Can flea and tick collars harm your health and your pet's? The answer is yes, according to a new report by the Natural Resources Defense Council. "Poison on Pets II" found that some collars release invisible toxic residues on pets' fur that can get onto people when they touch their dogs or cats. Unsafe levels of those chemicals can remain on pet fur for two weeks after a collar is placed on an animal.
The NRDC tested dog and cat fur for propoxur and tetrachlorvinphos (TCVP) after placing widely available flea and tick collars on the animals. Collars made by Hartz, Zodiac, and Bio Spot were used in the study, but any products containing propoxur or TCVP can pose serious health risks.
Both pesticides can damage the brain and nervous system, disrupt hormones, and cause cancer. These chemicals can cause a variety of poisoning symptoms from nausea and vomiting to seizures and respiratory paralysis. In large doses they can poison and even kill cats and dogs.
Children are particularly vulnerable because their bodies are still developing and they tend to put their hands in their mouths after playing with pets so they're more likely to ingest pesticide residues than adults. According to the report, pesticides in this class of chemicals have been linked to delays in motor development, ADHD, and Parkinson's Disease.
Propoxur levels were so high in some collars that they pose a cancer risk in children that is up to 1,000 times higher than the EPA's acceptable levels, and up to 500 times higher for adults, the report say. Wal-Mart is working with suppliers to eliminate propoxur from the products it sells.
Luckily, you don't need toxic chemicals to banish fleas and ticks. Here are some healthier alternatives:
Try non-chemical methods first.
Choose the least toxic products.
Want to do more? It would be far easier for consumers if hazardous chemicals weren't in the products lining store shelves in the first place. Sign a petition requesting that the EPA ban toxic pesticides from pet products.
Environmental journalist Lori Bongiorno shares green-living tips and product reviews with Yahoo! Green's users. Send Lori a question or suggestion for potential use in a future column. Her book, Green Greener Greenest: A Practical Guide to Making Eco-smart Choices a Part of Your Life is available on Yahoo! Shopping and Amazon.com.
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