Saumya Pandey
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Written By: saumya pandey | Updated : March 3, 2024 5:01 PM IST
Adopting sustainable practices and minimizing plastic use remain critical steps.
Recent research has shed light on the alarming prevalence of nano- and microplastics (NMPs) in tap water, raising significant health concerns. With NMPs infiltrating various products and water sources, understanding their impact and devising effective mitigation strategies is imperative. A groundbreaking study, published in Environmental Science & Technology Letters, unveils the potential of boiling tap water as a simple yet powerful solution to reduce NMP exposure by up to 90%. By elucidating the mechanism behind boiling and its efficacy in removing NMPs, this research offers promising insights into safeguarding public health amidst the pervasive challenge of microplastic pollution.
Boiling water, particularly water rich in minerals, creates a chalk-like residue known as limescale, which effectively traps microplastics. This residue can be separated from the water using standard filtration methods, such as coffee or stainless steel filters.
The effectiveness of NMP removal is directly linked to water hardness. Harder water, containing higher levels of minerals like calcium carbonate (CaCO3), demonstrates greater NMP removal efficiency compared to softer water samples.
Microplastics, including polystyrene (PS), polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET), are commonly found in groundwater and surface water due to wastewater and surface runoff.
While the health risks of microplastic exposure are not fully understood, inhalation and ingestion have been linked to cell function disruption, inflammation, and oxidative stress. Short-term effects primarily impact the gut microbiome, potentially leading to intestinal issues.
Traditional water treatment methods often fail to eliminate NMPs, necessitating alternative approaches like boiling. However, boiling alone may not suffice to address broader microplastic exposure, necessitating lifestyle changes such as avoiding single-use plastics and minimizing plastic use in daily life.
Boiling water in glass or stainless steel containers for five minutes, followed by cooling without stirring, allows microplastics to bind with calcium and settle, facilitating their removal. However, boiling is not a panacea, and efforts to reduce microplastic exposure should encompass various sources beyond tap water.
While boiling and filtering tap water represent viable strategies to mitigate microplastic exposure, further research is essential to comprehensively address this pervasive environmental and health challenge. As scientists continue to unravel the complexities of microplastic pollution, adopting sustainable practices and minimizing plastic use remain critical steps in safeguarding human and environmental health.
