Photo: Peter Dazeley (The Image Bank/Getty Images)

Disposable plastic water bottles are a bad idea for numerous reasons. You’re paying top dollar for tap water. Those plastic bottles are an environmental menace. And now, in case you didn’t need another reason to suck it up and buy yourself a nice non-disposable bottle already, Time and other outlets report today that a new study found that water in most of those unnecessary bottles actually contains “microplastic contamination.”

The study comes to us from Orb Media and researchers at the State University of New York At Fredonia (interestingly, not a Marx brothers reference). Time reveals:

A study carried out on more than 250 water bottles sourced from 11 brands in nine different countries revealed that microplastic contamination was nearly universal, found in more than 90 percent of the samples.

The researchers uncovered twice the level of plastic contamination found in the group’s previous study on tap water. Also, the survey included well-known brands like Aquafina, Dasani, Evian, Nestlé, and San Pellegrino. While it’s unclear what effect these plastics may have on the human body, it seems fairly intuitive that this contamination is not only 1) needlessly expensive but 2) easily avoided.

Granted, I live in Chicago, which contains, as my husband likes to say, “the Cadillac of water.” Some other areas (Flint, Michigan) aren’t as fortunate. But unless you live in a place known for its heinous water supply, just pony up and buy a water bottle the next time you’re at Target.