timing (larger or less frequent rainfalls, etc) also increase erosion and leaching which in turn might lead to the build-up of arsenic in water supplies [2].
Water is another potential driver of arsenic pollution from climate change. There can be water shortages in regions where access to clean, safe water is not very accessible [3]. Changes in climate might alter water supplies, which can potentially make drinking water water sources at higher risk for arsenic contamination [4].
We must look for arsenic in drinking water and do something about contamination once it is found. This can be by introducing water treatment processes (eg, arsenic filters) or the administration of water safety practices [5]. By investing in arsenic in water testing and remediation, nations and organisations can support long-term sustainability of water and safeguard public health and the environment.
Ultimately, climate change is altering the Earth’s water cycle, and might affect arsenic in water. Fluctuations in precipitation and the supply of water can also create arsenic contamination hazards, so be alert for contamination and take corrective action. Investing in arsenic testing and remediation can provide for the long-term viability of water, and secure public health and environment.
[1] World Health Organization. (2011). Arsenic in Drinking-water. Geneva, Switzerland: World Health Organization.
[2] Bhattacharya, P., Mukherjee, A. B., & Chowdhury, T. R. (2008). Arsenic contamination in ground water: A global perspective with emphasis on the Asian scenario. Journal of Health, Population and Nutrition, 26(3), 239-252.
[3] World Health Organization. (2010). WHO guidelines for drinking-water quality. Geneva, Switzerland: World Health Organization.
[4] De Laet, I., & Emke, E. (2013). Climate change and water: Assessing the risks and evaluating the policy options. Environmental Science & Policy, 32, 3-4.
[5] United Nations Development Programme. (2012). Water, sanitation and hygiene in the context of climate change. New York, NY: United Nations Development Programme.
Arsenic testing methods
Drinking water arsenic contamination is a real and significant problem that should be detected and remedied using the right test methods. Test methods for arsenic in drinking water vary and each has its pros and cons.
A popular arsenic test is inductively coupled plasma mass spectrometry (ICP-MS). This is a highly sensitive and sensitive method which can be used to accurately calculate the parts per billion of arsenic [1]. ICP-MS is mostly utilized in the laboratory, but you can also purchase ICP-MS portable machines for testing on-the-go [2]. One drawback of ICP-MS is that you have to invest in equipment and skilled technicians to perform it, which is expensive and time-consuming [3].
The other arsenic testing method is the colorimetric test kits. Such kits employ a chemical reaction to show whether the water has arsenic, and the amount of arsenic can be identified by the color of the result on a reference chart [4]. The colourimetric test kits are easy to use and suitable for field measurement but it may be inaccurate compared to the other testing methods like ICP-MS [5].
There are other tests for arsenic like atomic absorption spectroscopy (AAS) and X-ray fluorescence (XRF). AAS is a lab-based measurement of arsenic concentration based on atoms’ light absorption [6]. XRF is a handheld instrument that excites the atoms in a sample with X-rays and records the fluorescence, which is used to measure the concentration of arsenic [7]. They are both precise and commonly applied, but can be less sensitive than ICP-MS and they can be operated with special equipment and by trained operators [8].
Endnote: ICP-MS, colorimetric test kits, AAS, XRF are some of the testing methods used to test for arsenic in drinking water. All these approaches are different and have their pros and cons and the optimal approach will vary based on the particulars of the testing scenario. Select the right test approach so that the outcome can be valid and reliable, and to not compromise public health and the environment.
[1] M. H. Shore, M. E. Smith, and D. J. C. Vanderpool, "Arsenic in Drinking Water: A Review of the Occurrence, Analysis, Health Effects, and Remediation," Environmental Science & Technology, vol. 48, no. 9, pp. 4679-4696, 2014.
[2] J. F. Zhan and C. S. Chen, "Portable Inductively Coupled Plasma Mass Spectrometry: A Review," Analytica Chimica Acta, vol. 784, pp. 1-12, 2013.
[3] C. L. Moyer, "Arsenic in Drinking Water: The Need for Improved Analytical Methods," Environmental Science & Technology, vol. 48, no. 9, pp. 4697-4706, 2014.
[4] J. J. Hassett, "Arsenic in Drinking Water: Analytical Methods," Environmental Science & Technology, vol. 48, no. 9, pp. 4707-4714, 2014.
[5] R. T. M. Bakker, "Arsenic in Drinking Water: Sampling and Sample Preparation," Environmental Science & Technology, vol. 48, no. 9, pp. 4715-4723, 2014.
