Provide a summary of the three most prominent indoor air contaminants discussed under the 'Research Topics' section of this website. For each contaminant, describe its typical sources and at least one potential health effect, based on the information provided on the site.
Navigate to the 'Topics' section. Identify the most prominent or frequently discussed contaminants listed under 'Research Topics'. For each identified contaminant, navigate to its dedicated page. Extract information regarding its typical sources and at least one potential health effect. Synthesize the collected information for the three most prominent contaminants into a concise summary.
Identify 'Volatile Organic Compounds (VOCs)', 'Formaldehyde', and 'Aerosols' (as carriers of pathogens) as the three most prominent contaminants. For VOCs: State sources (e.g., building materials, furnishings, consumer products, tobacco smoking, indoor chemical reactions, outdoor air, people and their activities) and mention health effects (e.g., eye, nose, throat, or skin irritation). For Formaldehyde: State sources (similar to general VOCs) and mention health effects (e.g., eye, nose, throat, or skin irritation). For Aerosols: State their implied source (transmission of respiratory infections) and mention health effects (e.g., respiratory infections). All provided information for sources and health effects must be consistent with the content found on the website.