Paint is generally more toxic than glue. This is due to the higher concentration of volatile organic compounds (VOCs) and heavy metals often found in paints. VOCs are a group of chemicals that can cause a range of health issues, including respiratory irritation, headaches, and even cancer. For instance, according to the U.S. Environmental Protection Agency (EPA), some paints can contain up to 300 grams of VOCs per liter. In contrast, glue typically contains lower levels of VOCs, with some types having as little as 5 grams per liter. Additionally, paints may contain lead and other heavy metals, which are known to be highly toxic and can lead to serious health problems, especially in children. Glue, while still containing some potentially harmful substances, generally has lower concentrations of these toxins.