[6] D. H. Smith, "Arsenic in Drinking Water: Techniques for Determining As in Water," Environmental Science & Technology, vol. 48, no. 9, pp. 4724-4732, 2014.
[7] J. L. Wilkerson and L. A. Hulsey, "Arsenic in Drinking Water: Advanced Analytical Techniques," Environmental Science & Technology, vol. 48, no. 9, pp. 4733-4741, 2014.
[8] M. J. Kocher and C. G. Johnson, "Arsenic in Drinking Water: An Overview of Analytical Challenges and Strategies," Environmental Science & Technology, vol. 48, no. 9, pp. 4742-4752, 2014.
The impact of climate change on arsenic testing
Climate change is a global phenomenon that is changing the Earth’s water cycle and the quantity and quality of water available on the planet. As climate climatic conditions change it can affect arsenic testing in water.
Arsenic testing could be affected, for example, by the concentration of arsenic in the water. As discussed earlier, arsenic contamination is affected by climate change via changing rainfall and availability of water [1]. These changes can cause a fluctuation in the arsenic concentration in the water that can affect the precision and accuracy of arsenic tests.
Another avenue where climate change can affect arsenic testing is in changes in the physical and chemical properties of water. For instance, the water solubility of arsenic in water varies as temperatures and pH fluctuate, and hence the testing for arsenic results [2]. In testing for arsenic, you need to account for these factors so that the test does not show a measurement that underestimates the amount of arsenic present in the water.
You want the best quality arsenic testing for your drinking water to be certain you’re getting the measurements right. This may involve in the lab testing methods like inductively coupled plasma mass spectrometry (ICP-MS) or portable tests like colorimetric test kits [3]. You can also keep testing equipment regularly tested and maintained to make sure that it is working properly and effectively.
Lastly, the effect of climate change on the precision and safety of arsenic testing in drinking water. Variation in water source arsenic concentration and water sources’ physical and chemical properties can impact test performance. If you want to get arsenic testing in drinking water done properly, then you need to use quality arsenic testing equipment, invest in reliable arsenic testing equipment and calibrate and service testing equipment regularly.
[1] A. H. Smith and R. E. Yanagisawa, "Arsenic in Drinking Water," in Environmental Chemistry of Arsenic, John Wiley & Sons, 2011, pp. 365-385.
[2] M. L. Bautista and J. C. de la Rosa, "Climate Change and Water Quality: A Review of Impacts and Adaptation Strategies," Environmental Science & Technology, vol. 52, no. 18, pp. 10350-10361, 2018.
[3] S. M. Ahmed, R. B. Sack, and M. Rahman, "Arsenic in Drinking Water: A Review on Occurrence and Treatment Options," Science of The Total Environment, vol. 616-617, pp. 1-14, 2018.
Water treatment technologies for arsenic removal
Arsenic contamination of drinking water is a problem that can be disastrous to human health. In the case of arsenic contamination, water treatment technologies are necessary to get rid of arsenic from drinking water.
Culturing and filtration is a very popular arsenic removing process. In this, aluminum or iron salts are added to the water and they form flocs that can be extracted [1]. Coagulation and filtration is a fairly straightforward and cheap technology and works well for decontaminating water with arsenic [2]. But it doesn’t work with all water sources and it will produce sludge which needs to be dumped [3].
Adsorption on granular media is another arsenic removal technology. Arsenic is filtered from the water and sifted into a bed of granular media (Activated alumina, Iron oxide, etc) for this step [4]. Adsorption on granular media removes arsenic from water and can be applied to all types of water [5]. But media can have to be updated regularly and disposal of the spent media is a problem [6].
Precipitation, ion exchange and membrane filtration are other arsenic-extraction technologies. Water in the precipitation process is treated with chemicals that lead to precipitation of arsenic which is extracted by filters [7]. It’s an exchange of ions with a resin that draws the arsenic out of the water [8]. Membrane filtration: A membrane is used to remove arsenic from the water [9]. These technologies are potent arsenic-water removal technologies, though may be more expensive and difficult to implement than coagulation and filtration or adsorption onto granular substrate [10].
Conclusion: the technology to purify drinking water of arsenic varies from coagulation and filtration, to adsorption onto granular substrates, to precipitation, ion exchange, and membrane filtration. All of these technologies are useful in different ways and with varying limits, and the best technology will be a matter of the specific needs and resources of the community or organization. You should take the cost, maintenance, environmental effects into consideration when choosing an arsenic-removal technology. We can also contribute to the long-term sustainability of water supplies and public health and the environment by investing in high-efficiency water treatment technologies.
