University of New York study finds several micro plastic particles in packaged water. It has conducted the study from 19 locations in nine countries on five continents. These included Brazil, China, India, Indonesia, Kenya, Lebanon, Mexico, Thailand and the United States. The plastic debris, which was found in 93 per cent of the tested samples, included polypropylene, nylon and polyethylene terephthalate (PET). The global average was 325 particles per litre. Particle concentration ranged between zero and over 10,000 likely plastic particles in a single bottle. The study was supervised by Sherri Mason, chair, department of geology and environmental sciences, State University of New York at Fredonia, and a leading micro plastics researcher.