Microplastics Are in Your Blood, Lungs, and Organs

Plastic isn't just in the ocean anymore. It's in you. Micro and nanoplastics have been measured in human blood, lungs, liver, and other organs. A new review lays out exactly how much and what it means.

Mapping Plastics Inside the Human Body

A 2026 review in J Hazard Mater compiled the evidence on quantitative human biomonitoring of micro and nanoplastics. That means researchers measured the actual amounts of plastic particles present in human tissues and fluids.

The review documents exposure profiles: where these particles accumulate, how they get there, and what types of plastics are most common. Polyethylene (think plastic bags and bottles) and polypropylene (food containers, bottle caps) are among the most frequently detected.

How Plastics Get Inside You

You breathe them in from household dust. You eat them from food packaging. You drink them in tap and bottled water. Once inside, the smallest particles (nanoplastics) can cross cell membranes and enter the bloodstream. From there, they travel to organs throughout the body.

The review details the mechanisms: inflammation, oxidative stress, and cellular damage are the common threads across studies. The health implications range from cardiovascular issues to immune disruption.

What You Can Do

Reduce plastic in your daily life. Store food in glass or stainless steel. Filter your water. Vacuum with a HEPA filter to reduce plastic-laden dust. Browse our non-toxic home essentials for plastic-free alternatives that lower your exposure.

Also see non-toxic kitchen essentials for safer alternatives.

Source: J Hazard Mater. (2026).