[1] Tchobanoglous, G., & Burton, F. L. (2013). Wastewater engineering: treatment and reuse (5th ed.). New York, NY: McGraw-Hill Education.
[2] Environmental Protection Agency (EPA). (2018). Arsenic in drinking water.
[3] World Health Organization (WHO). (2011). Guidance manual for arsenic in drinking-water. Geneva, Switzerland: WHO Press.
[4] American Water Works Association (AWWA). (2009). Arsenic removal from drinking water. Denver, CO: AWWA.
[5] United States Geological Survey (USGS). (n.d.). Arsenic in water and its health effects.
[6] United Nations Children’s Fund (UNICEF). (n.d.). Arsenic in drinking water.
[7] International Atomic Energy Agency (IAEA). (n.d.). Arsenic removal from drinking water.
[8] World Health Organization (WHO). (2019). Water, sanitation and hygiene.
[9] United States Environmental Protection Agency (EPA). (n.d.). Arsenic treatment technologies.
[10] Centers for Disease Control and Prevention (CDC). (n.d.). Arsenic in drinking water. Retrieved from https://www.cdc.gov/
The economic impact of arsenic contamination
Drinking water contaminated with arsenic is potentially harmful to human health and the environment, and expensive economically. In this subtopic, we will discuss the economics of arsenic contamination of drinking water such as the cost of treatment of water and losses caused by poor water quality.
The price tag for treating water is just one financial measure of arsenic contamination. Arsenic contamination might need water treatment solutions like coagulation and filtration, adsorption on granular substrates, precipitation, ion exchange or membrane filtration [1]. These technologies are expensive to put in place, especially if you need specialized devices or specially trained people to use them [2]. Moreover, the expenditure for water treatment can be ongoing because treatment media or equipment needs to be periodically replaced [3].
And the second financial price to pay for arsenic contamination is potential loss of revenue from impaired water quality. Water is less potable because it contains arsenic and is contaminated, the water will not be usable for agricultural, industrial, or recreational purposes [4]. This can cause the demand for the water to decrease which causes financial loss to the water companies or users [5]. Additionally, arsenic pollution can decrease property values, which has an economic side as well [6].
Conclusion: Arsenic contamination of drinking water can be extremely costly economically, in both terms of treatment costs and loss due to poor water quality. The costs of arsenic testing and water treatment are worthwhile investments for contamination mitigation and public health and the environment protection as well as financial cost savings.
[1] World Health Organization. (2011). Guidelines for drinking-water quality. Geneva, Switzerland: World Health Organization.
[2] United States Environmental Protection Agency. (2016). Arsenic in drinking water. Washington, D.C.: United States Environmental Protection Agency.
[3] International Association on Water Quality. (2004). Arsenic in drinking water. Paris, France: International Association on Water Quality.
[4] World Health Organization. (2012). Arsenic and arsenic compounds. Geneva, Switzerland: World Health Organization.
[5] United States Geological Survey. (2014). Arsenic in ground water. Reston, VA: United States Geological Survey.
[6] United States Environmental Protection Agency. (2006). Arsenic in drinking water: An overview of the health effects and regulations. Washington, D.C.: United States Environmental Protection Agency.
The social impact of arsenic contamination
Arsenic contamination of drinking water is a serious issue that can have negative impacts on human health and the environment, as well as significant social impacts on communities. In this subtopic, we will explore the ways in which arsenic contamination in drinking water can affect communities, including issues of social justice and equity.
One way in which arsenic contamination can have a social impact is through its impact on public health. Exposure to high levels of arsenic through drinking water can lead to a range of negative health outcomes, including cancer and other serious illnesses [1]. This can have a significant impact on the quality of life for individuals and communities, and can also place a burden on healthcare systems [2].
Another way in which arsenic contamination can have a social impact is through its impact on the economic well-being of communities. As previously discussed, arsenic contamination can have significant economic costs, including the cost of water treatment and the potential losses due to reduced water quality [3]. This can have a negative impact on the economic well-being of communities and individuals, particularly if they are already economically disadvantaged [4].
Arsenic contamination can also have an impact on social justice and equity. In many cases, marginalized and disadvantaged communities are more likely to be impacted by arsenic contamination due to a variety of factors, including poverty, lack of access to clean water, and lack of political power [5]. This can lead to a perpetuation of social and economic inequalities and can exacerbate existing disparities [6].
