Dogs exposed to lawn pesticides develop similar cancers as humans exposed to lawn pesticides, but in dogs the cancers appear with a much shorter time lag - only a few years. In contrast, human cancers can take decades to appear. This is why dogs can be viewed as "sentinel species" - they show risks or dangers due to chemical exposures in the environment earlier than humans.
This is why this study having both humans and dogs wear silicone monitoring devices to measure chemicals (pesticides, flame retardants, and phthalates) they are exposed to in the environment is so interesting. Both dogs and humans showed similar exposure levels to the chemicals. Think of it - whatever our pet dogs are exposed to in the environment, we also are exposed to it. And if something causes harm, we probably also are being harmed by it.
Man's best friend may also be man's best bet for figuring out how environmental chemicals could impact our health. Researchers from North Carolina State University and Duke University's Nicholas School of the Environment used silicone dog tags as passive environmental samplers to collect information about everyday chemical exposures, and found that dogs could be an important sentinel species for the long term effects of environmental chemicals. ...continue reading "Are Our Dogs Early Warning Systems For Harmful Chemical Exposures?"