Microplastic Awareness Systems - Marine life and human health

Marine Life and Human Health

Microplastics are consumed at all levels of the marine ecosystem/food chain.

Phytoplankton and Zooplankton: These foundational organisms ingest microplastics, disrupting nutrient cycling and energy transfer.
Fish Larvae and Small Fish: Microplastics interfere with growth, development, and survival.
Larger Marine Life: Turtles, seabirds, and fish consume contaminated prey, leading to bioaccumulation

Other Animals and Humans: These plastics move up the food chain, culminating in exposure to predators, including humans.

How Microplastics Enter the Human Body

1. Ingestion

Contaminated Food: Seafood (especially filter feeders like mussels), table salt, fruits, vegetables, and even honey can carry microplastics.
Contaminated Water: Found in both bottled and tap water worldwide.
Food Packaging: Heating or storing food in plastic can release particles into food.

2. Inhalation

Airborne Microplastics: Present in household dust, outdoor air, and from synthetic fabrics. Can deposit in lungs.

3. Dermal Contact

Less common, but personal care products and contaminated water may allow limited microplastic absorption through the skin.

Health Impacts from Microplastics

Musculoskeletal System

Oxidative stress on joints, which may worsen arthritis and delay post-injury recovery.

Immune System

Lungs

Kidneys and Bone

Cadmium–microplastic synergy may affect renal function and bone health, contributing to osteoporosis.

Digestive Tract (GIT)

Can lead to inflammation, barrier disruption, digestive disorders, and potentially GIT cancers.

Reproductive System

Evidence suggests potential damage to testicular tissue (e.g., University of New Mexico study).
May impair fertility and disrupt hormonal regulation (endocrine disruption).

Endocrine System

Microplastics can carry endocrine-disrupting chemicals like BPA and phthalates, impacting metabolism and hormone balance.

Neurological Effects

Associated with brain and cognitive disorders (e.g., research from University of Rhode Island and Thais Mauad at University of São Paulo).

Cardiovascular and Muscular Systems

May contribute to heart conditions, muscle, tendon, nerve, and bone impairments.

Cancer

Chronic inflammation and chemical exposure raise concerns about long-term cancer risk in various organs.

At-Risk Populations

Children: Developing organs and behaviours (e.g., mouthing objects) increase vulnerability.
Pregnant Women: Potential for placental transfer of microplastics.
Elderly and immunocompromised individuals: Reduced detox capacity makes effects more severe.
Workers in high-exposure environments: e.g., textile, plastic, and construction industries.

References can be provided on email request.

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