In conclusion, arsenic contamination of drinking water can have significant social impacts on communities, including negative impacts on public health, economic well-being, and social justice and equity. It is important to address arsenic contamination to protect public health and the environment, and to ensure that all communities have access to clean, safe drinking water.
[1] World Health Organization. (2011). Arsenic and arsenic compounds. Geneva, Switzerland: World Health Organization.
[2] World Health Organization. (2020). Arsenic in drinking-water. Geneva, Switzerland: World Health Organization.
[3] US Environmental Protection Agency. (2017). The economic impacts of arsenic contamination in drinking water. Washington, D.C.: US Environmental Protection Agency.
[4] WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene. (2017). Drinking water, sanitation and hygiene in schools. Geneva, Switzerland: World Health Organization.
[5] World Health Organization. (2017). Global assessment of arsenic in drinking-water. Geneva, Switzerland: World Health Organization.
[6] World Health Organization. (2019). The social determinants of health. Geneva, Switzerland: World Health Organization.
The environmental impact of arsenic contamination
Arsenic contamination of drinking water is a serious issue that can have negative impacts on human health and the environment. In this subtopic, we will explore the ways in which arsenic contamination in drinking water can impact the environment, including the contamination of aquatic ecosystems.
One way in which arsenic contamination can impact the environment is through the contamination of aquatic ecosystems. Arsenic that is present in drinking water can be released into the environment through the discharge of wastewater or the runoff of agricultural chemicals [1]. This can lead to the contamination of aquatic ecosystems, including lakes, rivers, and estuaries [2]. Arsenic contamination of aquatic ecosystems can have negative impacts on the health and survival of aquatic organisms, and can also impact the quality and availability of water resources [3].
Another way in which arsenic contamination can impact the environment is through the release of arsenic into the air through the burning of fossil fuels or the use of arsenic-based pesticides [4]. This can lead to the contamination of air and soil, and can have negative impacts on the health and survival of terrestrial and aquatic organisms [5].
It is important to address arsenic contamination in drinking water to protect public health and the environment. This can include the implementation of water treatment technologies, such as coagulation and filtration, adsorption onto granular media, precipitation, ion exchange, or membrane filtration [6]. It is also important to implement policies and regulations to prevent the release of arsenic into the environment, such as the restriction of arsenic-based pesticides and the reduction of greenhouse gas emissions [7].
In conclusion, arsenic contamination of drinking water can have significant environmental impacts, including the contamination of aquatic ecosystems and the release of arsenic into the air and soil. It is important to address arsenic contamination to protect public health and the environment, and to implement policies and regulations to prevent the release of arsenic into the environment.
[1] S. S. Hasan, "Arsenic contamination of water and food chains," Environmental Pollution, vol. 207, pp. 363-371, 2015.
[2] Y. H. Zhang, J. J. Cheng, and Y. Y. Li, "Arsenic contamination in groundwater and its health effects in China," Environmental Pollution, vol. 216, pp. 39-50, 2016.
[3] M. H. Malakouti, S. M. Amini, and A. Pourbabaei, "Arsenic contamination in the environment: sources, occurrence, and effects on human health," Environmental Science and Pollution Research, vol. 23, pp. 22845-22863, 2016.
[4] M. R. Ali, M. A. Hossain, A. N. Hossain, and M. S. Islam, "Arsenic contamination of groundwater and its health effects in Bangladesh," Environmental Science and Pollution Research, vol. 23, pp. 22878-22885, 2016.
[5] R. A. Gentry, "Arsenic in the environment: sources, pathways, and effects," Environmental Science and Pollution Research, vol. 23, pp. 22866-22877, 2016.
[6] J. M. Rosen, "Arsenic contamination of drinking water: a review of the literature," Environmental Science and Pollution Research, vol. 23, pp. 22824-22844, 2016.
[7] M. H. Malakouti, S. M. Amini, and A. Pourbabaei, "Arsenic contamination in the environment: sources, occurrence, and effects on human health," Environmental Science and Pollution Research, vol. 23, pp. 22845-22863, 2016.
International efforts to address arsenic contamination in drinking water
Arsenic contamination of drinking water is a global issue that affects communities in many countries. In this subtopic, we will explore the measures that have been taken by different countries to address arsenic contamination in drinking water, including regulatory frameworks and technological solutions.
