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Humans are exposed to toxic chemicals and microplastics at all stages in the plastics life cycle. Microplastics' effects on human health are of growing concern and an area of research. The tiny particles known as microplastics (MPs), have been found in various environmental and biological matrices, including air, water, food, and human tissues.
And chemicals often found in plastics are known to cause a variety of health problems, including cancers, metabolic disorders, attention deficit/hyperactivity disorder, and fertility issues.
Finding microplastics in human body parts is not new: Scientists have uncovered the minuscule waste products in human blood, lungs, brains, hearts and testicles. But a new study, published Monday ...
The Food and Drug Administration said in a statement: “Current scientific evidence does not demonstrate that levels of microplastics or nanoplastics detected in foods pose a risk to human health.”
Microplastics are likely to degrade into smaller nanoplastics through chemical weathering processes, mechanical breakdown, and even through the digestive processes of animals. Nanoplastics, or NPs, are a subset of microplastics and they are smaller than 1 μm (1 micrometer or 1000 nm). Nanoplastics cannot be seen by the human eye. [4]
However, as plastic is broken down into smaller pieces and eventually microplastics, there is a higher likelihood that it will be consumed by plankton and enter into the food chain. [58] As plankton are eaten by larger organisms, the plastic may eventually cause there to be bioaccumulation in fish and other marine species eaten by humans. [58]
People with microplastics and nanoplastics in plaque lining a major blood vessel in their neck may have a higher risk of heart attack, stroke or death, new research suggests. Doctors found tiny ...
Tumor stroma and extracellular matrix in hypoxia. Tumor hypoxia is the situation where tumor cells have been deprived of oxygen.As a tumor grows, it rapidly outgrows its blood supply, leaving portions of the tumor with regions where the oxygen concentration is significantly lower than in healthy tissues.