How to test the ink in newspapers for toxicity.

Most modern newspaper ink has a base of soy or water, which is not known to be toxic.Not all newspapers are safe.Some newspapers may still use inks with a high amount of volatile organic compounds.It is a good idea to make sure they are on the safe side.

You can see through the newspaper if it is placed up to a light source.How dark is the ink, compared to other sources?If the ink color is not crisp or dark, it could have something in it.Soy-based inks are known to be darker than those that contain oil.To be on the safe side, it is best to dispose of any ink that looks faded; it's more likely that this type of ink contains a higher amount of dangerous VOCs.

Rub the newspaper with your finger.If there is a lot of black smudges on your finger, it's possible that the newspaper is using oil that never dries.You should wash your hands.The oil used in inks is similar to what is used for lubrication in cars.It is not safe to have long contact with animals and give them bedding because they will chew the newspaper.

Information about what goes into the ink can be found on the newspaper's website.Information about the composition of the ink can be found on many websites.It is less safe if it contains petrol.Soy is a listed ingredient that can be safer.If you can't find any information on the newspaper's website, call the listed number.

If you need a definite answer, take the newspaper to a university or lab.It can be tested directly for its properties.Depending on your access, this option will be easier or harder.Outside of getting the information directly from the source, it is the only way to be certain.