What contaminants are dangerous for humans?

Dangerous contaminants for humans include heavy metals like lead and Mercury, which can cause neurological and developmental issues; pesticides, which can lead to acute poisoning and long-term health effects; and pathogens such as bacteria and viruses that can cause Infectious Diseases. Additionally, air pollutants like particulate matter and volatile organic compounds can harm respiratory health and contribute to chronic diseases. Exposure to these contaminants can occur through various routes, including ingestion, inhalation, and skin contact.