Several pollutants are particularly harmful to neonates: - Particulate Matter (PM): Fine particles that can penetrate deeply into the lungs and bloodstream. - Lead: A heavy metal that can cause neurological damage. - Mercury: A neurotoxin that can impair brain development. - Pesticides: Chemicals used in agriculture that can disrupt endocrine function. - Phthalates: Chemicals found in plastics that can affect reproductive health.