» RELATED: Considering the water diet? Here's what you need to know
According to the research, the plastic debris found in the water bottles included polypropylene, nylon and polyethylene terephthalate, which is used to make bottle caps. The particles are likely a result of the industrial bottling and plastic packaging process.
But the effects of these chemicals on human health, scientists say, are still unclear.
"As much as 90% of ingested plastic could pass through a human body, but some of it may end up lodged in the gut, or traveling through the lymphatic system, according to research by the European Food Safety Authority," Time reported.
Previous research has linked synthetic chemicals often found in plastic to “certain kinds of cancer to lower sperm count to increases in conditions like ADHD and autism,” Mason said, prompting calls for further studies on the possible health implications of plastics pollution.
Read the full study at orbmedia.org.