7. Plastic bottles

Most bottled water can be found in disposable plastic bottles. Similar to foods that contain plastic, these bottles leach microplastic and other dangerous chemicals into the water. What most people don’t know is that bottled water is frequently sitting in those bottles for months. Moreover, the plastic bottle is filled just after it’s created and is off-gassing chemicals.

But that’s not all. A plastic bottle that sits in direct sunlight deposits even more microplastics. Studies have shown that bottled water contains twice the amount of plastic fiber as tap water—as many as 10,000 plastic pieces per 0.2 gallons.

If you have to buy bottled water, aim for a brand that has glass bottles. Although even with a glass water bottle there may be plastic in the lid, it will be significantly less than in the case of a plastic bottle.