Transcript for Is the Color Yellow Dangerous?
Yellow. It's the color of sunshine, bananas and Sara Haines' hair. What can be wrong with yellow. I call it blond, not yellow. I'm going to be in trouble for that. Potential danger in the brightly colored items you use every day. It's raising concerns about a long-banned chemical. Gio Benitez is here to explain it. Good morning. The woman you're about to meet is sounding the alarm right now. When it comes to yellow, don't be color blind. Look around the house, yellow is all over the place. Brightening up bath time. E ♪ ruby ducky you're the one ♪ cheering us up like Forrest gufrp's t-shirt. And helping us study. But it might be dangerous. A new study from Rutgers university revealing that the color used to color so many of the yellow belongings may not be sunshine. They're everywhere, into our products and coming into our home. We know it's part of the class of kpaunds that causes problems. It's pcb-11, banned in 1979 and found in paint, paper and clothing. And the woman behind the study says it's leaking out a potentially harmful toxin. Not enough science showing the effects on humans, some decease say pcbs in general lead to cancer, irritation in the nose and lungs and birth defects. I don't think people should be terrified, but be aware. Not every yellow product has the chemical, makes you think about the household items that come in the sunshiny shade. Towels, bottles, note pads, you name it. And most concerning, toys. Color now has some parents, like Michelle, a popular mommy blogger, thinking twice. We're talking about the color yellow, which is in so many things. You can't really shop your way out of that. You can't. So what can you do in the researcher says she washes any new yellow clothing for her kids a few times in hot water before letting them wear any of it. You know what, I got -- Our yellow. What are we going to do?
This transcript has been automatically generated and may not be 100% accurate.