The Human Cost of Plastics

Plastic pollution is no longer just an environmental issue it is a growing public health concern.

Plastics are indispensable, as discussed earlier, yet they severely harm not only cows, bulls, wild animals, and sea creatures but also human health.

Plastic pollution poses health risks that start long before plastic becomes waste and persist throughout its entire life cycle. To clarify how plastics endanger human health, we must examine every stage of their life cycle.

As we have already learnt in the earlier articles in this series, almost 99% of plastic is produced using fossil fuels. The extraction of oil and gas, especially hydraulic fracturing, or fracking, for natural gas, releases a wide range of toxic substances into the air and water, often in significant quantities.

More than 170 chemicals used in fracking to produce the main feedstocks for plastic are known to have harmful effects on human health. These include links to cancer, neurological damage, reproductive and developmental toxicity, impairment of the immune system, and several other serious concerns.

These toxins have direct and well-documented effects on the skin, eyes, and other sensory organs. They also affect the respiratory, nervous, and gastrointestinal systems, as well as the liver and brain.

The danger does not end there. During the processing of fossil fuels to make plastic resins and additives, carcinogenic and other highly toxic substances are released into the air. Exposure to these substances can lead to damage to the nervous system, reproductive and developmental problems, cancer, and even genetic impacts such as low birth weight.

Misuse of Plastic

Street vendors, small roadside shop owners, and security guards at various residential complexes are often seen carrying hot, boiling tea in small plastic bags. It is a common sight in many places, and one we hardly stop to think about.

The average temperature of that tea is about 60 degrees Celsius. At such temperatures, harmful compounds such as styrene and bisphenol A can leach from the polythene bag into the tea.

Regular exposure to these toxic chemicals is linked to endocrine disruption, a higher risk of cancer, and possible problems related to the immune system. In other words, what appears to be a harmless daily habit can slowly pose serious health risks over time.

This problem does not end there. We also often order food from restaurants, and it reaches our doorstep packed in plastic containers. This, too, can be harmful to our health, especially when the food is still steaming hot.

When hot food is stored in plastic containers, harmful chemicals from the plastic can leach into the food. As a result, a routine convenience that has become part of modern life may also be quietly adding to our exposure to toxic substances.

Microplastics and Nanoplastics

We encounter microplastics everywhere in trash, dust, fabrics, cosmetics, cleaning products, rain, seafood, fresh produce, table salt, and even in the air we breathe. They have become so widespread that avoiding them completely has become almost impossible.

Microplastics enter our lungs through the air we inhale while breathing. They also enter our digestive system through the food and water we consume. In fact, microplastics have already been detected inside the human body.

Once inside the body, these particles can be carried through the bloodstream to different organs. Microplastics have been found in the liver, kidneys, reproductive organs, and even in the brain and heart. In pregnant women, these particles can reach the developing foetus through the placenta. Even breast milk has been found to contain microplastics, raising serious concerns about exposure beginning at the earliest stages of life.

Microplastics smaller than 1 micrometre, known as nanoplastics, are of even greater concern. These tiny particles can actually enter cells and may interfere with how the cells function.

Extensive research is currently underway to understand exactly how these minute particles move from the lungs and the gastrointestinal tract into other organs and tissues. Scientists are still studying the full extent of the damage they may cause, but the growing evidence is already deeply worrying.

Are there any rules and regulations in place to control plastic waste? Of course, there are stringent rules and policies. I will discuss them in my next article. Till then, have

a great weekend.

(The writer is an environmentalist. Views personal.)