Menace of Microplastic

Syllabus: Environment

Source: DTE

Context: As the world moves toward the finalization of the Global Plastics Treaty, reducing microplastic pollution has become an urgent priority, demanding a multi-pronged approach involving regulations, innovative technologies, and global cooperation.

What are Microplastics and Their Classifications

• Definition: Plastics less than 5 mm in diameter, formed through fragmentation or intentionally manufactured for specific uses.

• Classifications: Primary Microplastics: Manufactured for commercial use, such as microbeads in cosmetics, plastic pellets, and synthetic fibers. Secondary Microplastics: Formed from the breakdown of larger plastics, such as water bottles, due to solar radiation, ocean waves, and mechanical forces.

• Primary Microplastics: Manufactured for commercial use, such as microbeads in cosmetics, plastic pellets, and synthetic fibers.

• Secondary Microplastics: Formed from the breakdown of larger plastics, such as water bottles, due to solar radiation, ocean waves, and mechanical forces.

Applications of Microplastics

• Medical and Pharmaceutical: Used in drug delivery systems due to their ability to absorb and release chemicals effectively.

• Industrial: Utilized in air-blasting technology and in producing synthetic textiles.

• Personal Care Products: Found in exfoliating agents like facial scrubs, toothpaste, and other cosmetics.

Impacts of Microplastics:

• On the Environment:

• Soil Degradation: Reduces soil quality, alters chemical properties, and disrupts water retention and nutrient cycles. Aquatic Pollution: Bioaccumulates in marine organisms and contributes to toxic chemical leaching into water bodies.

• Soil Degradation: Reduces soil quality, alters chemical properties, and disrupts water retention and nutrient cycles.

• Aquatic Pollution: Bioaccumulates in marine organisms and contributes to toxic chemical leaching into water bodies.

• On Animals:

• Trophic Transfer: Microplastics consumed by smaller organisms are passed through the food chain, affecting higher predators. Reproductive and Growth Impacts: Causes stunted growth, reduced fertility, and cell damage in aquatic and terrestrial species.

• Trophic Transfer: Microplastics consumed by smaller organisms are passed through the food chain, affecting higher predators.

• Reproductive and Growth Impacts: Causes stunted growth, reduced fertility, and cell damage in aquatic and terrestrial species.

• On Humans:

• Health Risks: Linked to oxidative stress, inflammation, DNA damage, and disruptions in metabolism and reproduction. Organ Accumulation: Detected in the brain, lungs, placenta, and even heart tissues, increasing risks of stroke, heart attacks, and immune disorders.

• Health Risks: Linked to oxidative stress, inflammation, DNA damage, and disruptions in metabolism and reproduction.

• Organ Accumulation: Detected in the brain, lungs, placenta, and even heart tissues, increasing risks of stroke, heart attacks, and immune disorders.

Measures Taken:

• Global Level:

• UNEA Resolution: Mandated the creation of the Global Plastics Treaty to combat plastic pollution, including microplastics. New Zealand Microbead Ban (2017): Banned sale and manufacture of products containing microbeads.

• UNEA Resolution: Mandated the creation of the Global Plastics Treaty to combat plastic pollution, including microplastics.

• New Zealand Microbead Ban (2017): Banned sale and manufacture of products containing microbeads.

• India Level:

• Plastic Waste Management Rules (2016, 2018, 2024): Provides frameworks to manage and reduce plastic waste. Ban on Single-Use Plastics: Nationwide ban on items like plastic straws and cutlery to reduce plastic pollution. India Plastics Pact: Encourages industries to minimize plastic use and enhance recycling practices.

• Plastic Waste Management Rules (2016, 2018, 2024): Provides frameworks to manage and reduce plastic waste.

• Ban on Single-Use Plastics: Nationwide ban on items like plastic straws and cutlery to reduce plastic pollution.

• India Plastics Pact: Encourages industries to minimize plastic use and enhance recycling practices.

Measures to Mitigate Microplastics:

• Innovative Technologies: Develop advanced filtration systems like electrocoagulation for wastewater treatment to remove microplastics.

• Regulating Production: Ban microbeads and control the use of secondary plastic sources in consumer products.

• Recycling and Waste Management: Promote efficient recycling systems and reduce overall plastic production.

• Awareness Campaigns: Educate industries and consumers about the impact of microplastics and encourage sustainable alternatives.

• Standardized Monitoring: Implement global protocols for detecting and assessing microplastic concentrations in the environment.

Best Practice: The EU’s REACH Regulation (2023) bans intentionally added microplastics in products like detergents, cosmetics, and fertilizers, aiming to reduce their environmental and health impacts.

Conclusion

Microplastics represent a global challenge with significant risks to ecosystems, wildlife, and human health. While efforts like the Global Plastics Treaty and national policies are steps in the right direction, a collective approach involving innovation, regulation, and public awareness is crucial to mitigate this threat and protect our environment.

Insta Links:

• Managing-microplastic-pollution-in-India

• What are the impediments in disposing the huge quantities of discarded solid waste which are continuously being generated? How do we remove safely the toxic wastes that have been accumulating in our habitable environment? (UPSC-2018)