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T N Godavarman Case and Definition of Forest |

T N Godavarman Case and Definition of Forest

Context:

∙ A study has found that a litre of bottled water can contain more than one lakh particles of micro and nano plastics.

About the Findings:

∙ The Scientists used a custom Hyperspectral Stimulated Raman Scattering (SRS) imaging platform to capture multiple images of an object’s molecules at different wavelengths.

Findings:

∙ The investigation revealed the presence of around 2.4 lakh micro and nano plastic particles per litre of bottled water.

∙ It found an average of over a quarter of a million plastic particles per litre of bottled water, 90% of which were nanoplastics.

Microplastics:

∙ These are tiny fragments of plastic that are less than 5 millimetres in diameter. They originate from various sources, including cosmetics, city dust, road markings, and engineered plastic pellets.

∙ However, the majority of the primary microplastics in the world’s oceans come from the laundry of textiles (35%) and the abrasion of tires while driving (28%).

Nanoplastics:

∙ These are even smaller, with dimensions ranging from 1 nanometer to 1 micrometre.

∙ They are believed to be more toxic than larger microplastics as they can more easily enter the human body.

Prevalence and Impact:

∙ Microplastics and nanoplastics have spread to every corner of the planet, from the deepest parts of the ocean to the heights of Mount Everest.

∙ They have infiltrated the guts of seabirds, agricultural crops, human blood, and drinking water.

Threat to Human Health:

∙ The long-term health effects of consuming micro- and nanoplastics are still under investigation.

∙ However, it is known that nanoplastics are believed to be more toxic than larger microplastics as they can more easily enter the human body.

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