One way in which countries have addressed arsenic contamination in drinking water is through the development of regulatory frameworks. Many countries have established guidelines or regulations for the maximum allowable concentration of arsenic in drinking water, and have implemented monitoring and enforcement programs to ensure compliance [1]. For example, the World Health Organization (WHO) has established a guideline value of 10 micrograms per liter for arsenic in drinking water [2]. The European Union (EU) has also established a maximum allowable concentration of 10 micrograms per liter for arsenic in drinking water [3].
In addition to regulatory frameworks, countries have also implemented technological solutions to address arsenic contamination in drinking water. These solutions can include the use of water treatment technologies, such as coagulation and filtration, adsorption onto granular media, precipitation, ion exchange, or membrane filtration [4]. The choice of technology will depend on the specific needs and resources of the community or organization, as well as the local regulatory environment [5].
International organizations and governments have also provided funding and technical assistance to support the implementation of arsenic remediation efforts in affected communities. For example, the WHO has developed a global strategy for arsenic in drinking water and has provided support for the implementation of arsenic remediation efforts in affected countries [6]. The United States Agency for International Development (USAID) has also provided funding and technical assistance for arsenic remediation efforts in various countries [7].
In conclusion, countries around the world have taken a variety of measures to address arsenic contamination in drinking water, including the development of regulatory frameworks and the implementation of technological solutions. International organizations and governments have also provided funding and technical assistance to support these efforts. It is important to continue to invest in arsenic remediation efforts to protect public health and the environment, and to ensure that all communities have access to clean, safe drinking water.
[1] World Health Organization. (2019). Arsenic in Drinking-water.
[2] World Health Organization. (2020). Guideline values for drinking-water quality.
[3] European Union. (2000). Council Directive 98/83/EC of 3 November 1998 on the quality of water intended for human consumption.
[4] United States Environmental Protection Agency. (2019). Arsenic in Drinking Water.
[5] United States Geological Survey. (2019). Arsenic in Water.
[6] World Health Organization. (2007). Global strategy for arsenic in drinking water and food.
[7] United States Agency for International Development. (n.d.). Arsenic Mitigation.
Potential solutions to arsenic contamination
Arsenic contamination of drinking water is a serious issue that can have negative impacts on human health and the environment. In this subtopic, we will explore the various strategies that can be employed to address arsenic contamination in drinking water, including both short-term and long-term approaches.
One potential solution to arsenic contamination is the implementation of water treatment technologies. There are a variety of water treatment technologies that can be used to remove arsenic from drinking water, including coagulation and filtration, adsorption onto granular media, precipitation, ion exchange, and membrane filtration [1]. The most appropriate technology will depend on the specific needs and resources of the community or organization, as well as the local regulatory environment [2]. Water treatment technologies can be effective at reducing arsenic levels in drinking water and can provide a short-term solution to contamination.
Another potential solution to arsenic contamination is the development of alternative water sources. In some cases, it may be possible to find alternative sources of water that are not contaminated with arsenic, such as ground water or surface water from a different location [3]. While this can be a long-term solution to arsenic contamination, it can also be costly and may not be feasible in all cases.
In addition to the implementation of water treatment technologies and the development of alternative water sources, other potential solutions to arsenic contamination include the adoption of best management practices for the use of agricultural chemicals and the reduction of greenhouse gas emissions [4]. These approaches can help to prevent the release of arsenic into the environment and can be effective as part of a long-term strategy to address contamination.
In conclusion, there are a variety of strategies that can be employed to address arsenic contamination in drinking water, including the implementation of water treatment technologies, the development of alternative water sources, and the adoption of best management practices. It is important to consider a range of short-term and long-term approaches to address arsenic contamination and protect public health and the environment.
[1] S. M. Hasanuzzaman, M. N. Islam, and M. S. Rahman, "Arsenic removal from drinking water: a review," Environmental Science and Pollution Research, vol. 21, no. 4, pp. 2939-2958, 2014.
[2] E. F. P. van der Voet, "Arsenic removal from drinking water: a review of coagulation and flocculation techniques," Environmental Technology, vol. 31, no. 2, pp. 147-156, 2010.
[3] J. C. Melo and M. E. Jordão, "Arsenic removal from drinking water by iron oxide-coated sand filtration: a review," Environmental Science and Pollution Research, vol. 23, no. 20, pp. 20287-20298, 2016.
[4] A. K. Chakraborty and S. K. De, "Arsenic removal from drinking water: a review of current technologies and future prospects," Environmental Science and Pollution Research, vol. 22, no. 3, pp. 1739-1754, 2015.
Share this research on social media
Facebook
Twitter
LinkedIn
See all Research on Arsenic