Microplastics have taken over: oceans, soil, food, water, and even our own bodies. It’s an alarming reality. These tiny fragments of plastic are found everywhere, and as a material scientist, I see just how complex it gets. If we truly want to tackle the problem, we have to understand where microplastics come from and recognize that our own habits keep feeding the cycle.

So, where do these start? There are two main sources. First, primary microplastics, which are made tiny from the start. Think microbeads, once found in facial scrubs or the little plastic pellets in factories to make products. Then, there are secondary microplastics, which form when larger plastics such as bottles, bags, and synthetic clothes break down over time. Sunlight, friction, washing machines, just everyday wear and tear gradually shred plastics. One plastic bottle can eventually become thousands of tiny fragments. And the truth is, we all contribute; tossing plastic bottles, washing polyester clothing, throwing away another plastic bag. Every small action adds more microplastics to the environment.

What causes plastics to break down? They are made of polymers, which are long, tough chains, but even these are not unbreakable. UV rays, heat, friction, and air cause damage. Leave a plastic bottle in the sun and it becomes brittle, cracks, and falls apart. Wash synthetic clothes and they shed microfibers with every cycle. Even car tires leave behind plastic dust on the road. And these particles do not just vanish; they float in the air, drift in water and eventually end up in our food.

What can you do about it? Here’s what research suggests:

• Choose sturdier plastics over cheap, flimsy ones. Thicker containers last longer and do not break down as quickly
• Keep plastics out of direct sun. UV light destroys them, so store items in the shade or indoors
• Wash synthetic clothes less often, or use a microfiber filter in your washing machine. These filters capture a significant amount of fibers before they are washed away
• Repair and reuse whenever possible. The longer you keep an item in use, the less waste you create
• Go for glass, metal, or natural materials when you can; they do not break down into microplastics

Worried about what might be sneaking into your food or water? Try this:

• Avoid microwaving food in plastic. Heat speeds up the breakdown, allowing tiny particles and chemicals can end up in your meal. Use glass or ceramic instead
• Stick with plastics labeled #1, #2, or #5. Avoid #3 (PVC) and #7 (mixed plastics), as they break down faster and often cause additional issues
• Drink filtered tap water. Believe it or not, studies show bottled water typically contains more microplastics than filtered tap water
• Cut down on single-use packaging. Look for “Plastic-Free” or “Bio-based” labels when shopping
• Choose clothes made from cotton, wool, or bamboo instead of synthetics whenever possible

Every small change counts. It’s not just about saving the planet, you are protecting your own health as well.

Microplastics might be tiny, but their impact is not. Smarter choices such as better materials, fewer disposable items, repairing what you have, washing clothes more carefully, keeping plastics out of the sun all help slow the problem at its source.

Material scientists study how plastics break down so that everyone, including shoppers, companies, and regulators, gets real data for smarter decisions. That’s why DKSH Technology builds tools to analyze polymers, test how plastics age, detect microplastics, and check for chemicals that leach out. Solid science allows us to make safer products and actively move toward a cleaner future.

Sources:

• Microplastics | Marine Debris Program
• Plastic pollution | UNEP – UN Environment Programme
• A review on the occurrence, analytical methods, and impact of microplastics in the environment – ScienceDirect
• Overview of microplastic pollution and its influence on the health of organisms: Journal of Environmental Science and Health, Part A: Vol 58 , No 4 – Get Access
• Arctic sea ice is an important temporal sink and means of transport for microplastic | Nature Communications