Roundup, the most widely used herbicide in the country, is sprayed on everything from cotton to canola, lawns to golf courses. So it stands to reason that the stuff winds up in our air and water. But when you’re eating “Roundup Ready” food, as in, food that’s been genetically modified to withstand all those Roundup applications, you’re eating it too, according to plant pathologist Don Huber, PhD, professor emeritus at Purdue University. That’s problematic because scientists are learning that Roundup affects defensive enzymes our bodies use to keep us healthy. Roundup also reduces a plant’s ability to take up vital micronutrients that humans require for survival.

Corn, soy, and canola are common crops that have been genetically engineered to withstand heavy dousings of Roundup (or other glyphosate-containing chemicals), and foods containing these ingredients tend to contain higher levels of Roundup than other crops do. To avoid genetically engineered (GE) foods and Roundup in your food, buy organic.

Nasty indoor air-polluting culprits, volatile organic compounds, or VOCs, could be trashing your indoor air, especially in the kitchen, the basement, or even the laundry room. (Scented, petroleum-based laundry detergents contain high levels of VOCs.) These hazardous chemicals are linked to asthma and, in some instances, even cancer, and they add to indoor air pollution. Pressed wood and particleboard cabinets and other furniture are big emitters of the VOC (and carcinogen) formaldehyde in the home, too.

Instead, choose unscented, plant-based detergents, or go old-school and use castile soap or washing soda and borax to clean your clothing. For new paint projects, choose readily available no-VOC paint, and avoid storing paint in your garage or basement–fumes can escape even tightly closed lids and enter your home. Avoid plywood and particleboard when buying new household furnishings, and keep VOCs contained by sealing any plywood or particleboard furniture with a product like AFM Safecoat Safe Seal.