Construction projects address concerns related to hazardous materials and waste disposal by implementing specific protocols and guidelines to ensure proper handling and disposal. This includes conducting an initial assessment to identify any hazardous materials present on the site, developing a detailed waste management plan, providing training to workers on safe handling procedures, and ensuring compliance with local regulations and environmental standards. Additionally, construction projects may work with specialized contractors or waste disposal facilities to safely remove and dispose of hazardous materials in an environmentally responsible manner.