This article was very interesting, it's on a study that was done to check the amount of chemicals in the environment and in our homes and how they turn up in our pets systems.....they tested the blood of dogs and cats and found dangerous levels of chemicals present just from them living in our own homes from using their bowls, toys, their beds, cleaners, dust, etc. etc........
Polluted Pets | Environmental Working Group Study Finds Pets Suffer From Household Pollutants